diff --git a/FreeSql.DbContext/DbContext/DbContext.cs b/FreeSql.DbContext/DbContext/DbContext.cs
index 9f59b794..c4ac6da4 100644
--- a/FreeSql.DbContext/DbContext/DbContext.cs
+++ b/FreeSql.DbContext/DbContext/DbContext.cs
@@ -43,7 +43,7 @@ namespace FreeSql
                 if (_optionsPriv == null)
                 {
                     _optionsPriv = new DbContextOptions();
-                    if (FreeSqlDbContextExtensions._dicSetDbContextOptions.TryGetValue(Orm, out var opt))
+                    if (FreeSqlDbContextExtensions._dicSetDbContextOptions.TryGetValue(Orm.Ado.Identifier, out var opt))
                     {
                         _optionsPriv.EnableAddOrUpdateNavigateList = opt.EnableAddOrUpdateNavigateList;
                         _optionsPriv.OnEntityChange = opt.OnEntityChange;
diff --git a/FreeSql.DbContext/Extensions/FreeSqlDbContextExtensions.cs b/FreeSql.DbContext/Extensions/FreeSqlDbContextExtensions.cs
index b4658e20..c6084096 100644
--- a/FreeSql.DbContext/Extensions/FreeSqlDbContextExtensions.cs
+++ b/FreeSql.DbContext/Extensions/FreeSqlDbContextExtensions.cs
@@ -35,10 +35,10 @@ public static class FreeSqlDbContextExtensions
     public static IFreeSql SetDbContextOptions(this IFreeSql that, Action<DbContextOptions> options)
     {
         if (options == null) return that;
-        var cfg = _dicSetDbContextOptions.GetOrAdd(that, t => new DbContextOptions());
+        var cfg = _dicSetDbContextOptions.GetOrAdd(that.Ado.Identifier, t => new DbContextOptions());
         options(cfg);
-        _dicSetDbContextOptions.AddOrUpdate(that, cfg, (t, o) => cfg);
+        _dicSetDbContextOptions.AddOrUpdate(that.Ado.Identifier, cfg, (t, o) => cfg);
         return that;
     }
-    internal static ConcurrentDictionary<IFreeSql, DbContextOptions> _dicSetDbContextOptions = new ConcurrentDictionary<IFreeSql, DbContextOptions>();
+    internal static ConcurrentDictionary<Guid, DbContextOptions> _dicSetDbContextOptions = new ConcurrentDictionary<Guid, DbContextOptions>();
 }
\ No newline at end of file
diff --git a/FreeSql.DbContext/FreeSql.DbContext.xml b/FreeSql.DbContext/FreeSql.DbContext.xml
index eacd506b..63db6c75 100644
--- a/FreeSql.DbContext/FreeSql.DbContext.xml
+++ b/FreeSql.DbContext/FreeSql.DbContext.xml
@@ -121,13 +121,6 @@
             清空状态数据
             </summary>
         </member>
-        <member name="M:FreeSql.DbSet`1.RemoveAsync(System.Linq.Expressions.Expression{System.Func{`0,System.Boolean}})">
-            <summary>
-            根据 lambda 条件删除数据
-            </summary>
-            <param name="predicate"></param>
-            <returns></returns>
-        </member>
         <member name="M:FreeSql.DbSet`1.Add(`0)">
             <summary>
             添加
@@ -222,15 +215,6 @@
             </summary>
             <returns></returns>
         </member>
-        <member name="M:FreeSql.FreeSqlRepositoryDependencyInjection.AddFreeRepository(Microsoft.Extensions.DependencyInjection.IServiceCollection,System.Action{FreeSql.FluentDataFilter},System.Reflection.Assembly[])">
-            <summary>
-            批量注入 Repository，可以参考代码自行调整
-            </summary>
-            <param name="services"></param>
-            <param name="globalDataFilter"></param>
-            <param name="assemblies"></param>
-            <returns></returns>
-        </member>
         <member name="P:FreeSql.IBaseRepository.Orm">
             <summary>
             注意：IFreeSql 属于顶级对象，事务无法自动传递。<para></para>
diff --git a/FreeSql.Tests/FreeSql.Tests.DbContext/UnitTest1.cs b/FreeSql.Tests/FreeSql.Tests.DbContext/UnitTest1.cs
index 1f2e7e9c..f01f8158 100644
--- a/FreeSql.Tests/FreeSql.Tests.DbContext/UnitTest1.cs
+++ b/FreeSql.Tests/FreeSql.Tests.DbContext/UnitTest1.cs
@@ -148,7 +148,7 @@ namespace FreeSql.Tests
 
             //֧�� 1�Զ� ��������
 
-            using (var ctx = new FreeContext(g.sqlite))
+            using (var ctx = g.sqlite.CreateDbContext())
             {
 
                 var tags = ctx.Set<Tag>().Select.IncludeMany(a => a.Tags).ToList();
@@ -177,7 +177,7 @@ namespace FreeSql.Tests
         {
             //��ѯ 1�Զ࣬�ټ�������
 
-            using (var ctx = new FreeContext(g.sqlite))
+            using (var ctx = g.sqlite.CreateDbContext())
             {
 
                 var tag = ctx.Set<Tag>().Select.First();
diff --git a/FreeSql.Tests/FreeSql.Tests.Provider.MySqlConnector/MySqlConnector/Curd/MySqlSelectTest.cs b/FreeSql.Tests/FreeSql.Tests.Provider.MySqlConnector/MySqlConnector/Curd/MySqlSelectTest.cs
index 5b67eff0..554be95f 100644
--- a/FreeSql.Tests/FreeSql.Tests.Provider.MySqlConnector/MySqlConnector/Curd/MySqlSelectTest.cs
+++ b/FreeSql.Tests/FreeSql.Tests.Provider.MySqlConnector/MySqlConnector/Curd/MySqlSelectTest.cs
@@ -1848,5 +1848,90 @@ WHERE ((b.`IsFinished` OR a.`TaskType` = 3) AND b.`EnabledMark` = 1)", groupsql1
                 orm.Select<ToUpd1Pk>().ForUpdate(true).Limit(1).ToList();
             });
         }
+
+        [Fact]
+        public void ToTreeList()
+        {
+            var fsql = g.mysql;
+            fsql.Delete<BaseDistrict>().Where("1=1").ExecuteAffrows();
+            var repo = fsql.GetRepository<VM_District_Child>();
+            repo.DbContextOptions.EnableAddOrUpdateNavigateList = true;
+            repo.DbContextOptions.NoneParameter = true;
+            repo.Insert(new VM_District_Child
+            {
+                Code = "100000",
+                Name = "中国",
+                Childs = new List<VM_District_Child>(new[] {
+                    new VM_District_Child
+                    {
+                        Code = "110000",
+                        Name = "北京市",
+                        Childs = new List<VM_District_Child>(new[] {
+                            new VM_District_Child{ Code="110100", Name = "北京市" },
+                            new VM_District_Child{ Code="110101", Name = "东城区" },
+                        })
+                    }
+                })
+            });
+
+            var t1 = fsql.Select<VM_District_Parent>()
+                .InnerJoin(a => a.ParentCode == a.Parent.Code)
+                .Where(a => a.Code == "110101")
+                .ToList(true);
+            Assert.Single(t1);
+            Assert.Equal("110101", t1[0].Code);
+            Assert.NotNull(t1[0].Parent);
+            Assert.Equal("110000", t1[0].Parent.Code);
+
+            var t2 = fsql.Select<VM_District_Parent>()
+                .InnerJoin(a => a.ParentCode == a.Parent.Code)
+                .InnerJoin(a => a.Parent.ParentCode == a.Parent.Parent.Code)
+                .Where(a => a.Code == "110101")
+                .ToList(true);
+            Assert.Single(t2);
+            Assert.Equal("110101", t2[0].Code);
+            Assert.NotNull(t2[0].Parent);
+            Assert.Equal("110000", t2[0].Parent.Code);
+            Assert.NotNull(t2[0].Parent.Parent);
+            Assert.Equal("100000", t2[0].Parent.Parent.Code);
+
+            var t3 = fsql.Select<VM_District_Child>().ToTreeList();
+            Assert.Single(t3);
+            Assert.Equal("100000", t3[0].Code);
+            Assert.Single(t3[0].Childs);
+            Assert.Equal("110000", t3[0].Childs[0].Code);
+            Assert.Equal(2, t3[0].Childs[0].Childs.Count);
+            Assert.Equal("110100", t3[0].Childs[0].Childs[0].Code);
+            Assert.Equal("110101", t3[0].Childs[0].Childs[1].Code);
+        }
+
+        [Table(Name = "D_District")]
+        public class BaseDistrict
+        {
+            [Column(IsPrimary = true, StringLength = 6)]
+            public string Code { get; set; }
+
+            [Column(StringLength = 20, IsNullable = false)]
+            public string Name { get; set; }
+
+            [Column(StringLength = 6)]
+            public virtual string ParentCode { get; set; }
+        }
+        [Table(Name = "D_District", DisableSyncStructure = true)]
+        public class VM_District_Child : BaseDistrict
+        {
+            public override string ParentCode { get => base.ParentCode; set => base.ParentCode = value; }
+
+            [Navigate(nameof(ParentCode))]
+            public List<VM_District_Child> Childs { get; set; }
+        }
+        [Table(Name = "D_District", DisableSyncStructure = true)]
+        public class VM_District_Parent : BaseDistrict
+        {
+            public override string ParentCode { get => base.ParentCode; set => base.ParentCode = value; }
+
+            [Navigate(nameof(ParentCode))]
+            public VM_District_Parent Parent { get; set; }
+        }
     }
 }
diff --git a/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/Dameng/Curd/DamengSelectTest.cs b/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/Dameng/Curd/DamengSelectTest.cs
index ea7b538e..20705c2a 100644
--- a/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/Dameng/Curd/DamengSelectTest.cs
+++ b/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/Dameng/Curd/DamengSelectTest.cs
@@ -1698,5 +1698,90 @@ WHERE (((to_char(a.""ID"")) in (SELECT b.""TITLE""
                 orm.Select<ToUpd1Pk>().ForUpdate(true).Limit(1).ToList();
             });
         }
+
+        [Fact]
+        public void ToTreeList()
+        {
+            var fsql = g.dameng;
+            fsql.Delete<BaseDistrict>().Where("1=1").ExecuteAffrows();
+            var repo = fsql.GetRepository<VM_District_Child>();
+            repo.DbContextOptions.EnableAddOrUpdateNavigateList = true;
+            repo.DbContextOptions.NoneParameter = true;
+            repo.Insert(new VM_District_Child
+            {
+                Code = "100000",
+                Name = "中国",
+                Childs = new List<VM_District_Child>(new[] {
+                    new VM_District_Child
+                    {
+                        Code = "110000",
+                        Name = "北京市",
+                        Childs = new List<VM_District_Child>(new[] {
+                            new VM_District_Child{ Code="110100", Name = "北京市" },
+                            new VM_District_Child{ Code="110101", Name = "东城区" },
+                        })
+                    }
+                })
+            });
+
+            var t1 = fsql.Select<VM_District_Parent>()
+                .InnerJoin(a => a.ParentCode == a.Parent.Code)
+                .Where(a => a.Code == "110101")
+                .ToList(true);
