diff --git a/Examples/base_entity_net45/App.config b/Examples/base_entity_net45/App.config
new file mode 100644
index 00000000..88fa4027
--- /dev/null
+++ b/Examples/base_entity_net45/App.config
@@ -0,0 +1,6 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/Examples/base_entity_net45/BaseEntitySync.cs b/Examples/base_entity_net45/BaseEntitySync.cs
new file mode 100644
index 00000000..112c26b1
--- /dev/null
+++ b/Examples/base_entity_net45/BaseEntitySync.cs
@@ -0,0 +1,153 @@
+using FreeSql;
+using FreeSql.DataAnnotations;
+using Newtonsoft.Json;
+using System;
+using System.Data;
+using System.Diagnostics;
+using System.Linq.Expressions;
+using System.Threading;
+using System.Threading.Tasks;
+
+[Table(DisableSyncStructure = true)]
+public abstract class BaseEntity
+{
+ private static Lazy _ormLazy = new Lazy(() =>
+ {
+ var orm = new FreeSqlBuilder()
+ .UseAutoSyncStructure(true)
+ .UseNoneCommandParameter(true)
+ .UseConnectionString(DataType.Sqlite, "data source=test.db;max pool size=5")
+ //.UseConnectionString(FreeSql.DataType.MySql, "Data Source=127.0.0.1;Port=3306;User ID=root;Password=root;Initial Catalog=cccddd;Charset=utf8;SslMode=none;Max pool size=2")
+ //.UseConnectionString(FreeSql.DataType.PostgreSQL, "Host=192.168.164.10;Port=5432;Username=postgres;Password=123456;Database=tedb;Pooling=true;Maximum Pool Size=2")
+ //.UseConnectionString(FreeSql.DataType.SqlServer, "Data Source=.;Integrated Security=True;Initial Catalog=freesqlTest;Pooling=true;Max Pool Size=2")
+ //.UseConnectionString(FreeSql.DataType.Oracle, "user id=user1;password=123456;data source=//127.0.0.1:1521/XE;Pooling=true;Max Pool Size=2")
+ .Build();
+ orm.Aop.CurdBefore += (s, e) => Trace.WriteLine(e.Sql + "\r\n");
+ return orm;
+ });
+ public static IFreeSql Orm => _ormLazy.Value;
+
+ ///
+ /// 创建时间
+ ///
+ public DateTime CreateTime { get; set; }
+ ///
+ /// 更新时间
+ ///
+ public DateTime UpdateTime { get; set; }
+ ///
+ /// 逻辑删除
+ ///
+ public bool IsDeleted { get; set; }
+}
+
+[Table(DisableSyncStructure = true)]
+public abstract class BaseEntity : BaseEntity where TEntity : class
+{
+ public static ISelect Select => Orm.Select()
+ .WhereCascade(a => (a as BaseEntity).IsDeleted == false);
+ public static ISelect Where(Expression> exp) => Select.Where(exp);
+ public static ISelect WhereIf(bool condition, Expression> exp) => Select.WhereIf(condition, exp);
+
+ [JsonIgnore]
+ protected IBaseRepository Repository { get; set; }
+
+ bool UpdateIsDeleted(bool value)
+ {
+ if (this.Repository == null)
+ return Orm.Update(this as TEntity)
+ .Set(a => (a as BaseEntity).IsDeleted, this.IsDeleted = value).ExecuteAffrows() == 1;
+
+ this.IsDeleted = value;
+ return this.Repository.Update(this as TEntity) == 1;
+ }
+ ///
+ /// 删除数据
+ ///
+ ///
+ public virtual bool Delete() => this.UpdateIsDeleted(true);
+ ///
+ /// 恢复删除的数据
+ ///
+ ///
+ public virtual bool Restore() => this.UpdateIsDeleted(false);
+
+ ///
+ /// 附加实体，在更新数据时，只更新变化的部分
+ ///
+ public TEntity Attach()
+ {
+ if (this.Repository == null)
+ this.Repository = Orm.GetRepository();
+
+ var item = this as TEntity;
+ this.Repository.Attach(item);
+ return item;
+ }
+ ///
+ /// 更新数据
+ ///
+ ///
+ public virtual bool Update()
+ {
+ this.UpdateTime = DateTime.Now;
+ if (this.Repository == null)
+ return Orm.Update()
+ .SetSource(this as TEntity).ExecuteAffrows() == 1;
+
+ return this.Repository.Update(this as TEntity) == 1;
+ }
+ ///
+ /// 插入数据
+ ///
+ public virtual TEntity Insert()
+ {
+ this.CreateTime = DateTime.Now;
+ if (this.Repository == null)
+ this.Repository = Orm.GetRepository();
+
+ return this.Repository.Insert(this as TEntity);
+ }
+
+ ///
+ /// 更新或插入
+ ///
+ ///
+ public virtual TEntity Save()
+ {
+ this.UpdateTime = DateTime.Now;
+ if (this.Repository == null)
+ this.Repository = Orm.GetRepository();
+
+ return this.Repository.InsertOrUpdate(this as TEntity);
+ }
+}
+
+[Table(DisableSyncStructure = true)]
+public abstract class BaseEntity : BaseEntity where TEntity : class
+{
+ static BaseEntity()
+ {
+ var tkeyType = typeof(TKey)?.NullableTypeOrThis();
+ if (tkeyType == typeof(int) || tkeyType == typeof(long))
+ Orm.CodeFirst.ConfigEntity(typeof(TEntity),
+ t => t.Property("Id").IsIdentity(true));
+ }
+
+ ///
+ /// 主键
+ ///
+ public virtual TKey Id { get; set; }
+
+ ///
+ /// 根据主键值获取数据
+ ///
+ ///
+ ///
+ public static TEntity Find(TKey id)
+ {
+ var item = Select.WhereDynamic(id).First();
+ (item as BaseEntity)?.Attach();
+ return item;
+ }
+}
\ No newline at end of file
diff --git a/Examples/base_entity_net45/Program.cs b/Examples/base_entity_net45/Program.cs
new file mode 100644
index 00000000..468b7804
--- /dev/null
+++ b/Examples/base_entity_net45/Program.cs
@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace base_entity_net45
+{
+ class Program
+ {
+ static void Main(string[] args)
+ {
+ }
+ }
+}
diff --git a/Examples/base_entity_net45/Properties/AssemblyInfo.cs b/Examples/base_entity_net45/Properties/AssemblyInfo.cs
new file mode 100644
index 00000000..6fa2e439
--- /dev/null
+++ b/Examples/base_entity_net45/Properties/AssemblyInfo.cs
@@ -0,0 +1,36 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// 有关程序集的一般信息由以下
+// 控制。更改这些特性值可修改
+// 与程序集关联的信息。
+[assembly: AssemblyTitle("base_entity_net45")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("base_entity_net45")]
+[assembly: AssemblyCopyright("Copyright © 2019")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// 将 ComVisible 设置为 false 会使此程序集中的类型
+//对 COM 组件不可见。如果需要从 COM 访问此程序集中的类型
+//请将此类型的 ComVisible 特性设置为 true。
+[assembly: ComVisible(false)]
+
+// 如果此项目向 COM 公开，则下列 GUID 用于类型库的 ID
+[assembly: Guid("7e091544-ec38-4a41-a3be-bdc693070be7")]
+
+// 程序集的版本信息由下列四个值组成:
+//
+// 主版本