+            Assert.Single(t1);
+            Assert.Equal("110101", t1[0].Code);
+            Assert.NotNull(t1[0].Parent);
+            Assert.Equal("110000", t1[0].Parent.Code);
+
+            var t2 = fsql.Select<VM_District_Parent>()
+                .InnerJoin(a => a.ParentCode == a.Parent.Code)
+                .InnerJoin(a => a.Parent.ParentCode == a.Parent.Parent.Code)
+                .Where(a => a.Code == "110101")
+                .ToList(true);
+            Assert.Single(t2);
+            Assert.Equal("110101", t2[0].Code);
+            Assert.NotNull(t2[0].Parent);
+            Assert.Equal("110000", t2[0].Parent.Code);
+            Assert.NotNull(t2[0].Parent.Parent);
+            Assert.Equal("100000", t2[0].Parent.Parent.Code);
+
+            var t3 = fsql.Select<VM_District_Child>().ToTreeList();
+            Assert.Single(t3);
+            Assert.Equal("100000", t3[0].Code);
+            Assert.Single(t3[0].Childs);
+            Assert.Equal("110000", t3[0].Childs[0].Code);
+            Assert.Equal(2, t3[0].Childs[0].Childs.Count);
+            Assert.Equal("110100", t3[0].Childs[0].Childs[0].Code);
+            Assert.Equal("110101", t3[0].Childs[0].Childs[1].Code);
+        }
+
+        [Table(Name = "D_District")]
+        public class BaseDistrict
+        {
+            [Column(IsPrimary = true, StringLength = 6)]
+            public string Code { get; set; }
+
+            [Column(StringLength = 20, IsNullable = false)]
+            public string Name { get; set; }
+
+            [Column(StringLength = 6)]
+            public virtual string ParentCode { get; set; }
+        }
+        [Table(Name = "D_District", DisableSyncStructure = true)]
+        public class VM_District_Child : BaseDistrict
+        {
+            public override string ParentCode { get => base.ParentCode; set => base.ParentCode = value; }
+
+            [Navigate(nameof(ParentCode))]
+            public List<VM_District_Child> Childs { get; set; }
+        }
+        [Table(Name = "D_District", DisableSyncStructure = true)]
+        public class VM_District_Parent : BaseDistrict
+        {
+            public override string ParentCode { get => base.ParentCode; set => base.ParentCode = value; }
+
+            [Navigate(nameof(ParentCode))]
+            public VM_District_Parent Parent { get; set; }
+        }
     }
 }
diff --git a/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/Default/Curd/OdbcSelectTest.cs b/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/Default/Curd/OdbcSelectTest.cs
index c0a0a23e..617e15d3 100644
--- a/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/Default/Curd/OdbcSelectTest.cs
+++ b/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/Default/Curd/OdbcSelectTest.cs
@@ -1510,5 +1510,90 @@ WHERE (((cast(a.[Id] as nvarchar)) in (SELECT b.[Title]
                 orm.Select<ToUpd1Pk>().ForUpdate(true).Limit(1).ToList();
             });
         }
+
+        [Fact]
+        public void ToTreeList()
+        {
+            var fsql = g.odbc;
+            fsql.Delete<BaseDistrict>().Where("1=1").ExecuteAffrows();
+            var repo = fsql.GetRepository<VM_District_Child>();
+            repo.DbContextOptions.EnableAddOrUpdateNavigateList = true;
+            repo.DbContextOptions.NoneParameter = true;
+            repo.Insert(new VM_District_Child
+            {
+                Code = "100000",
+                Name = "中国",
+                Childs = new List<VM_District_Child>(new[] {
+                    new VM_District_Child
+                    {
+                        Code = "110000",
+                        Name = "北京市",
+                        Childs = new List<VM_District_Child>(new[] {
+                            new VM_District_Child{ Code="110100", Name = "北京市" },
+                            new VM_District_Child{ Code="110101", Name = "东城区" },
+                        })
+                    }
+                })
+            });
+
+            var t1 = fsql.Select<VM_District_Parent>()
+                .InnerJoin(a => a.ParentCode == a.Parent.Code)
+                .Where(a => a.Code == "110101")
+                .ToList(true);
+            Assert.Single(t1);
+            Assert.Equal("110101", t1[0].Code);
+            Assert.NotNull(t1[0].Parent);
+            Assert.Equal("110000", t1[0].Parent.Code);
+
+            var t2 = fsql.Select<VM_District_Parent>()
+                .InnerJoin(a => a.ParentCode == a.Parent.Code)
+                .InnerJoin(a => a.Parent.ParentCode == a.Parent.Parent.Code)
+                .Where(a => a.Code == "110101")
+                .ToList(true);
+            Assert.Single(t2);
+            Assert.Equal("110101", t2[0].Code);
+            Assert.NotNull(t2[0].Parent);
+            Assert.Equal("110000", t2[0].Parent.Code);
+            Assert.NotNull(t2[0].Parent.Parent);
+            Assert.Equal("100000", t2[0].Parent.Parent.Code);
+
+            var t3 = fsql.Select<VM_District_Child>().ToTreeList();
+            Assert.Single(t3);
+            Assert.Equal("100000", t3[0].Code);
+            Assert.Single(t3[0].Childs);
+            Assert.Equal("110000", t3[0].Childs[0].Code);
+            Assert.Equal(2, t3[0].Childs[0].Childs.Count);
+            Assert.Equal("110100", t3[0].Childs[0].Childs[0].Code);
+            Assert.Equal("110101", t3[0].Childs[0].Childs[1].Code);
+        }
+
+        [Table(Name = "D_District")]
+        public class BaseDistrict
+        {
+            [Column(IsPrimary = true, StringLength = 6)]
+            public string Code { get; set; }
+
+            [Column(StringLength = 20, IsNullable = false)]
+            public string Name { get; set; }
+
+            [Column(StringLength = 6)]
+            public virtual string ParentCode { get; set; }
+        }
+        [Table(Name = "D_District", DisableSyncStructure = true)]
+        public class VM_District_Child : BaseDistrict
+        {
+            public override string ParentCode { get => base.ParentCode; set => base.ParentCode = value; }
+
+            [Navigate(nameof(ParentCode))]
+            public List<VM_District_Child> Childs { get; set; }
+        }
+        [Table(Name = "D_District", DisableSyncStructure = true)]
+        public class VM_District_Parent : BaseDistrict
+        {
+            public override string ParentCode { get => base.ParentCode; set => base.ParentCode = value; }
+
+            [Navigate(nameof(ParentCode))]
+            public VM_District_Parent Parent { get; set; }
+        }
     }
 }
diff --git a/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/MySql/Curd/MySqlSelectTest.cs b/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/MySql/Curd/MySqlSelectTest.cs
index d72847b8..fc1cd64f 100644
--- a/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/MySql/Curd/MySqlSelectTest.cs
+++ b/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/MySql/Curd/MySqlSelectTest.cs
@@ -1859,5 +1859,90 @@ WHERE ((b.`IsFinished` OR a.`TaskType` = 3) AND b.`EnabledMark` = 1)", groupsql1
                 orm.Select<ToUpd1Pk>().ForUpdate(true).Limit(1).ToList();
             });
         }
+
+        [Fact]
+        public void ToTreeList()
+        {
+            var fsql = g.mysql;
+            fsql.Delete<BaseDistrict>().Where("1=1").ExecuteAffrows();
+            var repo = fsql.GetRepository<VM_District_Child>();
+            repo.DbContextOptions.EnableAddOrUpdateNavigateList = true;
+            repo.DbContextOptions.NoneParameter = true;
+            repo.Insert(new VM_District_Child
+            {
+                Code = "100000",
+                Name = "中国",
+                Childs = new List<VM_District_Child>(new[] {
+                    new VM_District_Child
+                    {
+                        Code = "110000",
+                        Name = "北京市",
+                        Childs = new List<VM_District_Child>(new[] {
+                            new VM_District_Child{ Code="110100", Name = "北京市" },
+                            new VM_District_Child{ Code="110101", Name = "东城区" },
+                        })
+                    }
+                })
+            });
+
+            var t1 = fsql.Select<VM_District_Parent>()
+                .InnerJoin(a => a.ParentCode == a.Parent.Code)
+                .Where(a => a.Code == "110101")
+                .ToList(true);
+            Assert.Single(t1);
+            Assert.Equal("110101", t1[0].Code);
+            Assert.NotNull(t1[0].Parent);
+            Assert.Equal("110000", t1[0].Parent.Code);
+
+            var t2 = fsql.Select<VM_District_Parent>()
+                .InnerJoin(a => a.ParentCode == a.Parent.Code)
+                .InnerJoin(a => a.Parent.ParentCode == a.Parent.Parent.Code)
+                .Where(a => a.Code == "110101")
+                .ToList(true);
+            Assert.Single(t2);
+            Assert.Equal("110101", t2[0].Code);
+            Assert.NotNull(t2[0].Parent);
+            Assert.Equal("110000", t2[0].Parent.Code);
+            Assert.NotNull(t2[0].Parent.Parent);
+            Assert.Equal("100000", t2[0].Parent.Parent.Code);
+
+            var t3 = fsql.Select<VM_District_Child>().ToTreeList();
+            Assert.Single(t3);
+            Assert.Equal("100000", t3[0].Code);
+            Assert.Single(t3[0].Childs);
+            Assert.Equal("110000", t3[0].Childs[0].Code);
+            Assert.Equal(2, t3[0].Childs[0].Childs.Count);
+            Assert.Equal("110100", t3[0].Childs[0].Childs[0].Code);
+            Assert.Equal("110101", t3[0].Childs[0].Childs[1].Code);
+        }
+
+        [Table(Name = "D_District")]
+        public class BaseDistrict
+        {
+            [Column(IsPrimary = true, StringLength = 6)]
+            public string Code { get; set; }
+
+            [Column(StringLength = 20, IsNullable = false)]
+            public string Name { get; set; }
+
+            [Column(StringLength = 6)]
+            public virtual string ParentCode { get; set; }
+        }
+        [Table(Name = "D_District", DisableSyncStructure = true)]
+        public class VM_District_Child : BaseDistrict
+        {
+            public override string ParentCode { get => base.ParentCode; set => base.ParentCode = value; }
+
+            [Navigate(nameof(ParentCode))]
+            public List<VM_District_Child> Childs { get; set; }
+        }
+        [Table(Name = "D_District", DisableSyncStructure = true)]
+        public class VM_District_Parent : BaseDistrict
+        {
+            public override string ParentCode { get => base.ParentCode; set => base.ParentCode = value; }
+
+            [Navigate(nameof(ParentCode))]
+            public VM_District_Parent Parent { get; set; }
+        }
     }
 }
diff --git a/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/Oracle/Curd/OracleSelectTest.cs b/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/Oracle/Curd/OracleSelectTest.cs
index e97f991c..fa4e36d9 100644
--- a/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/Oracle/Curd/OracleSelectTest.cs
+++ b/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/Oracle/Curd/OracleSelectTest.cs
@@ -1699,5 +1699,90 @@ WHERE (((to_char(a.""ID"")) in (SELECT b.""TITLE""
                 orm.Select<ToUpd1Pk>().ForUpdate(true).Limit(1).ToList();
             });
         }
+
+        [Fact]
+        public void ToTreeList()
+        {
+            var fsql = g.oracle;
+            fsql.Delete<BaseDistrict>().Where("1=1").ExecuteAffrows();
+            var repo = fsql.GetRepository<VM_District_Child>();
+            repo.DbContextOptions.EnableAddOrUpdateNavigateList = true;
+            repo.DbContextOptions.NoneParameter = true;
+            repo.Insert(new VM_District_Child
+            {
+                Code = "100000",
+                Name = "中国",
+                Childs = new List<VM_District_Child>(new[] {
+                    new VM_District_Child
+                    {
+                        Code = "110000",
+                        Name = "北京市",
+                        Childs = new List<VM_District_Child>(new[] {
+                            new VM_District_Child{ Code="110100", Name = "北京市" },
+                            new VM_District_Child{ Code="110101", Name = "东城区" },
+                        })
+                    }
+                })
+            });
+
+            var t1 = fsql.Select<VM_District_Parent>()
+                .InnerJoin(a => a.ParentCode == a.Parent.Code)
+                .Where(a => a.Code == "110101")
+                .ToList(true);
+            Assert.Single(t1);
+            Assert.Equal("110101", t1[0].Code);
+            Assert.NotNull(t1[0].Parent);
+            Assert.Equal("110000", t1[0].Parent.Code);
+
+            var t2 = fsql.Select<VM_District_Parent>()
+                .InnerJoin(a => a.ParentCode == a.Parent.Code)
+                .InnerJoin(a => a.Parent.ParentCode == a.Parent.Parent.Code)
+                .Where(a => a.Code == "110101")
+                .ToList(true);
+            Assert.Single(t2);
+            Assert.Equal("110101", t2[0].Code);
+            Assert.NotNull(t2[0].Parent);
+            Assert.Equal("110000", t2[0].Parent.Code);
+            Assert.NotNull(t2[0].Parent.Parent);
+            Assert.Equal("100000", t2[0].Parent.Parent.Code);
+
+            var t3 = fsql.Select<VM_District_Child>().ToTreeList();
+            Assert.Single(t3);
+            Assert.Equal("100000", t3[0].Code);
+            Assert.Single(t3[0].Childs);
+            Assert.Equal("110000", t3[0].Childs[0].Code);
+            Assert.Equal(2, t3[0].Childs[0].Childs.Count);
+            Assert.Equal("110100", t3[0].Childs[0].Childs[0].Code);
+            Assert.Equal("110101", t3[0].Childs[0].Childs[1].Code);
+        }
+
+        [Table(Name = "D_District")]
+        public class BaseDistrict
+        {
+            [Column(IsPrimary = true, StringLength = 6)]
+            public string Code { get; set; }
+
+            [Column(StringLength = 20, IsNullable = false)]
+            public string Name { get; set; }
+
+            [Column(StringLength = 6)]
+            public virtual string ParentCode { get; set; }
+        }
+        [Table(Name = "D_District", DisableSyncStructure = true)]
+        public class VM_District_Child : BaseDistrict
+        {
+            public override string ParentCode { get => base.ParentCode; set => base.ParentCode = value; }
+
+            [Navigate(nameof(ParentCode))]
+            public List<VM_District_Child> Childs { get; set; }
+        }
+        [Table(Name = "D_District", DisableSyncStructure = true)]
+        public class VM_District_Parent : BaseDistrict
+        {
+            public override string ParentCode { get => base.ParentCode; set => base.ParentCode = value; }
+
+            [Navigate(nameof(ParentCode))]
+            public VM_District_Parent Parent { get; set; }
+        }
     }
 }
diff --git a/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/PostgreSQL/Curd/PostgreSQLSelectTest.cs b/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/PostgreSQL/Curd/PostgreSQLSelectTest.cs
index 3f9b79cf..c46c8307 100644
--- a/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/PostgreSQL/Curd/PostgreSQLSelectTest.cs
+++ b/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/PostgreSQL/Curd/PostgreSQLSelectTest.cs
@@ -1758,5 +1758,90 @@ WHERE ((((a.""id"")::varchar) in (SELECT b.""title""
                 orm.Select<ToUpd1Pk>().ForUpdate(true).Limit(1).ToList();
             });
         }
+
+        [Fact]
+        public void ToTreeList()
+        {
+            var fsql = g.pgsql;
+            fsql.Delete<BaseDistrict>().Where("1=1").ExecuteAffrows();
+            var repo = fsql.GetRepository<VM_District_Child>();
+            repo.DbContextOptions.EnableAddOrUpdateNavigateList = true;
+            repo.DbContextOptions.NoneParameter = true;
+            repo.Insert(new VM_District_Child
+            {
+                Code = "100000",
+                Name = "中国",
+                Childs = new List<VM_District_Child>(new[] {
+                    new VM_District_Child
+                    {
+                        Code = "110000",
+                        Name = "北京市",
+                        Childs = new List<VM_District_Child>(new[] {
+                            new VM_District_Child{ Code="110100", Name = "北京市" },
+                            new VM_District_Child{ Code="110101", Name = "东城区" },
+                        })
+                    }
+                })
+            });
+
+            var t1 = fsql.Select<VM_District_Parent>()
+                .InnerJoin(a => a.ParentCode == a.Parent.Code)
+                .Where(a => a.Code == "110101")
+                .ToList(true);
+            Assert.Single(t1);
+            Assert.Equal("110101", t1[0].Code);
+            Assert.NotNull(t1[0].Parent);
+            Assert.Equal("110000", t1[0].Parent.Code);
+
+            var t2 = fsql.Select<VM_District_Parent>()
+                .InnerJoin(a => a.ParentCode == a.Parent.Code)
+                .InnerJoin(a => a.Parent.ParentCode == a.Parent.Parent.Code)
+                .Where(a => a.Code == "110101")
+                .ToList(true);
+            Assert.Single(t2);
+            Assert.Equal("110101", t2[0].Code);
+            Assert.NotNull(t2[0].Parent);
+            Assert.Equal("110000", t2[0].Parent.Code);
+            Assert.NotNull(t2[0].Parent.Parent);
+            Assert.Equal("100000", t2[0].Parent.Parent.Code);
+
+            var t3 = fsql.Select<VM_District_Child>().ToTreeList();
+            Assert.Single(t3);
+            Assert.Equal("100000", t3[0].Code);
+            Assert.Single(t3[0].Childs);
+            Assert.Equal("110000", t3[0].Childs[0].Code);
+            Assert.Equal(2, t3[0].Childs[0].Childs.Count);
+            Assert.Equal("110100", t3[0].Childs[0].Childs[0].Code);
+            Assert.Equal("110101", t3[0].Childs[0].Childs[1].Code);
+        }
+
+        [Table(Name = "D_District")]
+        public class BaseDistrict
+        {
+            [Column(IsPrimary = true, StringLength = 6)]
+            public string Code { get; set; }
+
+            [Column(StringLength = 20, IsNullable = false)]
+            public string Name { get; set; }
+
+            [Column(StringLength = 6)]
+            public virtual string ParentCode { get; set; }
+        }
+        [Table(Name = "D_District", DisableSyncStructure = true)]
+        public class VM_District_Child : BaseDistrict
+        {
+            public override string ParentCode { get => base.ParentCode; set => base.ParentCode = value; }
+
+            [Navigate(nameof(ParentCode))]
+            public List<VM_District_Child> Childs { get; set; }
+        }
+        [Table(Name = "D_District", DisableSyncStructure = true)]
+        public class VM_District_Parent : BaseDistrict
+        {
+            public override string ParentCode { get => base.ParentCode; set => base.ParentCode = value; }
+
+            [Navigate(nameof(ParentCode))]
+            public VM_District_Parent Parent { get; set; }
+        }
     }
 }
diff --git a/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/SqlServer/Curd/SqlServerSelectTest.cs b/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/SqlServer/Curd/SqlServerSelectTest.cs
index 701c91a7..ff5031e9 100644
--- a/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/SqlServer/Curd/SqlServerSelectTest.cs
+++ b/FreeSql.Tests/FreeSql.Tests.Provider.Odbc/SqlServer/Curd/SqlServerSelectTest.cs
@@ -1649,5 +1649,90 @@ WHERE (((cast(a.[Id] as nvarchar)) in (SELECT b.[Title]
                 orm.Select<ToUpd1Pk>().ForUpdate(true).Limit(1).ToList();
             });
         }
+
+        [Fact]
+        public void ToTreeList()
+        {
+            var fsql = g.sqlserver;
+            fsql.Delete<BaseDistrict>().Where("1=1").ExecuteAffrows();
+            var repo = fsql.GetRepository<VM_District_Child>();
+            repo.DbContextOptions.EnableAddOrUpdateNavigateList = true;
+            repo.DbContextOptions.NoneParameter = true;
+            repo.Insert(new VM_District_Child
+            {
+                Code = "100000",
+                Name = "中国",
+                Childs = new List<VM_District_Child>(new[] {
+                    new VM_District_Child
+                    {
+                        Code = "110000",
+                        Name = "北京市",
+                        Childs = new List<VM_District_Child>(new[] {
+                            new VM_District_Child{ Code="110100", Name = "北京市" },
+                            new VM_District_Child{ Code="110101", Name = "东城区" },
+                        })
+                    }
+                })
+            });
+
+            var t1 = fsql.Select<VM_District_Parent>()
+                .InnerJoin(a => a.ParentCode == a.Parent.Code)
+                .Where(a => a.Code == "110101")
+                .ToList(true);
+            Assert.Single(t1);
+            Assert.Equal("110101", t1[0].Code);
+            Assert.NotNull(t1[0].Parent);
+            Assert.Equal("110000", t1[0].Parent.Code);
+
+            var t2 = fsql.Select<VM_District_Parent>()
+                .InnerJoin(a => a.ParentCode == a.Parent.Code)
+                .InnerJoin(a => a.Parent.ParentCode == a.Parent.Parent.Code)
+                .Where(a => a.Code == "110101")
+                .ToList(true);
+            Assert.Single(t2);
+            Assert.Equal("110101", t2[0].Code);
+            Assert.NotNull(t2[0].Parent);
+            Assert.Equal("110000", t2[0].Parent.Code);
+            Assert.NotNull(t2[0].Parent.Parent);
+            Assert.Equal("100000", t2[0].Parent.Parent.Code);
+
+            var t3 = fsql.Select<VM_District_Child>().ToTreeList();
+            Assert.Single(t3);
+            Assert.Equal("100000", t3[0].Code);
+            Assert.Single(t3[0].Childs);
+            Assert.Equal("110000", t3[0].Childs[0].Code);
+            Assert.Equal(2, t3[0].Childs[0].Childs.Count);
+            Assert.Equal("110100", t3[0].Childs[0].Childs[0].Code);
+            Assert.Equal("110101", t3[0].Childs[0].Childs[1].Code);
+        }
+
+        [Table(Name = "D_District")]
+        public class BaseDistrict
+        {
+            [Column(IsPrimary = true, StringLength = 6)]
+            public string Code { get; set; }
+
+            [Column(StringLength = 20, IsNullable = false)]
+            public string Name { get; set; }
+
+            [Column(StringLength = 6)]
+            public virtual string ParentCode { get; set; }
+        }
+        [Table(Name = "D_District", DisableSyncStructure = true)]
+        public class VM_District_Child : BaseDistrict
+        {
+            public override string ParentCode { get => base.ParentCode; set => base.ParentCode = value; }
+
+            [Navigate(nameof(ParentCode))]
+            public List<VM_District_Child> Childs { get; set; }
+        }
+        [Table(Name = "D_District", DisableSyncStructure = true)]
+        public class VM_District_Parent : BaseDistrict
+        {
+            public override string ParentCode { get => base.ParentCode; set => base.ParentCode = value; }
+
+            [Navigate(nameof(ParentCode))]
+            public VM_District_Parent Parent { get; set; }
+        }
     }
 }
diff --git a/FreeSql.Tests/FreeSql.Tests/MsAccess/Curd/MsAccessSelectTest.cs b/FreeSql.Tests/FreeSql.Tests/MsAccess/Curd/MsAccessSelectTest.cs
index 7bb03da1..09682b77 100644
--- a/FreeSql.Tests/FreeSql.Tests/MsAccess/Curd/MsAccessSelectTest.cs
+++ b/FreeSql.Tests/FreeSql.Tests/MsAccess/Curd/MsAccessSelectTest.cs
@@ -1511,5 +1511,90 @@ WHERE (((cstr(a.[Id])) in (SELECT b.[Title]
                 orm.Select<ToUpd1Pk>().ForUpdate(true).Limit(1).ToList();
             });
         }
+
+        [Fact]
+        public void ToTreeList()
+        {
+            var fsql = g.msaccess;
+            fsql.Delete<BaseDistrict>().Where("1=1").ExecuteAffrows();
+            var repo = fsql.GetRepository<VM_District_Child>();
+            repo.DbContextOptions.EnableAddOrUpdateNavigateList = true;
+            repo.DbContextOptions.NoneParameter = true;
+            repo.Insert(new VM_District_Child
+            {
+                Code = "100000",
+                Name = "中国",
+                Childs = new List<VM_District_Child>(new[] {
+                    new VM_District_Child
+                    {
+                        Code = "110000",
+                        Name = "北京市",
+                        Childs = new List<VM_District_Child>(new[] {
+                            new VM_District_Child{ Code="110100", Name = "北京市" },
+                            new VM_District_Child{ Code="110101", Name = "东城区" },
+                        })
+                    }
+                })
+            });
+
+            var t1 = fsql.Select<VM_District_Parent>()
+                .InnerJoin(a => a.ParentCode == a.Parent.Code)
+                .Where(a => a.Code == "110101")
+                .ToList(true);
+            Assert.Single(t1);
+            Assert.Equal("110101", t1[0].Code);
+            Assert.NotNull(t1[0].Parent);
+            Assert.Equal("110000", t1[0].Parent.Code);
+
+            var t2 = fsql.Select<VM_District_Parent>()
+                .InnerJoin(a => a.ParentCode == a.Parent.Code)
+                .InnerJoin(a => a.Parent.ParentCode == a.Parent.Parent.Code)
+                .Where(a => a.Code == "110101")
+                .ToList(true);
+            Assert.Single(t2);
+            Assert.Equal("110101", t2[0].Code);
+            Assert.NotNull(t2[0].Parent);
+            Assert.Equal("110000", t2[0].Parent.Code);
+            Assert.NotNull(t2[0].Parent.Parent);
+            Assert.Equal("100000", t2[0].Parent.Parent.Code);
+
+            var t3 = fsql.Select<VM_District_Child>().ToTreeList();
+            Assert.Single(t3);
+            Assert.Equal("100000", t3[0].Code);
+            Assert.Single(t3[0].Childs);
+            Assert.Equal("110000", t3[0].Childs[0].Code);
+            Assert.Equal(2, t3[0].Childs[0].Childs.Count);
+            Assert.Equal("110100", t3[0].Childs[0].Childs[0].Code);
+            Assert.Equal("110101", t3[0].Childs[0].Childs[1].Code);
+        }
+
+        [Table(Name = "D_District")]
+        public class BaseDistrict
+        {
+            [Column(IsPrimary = true, StringLength = 6)]
+            public string Code { get; set; }
+
+            [Column(StringLength = 20, IsNullable = false)]
+            public string Name { get; set; }
+
+            [Column(StringLength = 6)]
+            public virtual string ParentCode { get; set; }
+        }
+        [Table(Name = "D_District", DisableSyncStructure = true)]
+        public class VM_District_Child : BaseDistrict
+        {
+            public override string ParentCode { get => base.ParentCode; set => base.ParentCode = value; }
+
+            [Navigate(nameof(ParentCode))]
+            public List<VM_District_Child> Childs { get; set; }
+        }
+        [Table(Name = "D_District", DisableSyncStructure = true)]
+        public class VM_District_Parent : BaseDistrict
+        {
+            public override string ParentCode { get => base.ParentCode; set => base.ParentCode = value; }
+
+            [Navigate(nameof(ParentCode))]
+            public VM_District_Parent Parent { get; set; }
+        }
     }
 }
diff --git a/FreeSql.Tests/FreeSql.Tests/MySql/Curd/MySqlSelectTest.cs b/FreeSql.Tests/FreeSql.Tests/MySql/Curd/MySqlSelectTest.cs
index 60f05168..afbaffc4 100644
--- a/FreeSql.Tests/FreeSql.Tests/MySql/Curd/MySqlSelectTest.cs
+++ b/FreeSql.Tests/FreeSql.Tests/MySql/Curd/MySqlSelectTest.cs
@@ -1907,5 +1907,90 @@ WHERE ((b.`IsFinished` OR a.`TaskType` = 3) AND b.`EnabledMark` = 1)", groupsql1
                 orm.Select<ToUpd1Pk>().ForUpdate(true).Limit(1).ToList();
             });
         }
+
+        [Fact]
+        public void ToTreeList()
+        {
+            var fsql = g.mysql;
+            fsql.Delete<BaseDistrict>().Where("1=1").ExecuteAffrows();
+            var repo = fsql.GetRepository<VM_District_Child>();
+            repo.DbContextOptions.EnableAddOrUpdateNavigateList = true;
+            repo.DbContextOptions.NoneParameter = true;
+            repo.Insert(new VM_District_Child
+            {
+                Code = "100000",
+                Name = "中国",
+                Childs = new List<VM_District_Child>(new[] {
+                    new VM_District_Child
+                    {
+                        Code = "110000",
+                        Name = "北京市",
+                        Childs = new List<VM_District_Child>(new[] {
+                            new VM_District_Child{ Code="110100", Name = "北京市" },
+                            new VM_District_Child{ Code="110101", Name = "东城区" },
+                        })
+                    }
+                })
+            });
+
+            var t1 = fsql.Select<VM_District_Parent>()
+                .InnerJoin(a => a.ParentCode == a.Parent.Code)
+                .Where(a => a.Code == "110101")
+                .ToList(true);
+            Assert.Single(t1);
+            Assert.Equal("110101", t1[0].Code);
+            Assert.NotNull(t1[0].Parent);
+            Assert.Equal("110000", t1[0].Parent.Code);
+
+            var t2 = fsql.Select<VM_District_Parent>()
+                .InnerJoin(a => a.ParentCode == a.Parent.Code)
+                .InnerJoin(a => a.Parent.ParentCode == a.Parent.Parent.Code)
+                .Where(a => a.Code == "110101")
+                .ToList(true);
+            Assert.Single(t2);
+            Assert.Equal("110101", t2[0].Code);
+            Assert.NotNull(t2[0].Parent);
+            Assert.Equal("110000", t2[0].Parent.Code);
+            Assert.NotNull(t2[0].Parent.Parent);
+            Assert.Equal("100000", t2[0].Parent.Parent.Code);
+
+            var t3 = fsql.Select<VM_District_Child>().ToTreeList();
+            Assert.Single(t3);
+            Assert.Equal("100000", t3[0].Code);
+            Assert.Single(t3[0].Childs);
+            Assert.Equal("110000", t3[0].Childs[0].Code);
+            Assert.Equal(2, t3[0].Childs[0].Childs.Count);
+            Assert.Equal("110100", t3[0].Childs[0].Childs[0].Code);
+            Assert.Equal("110101", t3[0].Childs[0].Childs[1].Code);
+        }
+
+        [Table(Name = "D_District")]
+        public class BaseDistrict
+        {
+            [Column(IsPrimary = true, StringLength = 6)]
+            public string Code { get; set; }
+
+            [Column(StringLength = 20, IsNullable = false)]
+            public string Name { get; set; }
+
+            [Column(StringLength = 6)]
+            public virtual string ParentCode { get; set; }
+        }
+        [Table(Name = "D_District", DisableSyncStructure = true)]
+        public class VM_District_Child : BaseDistrict
+        {
+            public override string ParentCode { get => base.ParentCode; set => base.ParentCode = value; }
+
+            [Navigate(nameof(ParentCode))]
+            public List<VM_District_Child> Childs { get; set; }
+        }
+        [Table(Name = "D_District", DisableSyncStructure = true)]
+        public class VM_District_Parent : BaseDistrict
+        {
+            public override string ParentCode { get => base.ParentCode; set => base.ParentCode = value; }
+
+            [Navigate(nameof(ParentCode))]
+            public VM_District_Parent Parent { get; set; }
+        }
     }
 }
diff --git a/FreeSql.Tests/FreeSql.Tests/Oracle/Curd/OracleSelectTest.cs b/FreeSql.Tests/FreeSql.Tests/Oracle/Curd/OracleSelectTest.cs
index 26aacc73..c61ce957 100644
--- a/FreeSql.Tests/FreeSql.Tests/Oracle/Curd/OracleSelectTest.cs
+++ b/FreeSql.Tests/FreeSql.Tests/Oracle/Curd/OracleSelectTest.cs
@@ -1699,5 +1699,90 @@ WHERE (((to_char(a.""ID"")) in (SELECT b.""TITLE""
                 orm.Select<ToUpd1Pk>().ForUpdate(true).Limit(1).ToList();
             });
         }
+
+        [Fact]
+        public void ToTreeList()
+        {
+            var fsql = g.oracle;
+            fsql.Delete<BaseDistrict>().Where("1=1").ExecuteAffrows();
+            var repo = fsql.GetRepository<VM_District_Child>();
+            repo.DbContextOptions.EnableAddOrUpdateNavigateList = true;
+            repo.DbContextOptions.NoneParameter = true;
+            repo.Insert(new VM_District_Child
+            {
+                Code = "100000",
+                Name = "中国",
+                Childs = new List<VM_District_Child>(new[] {
+                    new VM_District_Child
+                    {
+                        Code = "110000",
+                        Name = "北京市",
+                        Childs = new List<VM_District_Child>(new[] {
+                            new VM_District_Child{ Code="110100", Name = "北京市" },
+                            new VM_District_Child{ Code="110101", Name = "东城区" },
+                        })
+                    }
+                })
+            });
+
+            var t1 = fsql.Select<VM_District_Parent>()
+                .InnerJoin(a => a.ParentCode == a.Parent.Code)
+                .Where(a => a.Code == "110101")
+                .ToList(true);
+            Assert.Single(t1);
+            Assert.Equal("110101", t1[0].Code);
+            Assert.NotNull(t1[0].Parent);
+            Assert.Equal("110000", t1[0].Parent.Code);
+
+            var t2 = fsql.Select<VM_District_Parent>()
+                .InnerJoin(a => a.ParentCode == a.Parent.Code)
+                .InnerJoin(a => a.Parent.ParentCode == a.Parent.Parent.Code)
+                .Where(a => a.Code == "110101")
+                .ToList(true);
+            Assert.Single(t2);
+            Assert.Equal("110101", t2[0].Code);
+            Assert.NotNull(t2[0].Parent);
+            Assert.Equal("110000", t2[0].Parent.Code);
+            Assert.NotNull(t2[0].Parent.Parent);
+            Assert.Equal("100000", t2[0].Parent.Parent.Code);
+
+            var t3 = fsql.Select<VM_District_Child>().ToTreeList();
+            Assert.Single(t3);
+            Assert.Equal("100000", t3[0].Code);
+            Assert.Single(t3[0].Childs);
+            Assert.Equal("110000", t3[0].Childs[0].Code);
+            Assert.Equal(2, t3[0].Childs[0].Childs.Count);
+            Assert.Equal("110100", t3[0].Childs[0].Childs[0].Code);
+            Assert.Equal("110101", t3[0].Childs[0].Childs[1].Code);
+        }
+
+        [Table(Name = "D_District")]
+        public class BaseDistrict
+        {
+            [Column(IsPrimary = true, StringLength = 6)]
+            public string Code { get; set; }
+
+            [Column(StringLength = 20, IsNullable = false)]
+            public string Name { get; set; }
+
+            [Column(StringLength = 6)]
+            public virtual string ParentCode { get; set; }
+        }
+        [Table(Name = "D_District", DisableSyncStructure = true)]
+        public class VM_District_Child : BaseDistrict
+        {
+            public override string ParentCode { get => base.ParentCode; set => base.ParentCode = value; }
+
+            [Navigate(nameof(ParentCode))]
+            public List<VM_District_Child> Childs { get; set; }
+        }
+        [Table(Name = "D_District", DisableSyncStructure = true)]
+        public class VM_District_Parent : BaseDistrict
+        {
+            public override string ParentCode { get => base.ParentCode; set => base.ParentCode = value; }
+
+            [Navigate(nameof(ParentCode))]
+            public VM_District_Parent Parent { get; set; }
+        }
     }
 }
diff --git a/FreeSql.Tests/FreeSql.Tests/PostgreSQL/Curd/PostgreSQLSelectTest.cs b/FreeSql.Tests/FreeSql.Tests/PostgreSQL/Curd/PostgreSQLSelectTest.cs
index 878c0150..c46c8779 100644
--- a/FreeSql.Tests/FreeSql.Tests/PostgreSQL/Curd/PostgreSQLSelectTest.cs
+++ b/FreeSql.Tests/FreeSql.Tests/PostgreSQL/Curd/PostgreSQLSelectTest.cs
@@ -1775,5 +1775,89 @@ WHERE ((((a.""id"")::varchar) in (SELECT b.""title""
                 orm.Select<ToUpd1Pk>().ForUpdate(true).Limit(1).ToList();
             });
         }
+        [Fact]
+        public void ToTreeList()
+        {
+            var fsql = g.pgsql;
+            fsql.Delete<BaseDistrict>().Where("1=1").ExecuteAffrows();
+            var repo = fsql.GetRepository<VM_District_Child>();
+            repo.DbContextOptions.EnableAddOrUpdateNavigateList = true;
+            repo.DbContextOptions.NoneParameter = true;
+            repo.Insert(new VM_District_Child
+            {
+                Code = "100000",
+                Name = "中国",
+                Childs = new List<VM_District_Child>(new[] {
+                    new VM_District_Child
+                    {
+                        Code = "110000",
+                        Name = "北京市",
+                        Childs = new List<VM_District_Child>(new[] {
+                            new VM_District_Child{ Code="110100", Name = "北京市" },
+                            new VM_District_Child{ Code="110101", Name = "东城区" },
+                        })
+                    }
+                })
+            });
+
+            var t1 = fsql.Select<VM_District_Parent>()
+                .InnerJoin(a => a.ParentCode == a.Parent.Code)
+                .Where(a => a.Code == "110101")
+                .ToList(true);
+            Assert.Single(t1);
+            Assert.Equal("110101", t1[0].Code);
+            Assert.NotNull(t1[0].Parent);
+            Assert.Equal("110000", t1[0].Parent.Code);
+
+            var t2 = fsql.Select<VM_District_Parent>()
+                .InnerJoin(a => a.ParentCode == a.Parent.Code)
+                .InnerJoin(a => a.Parent.ParentCode == a.Parent.Parent.Code)
+                .Where(a => a.Code == "110101")
+                .ToList(true);
+            Assert.Single(t2);
+            Assert.Equal("110101", t2[0].Code);
+            Assert.NotNull(t2[0].Parent);
+            Assert.Equal("110000", t2[0].Parent.Code);
+            Assert.NotNull(t2[0].Parent.Parent);
+            Assert.Equal("100000", t2[0].Parent.Parent.Code);
+
+            var t3 = fsql.Select<VM_District_Child>().ToTreeList();
+            Assert.Single(t3);
+            Assert.Equal("100000", t3[0].Code);
+            Assert.Single(t3[0].Childs);
+            Assert.Equal("110000", t3[0].Childs[0].Code);
+            Assert.Equal(2, t3[0].Childs[0].Childs.Count);
+            Assert.Equal("110100", t3[0].Childs[0].Childs[0].Code);
+            Assert.Equal("110101", t3[0].Childs[0].Childs[1].Code);
+        }
+
+        [Table(Name = "D_District")]
+        public class BaseDistrict
+        {
+            [Column(IsPrimary = true, StringLength = 6)]
+            public string Code { get; set; }
+
+            [Column(StringLength = 20, IsNullable = false)]
+            public string Name { get; set; }
+
+            [Column(StringLength = 6)]
+            public virtual string ParentCode { get; set; }
+        }
+        [Table(Name = "D_District", DisableSyncStructure = true)]
+        public class VM_District_Child : BaseDistrict
+        {
+            public override string ParentCode { get => base.ParentCode; set => base.ParentCode = value; }
+
+            [Navigate(nameof(ParentCode))]
+            public List<VM_District_Child> Childs { get; set; }
+        }
+        [Table(Name = "D_District", DisableSyncStructure = true)]
+        public class VM_District_Parent : BaseDistrict
+        {
+            public override string ParentCode { get => base.ParentCode; set => base.ParentCode = value; }
+
+            [Navigate(nameof(ParentCode))]
+            public VM_District_Parent Parent { get; set; }
+        }
     }
 }
diff --git a/FreeSql.Tests/FreeSql.Tests/SqlServer/Curd/SqlServerSelectTest.cs b/FreeSql.Tests/FreeSql.Tests/SqlServer/Curd/SqlServerSelectTest.cs
index 6625e85a..d21f844e 100644
--- a/FreeSql.Tests/FreeSql.Tests/SqlServer/Curd/SqlServerSelectTest.cs
+++ b/FreeSql.Tests/FreeSql.Tests/SqlServer/Curd/SqlServerSelectTest.cs
@@ -1730,5 +1730,90 @@ WHERE (((cast(a.[Id] as nvarchar)) in (SELECT b.[Title]
                 orm.Select<ToUpd1Pk>().ForUpdate(true).Limit(1).ToList();
             });
         }
+
+        [Fact]
+        public void ToTreeList()
+        {
+            var fsql = g.sqlserver;
+            fsql.Delete<BaseDistrict>().Where("1=1").ExecuteAffrows();
+            var repo = fsql.GetRepository<VM_District_Child>();
+            repo.DbContextOptions.EnableAddOrUpdateNavigateList = true;
+            repo.DbContextOptions.NoneParameter = true;
+            repo.Insert(new VM_District_Child
+            {
+                Code = "100000",
+                Name = "中国",
+                Childs = new List<VM_District_Child>(new[] {
+                    new VM_District_Child
+                    {
+                        Code = "110000",
+                        Name = "北京市",
+                        Childs = new List<VM_District_Child>(new[] {
+                            new VM_District_Child{ Code="110100", Name = "北京市" },
+                            new VM_District_Child{ Code="110101", Name = "东城区" },
+                        })
+                    }
+                })
+            });
+
+            var t1 = fsql.Select<VM_District_Parent>()
+                .InnerJoin(a => a.ParentCode == a.Parent.Code)
+                .Where(a => a.Code == "110101")
+                .ToList(true);
+            Assert.Single(t1);
+            Assert.Equal("110101", t1[0].Code);
+            Assert.NotNull(t1[0].Parent);
+            Assert.Equal("110000", t1[0].Parent.Code);
+
+            var t2 = fsql.Select<VM_District_Parent>()
+                .InnerJoin(a => a.ParentCode == a.Parent.Code)
+                .InnerJoin(a => a.Parent.ParentCode == a.Parent.Parent.Code)
+                .Where(a => a.Code == "110101")
+                .ToList(true);
+            Assert.Single(t2);
+            Assert.Equal("110101", t2[0].Code);
+            Assert.NotNull(t2[0].Parent);
+            Assert.Equal("110000", t2[0].Parent.Code);
+            Assert.NotNull(t2[0].Parent.Parent);
+            Assert.Equal("100000", t2[0].Parent.Parent.Code);
+
+            var t3 = fsql.Select<VM_District_Child>().ToTreeList();
+            Assert.Single(t3);
+            Assert.Equal("100000", t3[0].Code);
+            Assert.Single(t3[0].Childs);
+            Assert.Equal("110000", t3[0].Childs[0].Code);
+            Assert.Equal(2, t3[0].Childs[0].Childs.Count);
+            Assert.Equal("110100", t3[0].Childs[0].Childs[0].Code);
+            Assert.Equal("110101", t3[0].Childs[0].Childs[1].Code);
+        }
+
+        [Table(Name = "D_District")]
+        public class BaseDistrict
+        {
+            [Column(IsPrimary = true, StringLength = 6)]
+            public string Code { get; set; }
+
+            [Column(StringLength = 20, IsNullable = false)]
+            public string Name { get; set; }
+
+            [Column(StringLength = 6)]
+            public virtual string ParentCode { get; set; }
+        }
+        [Table(Name = "D_District", DisableSyncStructure = true)]
+        public class VM_District_Child : BaseDistrict
+        {
+            public override string ParentCode { get => base.ParentCode; set => base.ParentCode = value; }
+
+            [Navigate(nameof(ParentCode))]
+            public List<VM_District_Child> Childs { get; set; }
+        }
+        [Table(Name = "D_District", DisableSyncStructure = true)]
+        public class VM_District_Parent : BaseDistrict
+        {
+            public override string ParentCode { get => base.ParentCode; set => base.ParentCode = value; }
+
+            [Navigate(nameof(ParentCode))]
+            public VM_District_Parent Parent { get; set; }
+        }
     }
 }
diff --git a/FreeSql.Tests/FreeSql.Tests/Sqlite/Curd/SqliteSelectTest.cs b/FreeSql.Tests/FreeSql.Tests/Sqlite/Curd/SqliteSelectTest.cs
index 49f7cdb9..8d1b715c 100644
--- a/FreeSql.Tests/FreeSql.Tests/Sqlite/Curd/SqliteSelectTest.cs
+++ b/FreeSql.Tests/FreeSql.Tests/Sqlite/Curd/SqliteSelectTest.cs
@@ -1846,5 +1846,90 @@ WHERE (((cast(a.""Id"" as character)) in (SELECT b.""Title""
                 orm.Select<ToUpd1Pk>().ForUpdate(true).Limit(1).ToList();
             });
         }
+
+        [Fact]
+        public void ToTreeList()
+        {
+            var fsql = g.sqlite;
+            fsql.Delete<BaseDistrict>().Where("1=1").ExecuteAffrows();
+            var repo = fsql.GetRepository<VM_District_Child>();
+            repo.DbContextOptions.EnableAddOrUpdateNavigateList = true;
+            repo.DbContextOptions.NoneParameter = true;
+            repo.Insert(new VM_District_Child
+            {
+                Code = "100000",
+                Name = "中国",
+                Childs = new List<VM_District_Child>(new[] {
+                    new VM_District_Child
+                    {
+                        Code = "110000",
+                        Name = "北京市",
+                        Childs = new List<VM_District_Child>(new[] {
+                            new VM_District_Child{ Code="110100", Name = "北京市" },
+                            new VM_District_Child{ Code="110101", Name = "东城区" },
+                        })
+                    }
+                })
+            });
+
+            var t1 = fsql.Select<VM_District_Parent>()
+                .InnerJoin(a => a.ParentCode == a.Parent.Code)
+                .Where(a => a.Code == "110101")
+                .ToList(true);
+            Assert.Single(t1);
+            Assert.Equal("110101", t1[0].Code);
+            Assert.NotNull(t1[0].Parent);
+            Assert.Equal("110000", t1[0].Parent.Code);
+
+            var t2 = fsql.Select<VM_District_Parent>()
+                .InnerJoin(a => a.ParentCode == a.Parent.Code)
+                .InnerJoin(a => a.Parent.ParentCode == a.Parent.Parent.Code)
+                .Where(a => a.Code == "110101")
+                .ToList(true);
+            Assert.Single(t2);
+            Assert.Equal("110101", t2[0].Code);
+            Assert.NotNull(t2[0].Parent);
+            Assert.Equal("110000", t2[0].Parent.Code);
+            Assert.NotNull(t2[0].Parent.Parent);
+            Assert.Equal("100000", t2[0].Parent.Parent.Code);
+
+            var t3 = fsql.Select<VM_District_Child>().ToTreeList();
+            Assert.Single(t3);
+            Assert.Equal("100000", t3[0].Code);
+            Assert.Single(t3[0].Childs);
+            Assert.Equal("110000", t3[0].Childs[0].Code);
+            Assert.Equal(2, t3[0].Childs[0].Childs.Count);
+            Assert.Equal("110100", t3[0].Childs[0].Childs[0].Code);
+            Assert.Equal("110101", t3[0].Childs[0].Childs[1].Code);
+        }
+
+        [Table(Name = "D_District")]
+        public class BaseDistrict
+        {
+            [Column(IsPrimary = true, StringLength = 6)]
+            public string Code { get; set; }
+
+            [Column(StringLength = 20, IsNullable = false)]
+            public string Name { get; set; }
+
+            [Column(StringLength = 6)]
+            public virtual string ParentCode { get; set; }
+        }
+        [Table(Name = "D_District", DisableSyncStructure = true)]
+        public class VM_District_Child : BaseDistrict
+        {
+            public override string ParentCode { get => base.ParentCode; set => base.ParentCode = value; }
+
+            [Navigate(nameof(ParentCode))]
+            public List<VM_District_Child> Childs { get; set; }
+        }
+        [Table(Name = "D_District", DisableSyncStructure = true)]
+        public class VM_District_Parent : BaseDistrict
+        {
+            public override string ParentCode { get => base.ParentCode; set => base.ParentCode = value; }
+
+            [Navigate(nameof(ParentCode))]
+            public VM_District_Parent Parent { get; set; }
+        }
     }
 }
diff --git a/FreeSql.Tests/FreeSql.Tests/UnitTest4.cs b/FreeSql.Tests/FreeSql.Tests/UnitTest4.cs
deleted file mode 100644
index de67fa13..00000000
--- a/FreeSql.Tests/FreeSql.Tests/UnitTest4.cs
+++ /dev/null
@@ -1,111 +0,0 @@
-using FreeSql.DataAnnotations;
-using FreeSql;
-using System;
-using System.Collections.Generic;
-using Xunit;
-using System.Linq;
-using Newtonsoft.Json.Linq;
-using NpgsqlTypes;
-using Npgsql.LegacyPostgis;
-using System.Linq.Expressions;
-using System.Threading.Tasks;
-using System.ComponentModel.DataAnnotations;
-using System.Threading;
-using System.Data.SqlClient;
-using kwlib;
-using System.Diagnostics;
-using System.IO;
-using System.Text;
-
-namespace FreeSql.Tests
-{
-    public class UnitTest4
-    {
-        [Fact]
-        public void Test04()
-        {
-            g.sqlite.Delete<BaseDistrict>().Where("1=1").ExecuteAffrows();
-            var repo = g.sqlite.GetRepository<VM_District_Child>();
-            repo.DbContextOptions.EnableAddOrUpdateNavigateList = true;
-            repo.DbContextOptions.NoneParameter = true;
-            repo.Insert(new VM_District_Child
-            {
-                Code = "100000",
-                Name = "中国",
-                Childs = new List<VM_District_Child>(new[] {
-                    new VM_District_Child
-                    {
-                        Code = "110000",
-                        Name = "北京市",
-                        Childs = new List<VM_District_Child>(new[] {
-                            new VM_District_Child{ Code="110100", Name = "北京市" },
-                            new VM_District_Child{ Code="110101", Name = "东城区" },
-                        })
-                    }
-                })
-            });
-
-            var t1 = g.sqlite.Select<VM_District_Parent>()
-                .InnerJoin(a => a.ParentCode == a.Parent.Code)
-                .Where(a => a.Code == "110101")
-                .ToList(true);
-            Assert.Single(t1);
-            Assert.Equal("110101", t1[0].Code);
-            Assert.NotNull(t1[0].Parent);
-            Assert.Equal("110000", t1[0].Parent.Code);
-
-            var t2 = g.sqlite.Select<VM_District_Parent>()
-                .InnerJoin(a => a.ParentCode == a.Parent.Code)
-                .InnerJoin(a => a.Parent.ParentCode == a.Parent.Parent.Code)
-                .Where(a => a.Code == "110101")
-                .ToList(true);
-            Assert.Single(t2);
-            Assert.Equal("110101", t2[0].Code);
-            Assert.NotNull(t2[0].Parent);
-            Assert.Equal("110000", t2[0].Parent.Code);
-            Assert.NotNull(t2[0].Parent.Parent);
-            Assert.Equal("100000", t2[0].Parent.Parent.Code);
-
-            var t3 = g.sqlite.Select<VM_District_Child>().ToTreeList();
-            Assert.Single(t3);
-            Assert.Equal("100000", t3[0].Code);
-            Assert.Single(t3[0].Childs);
-            Assert.Equal("110000", t3[0].Childs[0].Code);
-            Assert.Equal(2, t3[0].Childs[0].Childs.Count);
-            Assert.Equal("110100", t3[0].Childs[0].Childs[0].Code);
-            Assert.Equal("110101", t3[0].Childs[0].Childs[1].Code);
-        }
-
-        [Table(Name = "D_District")]
-        public class BaseDistrict
-        {
-            [Column(IsPrimary = true, StringLength = 6)]
-            public string Code { get; set; }
-
-            [Column(StringLength = 20, IsNullable = false)]
-            public string Name { get; set; }
-
-            [Column(StringLength = 6)]
-            public virtual string ParentCode { get; set; }
-        }
-
-        [Table(Name = "D_District", DisableSyncStructure = true)]
-        public class VM_District_Child : BaseDistrict
-        {
-            public override string ParentCode { get => base.ParentCode; set => base.ParentCode = value; }
-
-            [Navigate(nameof(ParentCode))]
-            public List<VM_District_Child> Childs { get; set; }
-        }
-
-        [Table(Name = "D_District", DisableSyncStructure = true)]
-        public class VM_District_Parent : BaseDistrict
-        {
-            public override string ParentCode { get => base.ParentCode; set => base.ParentCode = value; }
-
-            [Navigate(nameof(ParentCode))]
-            public VM_District_Parent Parent { get; set; }
-        }
-    }
-
-}
diff --git a/FreeSql/FreeSql.xml b/FreeSql/FreeSql.xml
index 77e5b1ba..12b3cc3e 100644
--- a/FreeSql/FreeSql.xml
+++ b/FreeSql/FreeSql.xml
@@ -2119,6 +2119,11 @@
             UseSalve 时候的值
             </summary>
         </member>
+        <member name="P:FreeSql.IAdo.Identifier">
+            <summary>
+            唯一标识
+            </summary>
+        </member>
         <member name="M:FreeSql.IAdo.Transaction(System.Action)">
             <summary>
             开启事务（不支持异步），60秒未执行完成（可能）被其他线程事务自动提交
@@ -2276,137 +2281,6 @@
             <param name="parms"></param>
             <returns></returns>
         </member>
-        <member name="M:FreeSql.IAdo.ExecuteReaderAsync(System.Func{System.Data.Common.DbDataReader,System.Threading.Tasks.Task},System.Data.CommandType,System.String,System.Data.Common.DbParameter[])">
-            <summary>
-            查询，若使用读写分离，查询【从库】条件cmdText.StartsWith("SELECT ")，否则查询【主库】
-            </summary>
-            <param name="readerHander"></param>
-            <param name="cmdType"></param>
-            <param name="cmdText"></param>
-            <param name="cmdParms"></param>
-        </member>
-        <member name="M:FreeSql.IAdo.ExecuteReaderAsync(System.Func{System.Data.Common.DbDataReader,System.Threading.Tasks.Task},System.String,System.Object)">
-            <summary>
-            查询，ExecuteReaderAsync(dr => {}, "select * from user where age > ?age", new { age = 25 })
-            </summary>
-            <param name="cmdText"></param>
-            <param name="parms"></param>
-        </member>
-        <member name="M:FreeSql.IAdo.ExecuteArrayAsync(System.Data.CommandType,System.String,System.Data.Common.DbParameter[])">
-            <summary>
-            查询
-            </summary>
-            <param name="cmdText"></param>
-            <param name="cmdParms"></param>
-        </member>
-        <member name="M:FreeSql.IAdo.ExecuteArrayAsync(System.String,System.Object)">
-            <summary>
-            查询，ExecuteArrayAsync("select * from user where age > ?age", new { age = 25 })
-            </summary>
-            <param name="cmdText"></param>
-            <param name="parms"></param>
-            <returns></returns>
-        </member>
-        <member name="M:FreeSql.IAdo.ExecuteDataSetAsync(System.Data.CommandType,System.String,System.Data.Common.DbParameter[])">
-            <summary>
-            查询
-            </summary>
-            <param name="cmdText"></param>
-            <param name="cmdParms"></param>
-        </member>
-        <member name="M:FreeSql.IAdo.ExecuteDataSetAsync(System.String,System.Object)">
-            <summary>
-            查询，ExecuteDataSetAsync("select * from user where age > ?age; select 2", new { age = 25 })
-            </summary>
-            <param name="cmdText"></param>
-            <param name="parms"></param>
-            <returns></returns>
-        </member>
-        <member name="M:FreeSql.IAdo.ExecuteDataTableAsync(System.Data.CommandType,System.String,System.Data.Common.DbParameter[])">
-            <summary>
-            查询
-            </summary>
-            <param name="cmdText"></param>
-            <param name="cmdParms"></param>
-        </member>
-        <member name="M:FreeSql.IAdo.ExecuteDataTableAsync(System.String,System.Object)">
-            <summary>
-            查询，ExecuteDataTableAsync("select * from user where age > ?age", new { age = 25 })
-            </summary>
-            <param name="cmdText"></param>
-            <param name="parms"></param>
-            <returns></returns>
-        </member>
-        <member name="M:FreeSql.IAdo.ExecuteNonQueryAsync(System.Data.CommandType,System.String,System.Data.Common.DbParameter[])">
-            <summary>
-            在【主库】执行
-            </summary>
-            <param name="cmdType"></param>
-            <param name="cmdText"></param>
-            <param name="cmdParms"></param>
-        </member>
-        <member name="M:FreeSql.IAdo.ExecuteNonQueryAsync(System.String,System.Object)">
-            <summary>
-            在【主库】执行，ExecuteNonQueryAsync("delete from user where age > ?age", new { age = 25 })
-            </summary>
-            <param name="cmdText"></param>
-            <param name="parms"></param>
-            <returns></returns>
-        </member>
-        <member name="M:FreeSql.IAdo.ExecuteScalarAsync(System.Data.CommandType,System.String,System.Data.Common.DbParameter[])">
-            <summary>
-            在【主库】执行
-            </summary>
-            <param name="cmdType"></param>
-            <param name="cmdText"></param>
-            <param name="cmdParms"></param>
-        </member>
-        <member name="M:FreeSql.IAdo.ExecuteScalarAsync(System.String,System.Object)">
-            <summary>
-            在【主库】执行，ExecuteScalarAsync("select 1 from user where age > ?age", new { age = 25 })
-            </summary>
-            <param name="cmdText"></param>
-            <param name="parms"></param>
-            <returns></returns>
-        </member>
-        <member name="M:FreeSql.IAdo.QueryAsync``1(System.Data.CommandType,System.String,System.Data.Common.DbParameter[])">
-            <summary>
-            执行SQL返回对象集合，QueryAsync&lt;User&gt;("select * from user where age > ?age", new SqlParameter { ParameterName = "age", Value = 25 })
-            </summary>
-            <typeparam name="T"></typeparam>
-            <param name="cmdType"></param>
-            <param name="cmdText"></param>
-            <param name="cmdParms"></param>
-            <returns></returns>
-        </member>
-        <member name="M:FreeSql.IAdo.QueryAsync``1(System.String,System.Object)">
-            <summary>
-            执行SQL返回对象集合，QueryAsync&lt;User&gt;("select * from user where age > ?age", new { age = 25 })
-            </summary>
-            <typeparam name="T"></typeparam>
-            <param name="cmdText"></param>
-            <param name="parms"></param>
-            <returns></returns>
-        </member>
-        <member name="M:FreeSql.IAdo.QueryAsync``2(System.Data.CommandType,System.String,System.Data.Common.DbParameter[])">
-            <summary>
-            执行SQL返回对象集合，Query&lt;User&gt;("select * from user where age > ?age; select * from address", new SqlParameter { ParameterName = "age", Value = 25 })
-            </summary>
-            <typeparam name="T1"></typeparam>
-            <param name="cmdType"></param>
-            <param name="cmdText"></param>
-            <param name="cmdParms"></param>
-            <returns></returns>
-        </member>
-        <member name="M:FreeSql.IAdo.QueryAsync``2(System.String,System.Object)">
-            <summary>
-            执行SQL返回对象集合，Query&lt;User&gt;("select * from user where age > ?age; select * from address", new { age = 25 })
-            </summary>
-            <typeparam name="T1"></typeparam>
-            <param name="cmdText"></param>
-            <param name="parms"></param>
-            <returns></returns>
-        </member>
         <member name="E:FreeSql.IAop.ParseExpression">
             <summary>
             可自定义解析表达式
@@ -2927,12 +2801,6 @@
             <param name="timeout">超时</param>
             <returns></returns>
         </member>
-        <member name="M:FreeSql.Internal.ObjectPool.IObjectPool`1.GetAsync">
-            <summary>
-            获取资源
-            </summary>
-            <returns></returns>
-        </member>
         <member name="M:FreeSql.Internal.ObjectPool.IObjectPool`1.Return(FreeSql.Internal.ObjectPool.Object{`0},System.Boolean)">
             <summary>
             使用完毕后，归还资源
@@ -3003,12 +2871,6 @@
             </summary>
             <param name="obj">资源对象</param>
         </member>
-        <member name="M:FreeSql.Internal.ObjectPool.IPolicy`1.OnGetAsync(FreeSql.Internal.ObjectPool.Object{`0})">
-            <summary>
-            从对象池获取对象成功的时候触发，通过该方法统计或初始化对象
-            </summary>
-            <param name="obj">资源对象</param>
-        </member>
         <member name="M:FreeSql.Internal.ObjectPool.IPolicy`1.OnReturn(FreeSql.Internal.ObjectPool.Object{`0})">
             <summary>
             归还对象给对象池的时候触发
@@ -3641,4 +3503,167 @@
             </summary>
         </member>
     </members>
+</doc>
+           <returns></returns>
+        </member>
+        <member name="M:System.Linq.Expressions.LambadaExpressionExtensions.Or``5(System.Linq.Expressions.Expression{System.Func{``0,``1,``2,``3,``4,System.Boolean}},System.Linq.Expressions.Expression{System.Func{``0,``1,``2,``3,``4,System.Boolean}})">
+            <summary>
+            使用 or 拼接两个 lambda 表达式
+            </summary>
+            <returns></returns>
+        </member>
+        <member name="M:System.Linq.Expressions.LambadaExpressionExtensions.Or``5(System.Linq.Expressions.Expression{System.Func{``0,``1,``2,``3,``4,System.Boolean}},System.Boolean,System.Linq.Expressions.Expression{System.Func{``0,``1,``2,``3,``4,System.Boolean}})">
+            <summary>
+            使用 or 拼接两个 lambda 表达式
+            </summary>
+            <param name="exp1"></param>
+            <param name="condition">true 时生效</param>
+            <param name="exp2"></param>
+            <returns></returns>
+        </member>
+        <member name="M:System.Linq.Expressions.LambadaExpressionExtensions.Not``5(System.Linq.Expressions.Expression{System.Func{``0,``1,``2,``3,``4,System.Boolean}},System.Boolean)">
+            <summary>
+            将 lambda 表达式取反
+            </summary>
+            <param name="exp"></param>
+            <param name="condition">true 时生效</param>
+            <returns></returns>
+        </member>
+        <member name="M:FreeUtil.NewMongodbId">
+            <summary>
+            生成类似Mongodb的ObjectId有序、不重复Guid
+            </summary>
+            <returns></returns>
+        </member>
+        <member name="M:IFreeSql.Insert``1">
+            <summary>
+            插入数据
+            </summary>
+            <typeparam name="T1"></typeparam>
+            <returns></returns>
+        </member>
+        <member name="M:IFreeSql.Insert``1(``0)">
+            <summary>
+            插入数据，传入实体
+            </summary>
+            <typeparam name="T1"></typeparam>
+            <param name="source"></param>
+            <returns></returns>
+        </member>
+        <member name="M:IFreeSql.Insert``1(``0[])">
+            <summary>
+            插入数据，传入实体数组
+            </summary>
+            <typeparam name="T1"></typeparam>
+            <param name="source"></param>
+            <returns></returns>
+        </member>
+        <member name="M:IFreeSql.Insert``1(System.Collections.Generic.List{``0})">
+            <summary>
+            插入数据，传入实体集合
+            </summary>
+            <typeparam name="T1"></typeparam>
+            <param name="source"></param>
+            <returns></returns>
+        </member>
+        <member name="M:IFreeSql.Insert``1(System.Collections.Generic.IEnumerable{``0})">
+            <summary>
+            插入数据，传入实体集合
+            </summary>
+            <typeparam name="T1"></typeparam>
+            <param name="source"></param>
+            <returns></returns>
+        </member>
+        <member name="M:IFreeSql.Update``1">
+            <summary>
+            修改数据
+            </summary>
+            <typeparam name="T1"></typeparam>
+            <returns></returns>
+        </member>
+        <member name="M:IFreeSql.Update``1(System.Object)">
+            <summary>
+            修改数据，传入动态对象如：主键值 | new[]{主键值1,主键值2} | TEntity1 | new[]{TEntity1,TEntity2} | new{id=1}
+            </summary>
+            <typeparam name="T1"></typeparam>
+            <param name="dywhere">主键值、主键值集合、实体、实体集合、匿名对象、匿名对象集合</param>
+            <returns></returns>
+        </member>
+        <member name="M:IFreeSql.Select``1">
+            <summary>
+            查询数据
+            </summary>
+            <typeparam name="T1"></typeparam>
+            <returns></returns>
+        </member>
+        <member name="M:IFreeSql.Select``1(System.Object)">
+            <summary>
+            查询数据，传入动态对象如：主键值 | new[]{主键值1,主键值2} | TEntity1 | new[]{TEntity1,TEntity2} | new{id=1}
+            </summary>
+            <typeparam name="T1"></typeparam>
+            <param name="dywhere">主键值、主键值集合、实体、实体集合、匿名对象、匿名对象集合</param>
+            <returns></returns>
+        </member>
+        <member name="M:IFreeSql.Delete``1">
+            <summary>
+            删除数据
+            </summary>
+            <typeparam name="T1"></typeparam>
+            <returns></returns>
+        </member>
+        <member name="M:IFreeSql.Delete``1(System.Object)">
+            <summary>
+            删除数据，传入动态对象如：主键值 | new[]{主键值1,主键值2} | TEntity1 | new[]{TEntity1,TEntity2} | new{id=1}
+            </summary>
+            <typeparam name="T1"></typeparam>
+            <param name="dywhere">主键值、主键值集合、实体、实体集合、匿名对象、匿名对象集合</param>
+            <returns></returns>
+        </member>
+        <member name="M:IFreeSql.Transaction(System.Action)">
+            <summary>
+            开启事务（不支持异步），60秒未执行完成（可能）被其他线程事务自动提交
+            </summary>
+            <param name="handler">事务体 () => {}</param>
+        </member>
+        <member name="M:IFreeSql.Transaction(System.TimeSpan,System.Action)">
+            <summary>
+            开启事务（不支持异步）
+            </summary>
+            <param name="timeout">超时，未执行完成（可能）被其他线程事务自动提交</param>
+            <param name="handler">事务体 () => {}</param>
+        </member>
+        <member name="M:IFreeSql.Transaction(System.Data.IsolationLevel,System.TimeSpan,System.Action)">
+            <summary>
+            开启事务（不支持异步）
+            </summary>
+            <param name="isolationLevel"></param>
+            <param name="handler">事务体 () => {}</param>
+            <param name="timeout">超时，未执行完成（可能）被其他线程事务自动提交</param>
+        </member>
+        <member name="P:IFreeSql.Ado">
+            <summary>
+            数据库访问对象
+            </summary>
+        </member>
+        <member name="P:IFreeSql.Aop">
+            <summary>
+            所有拦截方法都在这里
+            </summary>
+        </member>
+        <member name="P:IFreeSql.CodeFirst">
+            <summary>
+            CodeFirst 模式开发相关方法
+            </summary>
+        </member>
+        <member name="P:IFreeSql.DbFirst">
+            <summary>
+            DbFirst 模式开发相关方法
+            </summary>
+        </member>
+        <member name="P:IFreeSql.GlobalFilter">
+            <summary>
+            全局过滤设置，可默认附加为 Select/Update/Delete 条件
+            </summary>
+        </member>
+    </members>
 </doc>
diff --git a/FreeSql/Interface/IAdo.cs b/FreeSql/Interface/IAdo.cs
index 2cb27f7b..b520f690 100644
--- a/FreeSql/Interface/IAdo.cs
+++ b/FreeSql/Interface/IAdo.cs
@@ -32,6 +32,10 @@ namespace FreeSql
         /// UseSalve 时候的值
         /// </summary>
         string[] SlaveConnectionStrings { get; }
+        /// <summary>
+        /// 唯一标识
+        /// </summary>
+        Guid Identifier { get; }
 
         #region 事务
         /// <summary>
diff --git a/FreeSql/Internal/CommonProvider/AdoProvider/AdoProvider.cs b/FreeSql/Internal/CommonProvider/AdoProvider/AdoProvider.cs
index c9c1c962..1d31f146 100644
--- a/FreeSql/Internal/CommonProvider/AdoProvider/AdoProvider.cs
+++ b/FreeSql/Internal/CommonProvider/AdoProvider/AdoProvider.cs
@@ -26,6 +26,7 @@ namespace FreeSql.Internal.CommonProvider
         public DataType DataType { get; }
         public string ConnectionString { get; }
         public string[] SlaveConnectionStrings { get; }
+        public Guid Identifier { get; }
         protected CommonUtils _util { get; set; }
         protected int slaveUnavailables = 0;
         private object slaveLock = new object();
@@ -36,6 +37,7 @@ namespace FreeSql.Internal.CommonProvider
             this.DataType = dataType;
             this.ConnectionString = connectionString;
             this.SlaveConnectionStrings = slaveConnectionStrings;
+            this.Identifier = Guid.NewGuid();
         }
 
         void LoggerException(IObjectPool<DbConnection> pool, PrepareCommandResult pc, Exception ex, DateTime dt, StringBuilder logtxt, bool isThrowException = true)
diff --git a/Providers/FreeSql.Provider.Odbc/Default/OdbcProvider.cs b/Providers/FreeSql.Provider.Odbc/Default/OdbcProvider.cs
index 9406b549..f53e1791 100644
--- a/Providers/FreeSql.Provider.Odbc/Default/OdbcProvider.cs
+++ b/Providers/FreeSql.Provider.Odbc/Default/OdbcProvider.cs
@@ -101,7 +101,7 @@ namespace FreeSql.Odbc.Default
             }
             finally
             {
-                FreeSqlOdbcGlobalExtensions._dicOdbcAdater.TryRemove(this as IFreeSql, out var tryada);
+                FreeSqlOdbcGlobalExtensions._dicOdbcAdater.TryRemove(Ado.Identifier, out var tryada);
             }
         }
     }
@@ -110,7 +110,7 @@ namespace FreeSql.Odbc.Default
 partial class FreeSqlOdbcGlobalExtensions
 {
     internal static OdbcAdapter DefaultOdbcAdapter = new OdbcAdapter();
-    internal static ConcurrentDictionary<IFreeSql, OdbcAdapter> _dicOdbcAdater = new ConcurrentDictionary<IFreeSql, OdbcAdapter>();
-    public static void SetOdbcAdapter(this IFreeSql that, OdbcAdapter adapter) => _dicOdbcAdater.AddOrUpdate(that, adapter, (fsql, old) => adapter);
-    internal static OdbcAdapter GetOdbcAdapter(this IFreeSql that) => _dicOdbcAdater.TryGetValue(that, out var tryada) ? tryada : DefaultOdbcAdapter;
+    internal static ConcurrentDictionary<Guid, OdbcAdapter> _dicOdbcAdater = new ConcurrentDictionary<Guid, OdbcAdapter>();
+    public static void SetOdbcAdapter(this IFreeSql that, OdbcAdapter adapter) => _dicOdbcAdater.AddOrUpdate(that.Ado.Identifier, adapter, (fsql, old) => adapter);
+    internal static OdbcAdapter GetOdbcAdapter(this IFreeSql that) => _dicOdbcAdater.TryGetValue(that.Ado.Identifier, out var tryada) ? tryada : DefaultOdbcAdapter;
 }
diff --git a/Providers/FreeSql.Provider.SqlServer/Curd/SqlServerSelect.cs b/Providers/FreeSql.Provider.SqlServer/Curd/SqlServerSelect.cs
index ccb2d920..459f96f5 100644
--- a/Providers/FreeSql.Provider.SqlServer/Curd/SqlServerSelect.cs
+++ b/Providers/FreeSql.Provider.SqlServer/Curd/SqlServerSelect.cs
@@ -249,7 +249,7 @@ namespace FreeSql.SqlServer.Curd
         #endregion
 
         public SqlServerSelect(IFreeSql orm, CommonUtils commonUtils, CommonExpression commonExpression, object dywhere) : base(orm, commonUtils, commonExpression, dywhere) {
-            if (FreeSqlSqlServerGlobalExtensions._dicSetGlobalSelectWithLock.TryGetValue(orm, out var tryval))
+            if (FreeSqlSqlServerGlobalExtensions._dicSetGlobalSelectWithLock.TryGetValue(orm.Ado.Identifier, out var tryval))
                 this.WithLock(tryval.Item1, tryval.Item2);
         }
         public override ISelect<T1, T2> From<T2>(Expression<Func<ISelectFromExpression<T1>, T2, ISelectFromExpression<T1>>> exp) { this.InternalFrom(exp); var ret = new SqlServerSelect<T1, T2>(_orm, _commonUtils, _commonExpression, null); SqlServerSelect<T1>.CopyData(this, ret, exp?.Parameters); return ret; }
diff --git a/Providers/FreeSql.Provider.SqlServer/SqlServerExtensions.cs b/Providers/FreeSql.Provider.SqlServer/SqlServerExtensions.cs
index 6315b9fe..5fc21290 100644
--- a/Providers/FreeSql.Provider.SqlServer/SqlServerExtensions.cs
+++ b/Providers/FreeSql.Provider.SqlServer/SqlServerExtensions.cs
@@ -39,10 +39,10 @@ public static partial class FreeSqlSqlServerGlobalExtensions
     public static IFreeSql SetGlobalSelectWithLock(this IFreeSql that, SqlServerLock lockType, Dictionary<Type, bool> rule)
     {
         var value = NaviteTuple.Create(lockType, rule);
-        _dicSetGlobalSelectWithLock.AddOrUpdate(that, value, (_, __) => value);
+        _dicSetGlobalSelectWithLock.AddOrUpdate(that.Ado.Identifier, value, (_, __) => value);
         return that;
     }
-    internal static ConcurrentDictionary<IFreeSql, NaviteTuple<SqlServerLock, Dictionary<Type, bool>>> _dicSetGlobalSelectWithLock = new ConcurrentDictionary<IFreeSql, NaviteTuple<SqlServerLock, Dictionary<Type, bool>>>();
+    internal static ConcurrentDictionary<Guid, NaviteTuple<SqlServerLock, Dictionary<Type, bool>>> _dicSetGlobalSelectWithLock = new ConcurrentDictionary<Guid, NaviteTuple<SqlServerLock, Dictionary<Type, bool>>>();
 
     #region ExecuteSqlBulkCopy
     /// <summary>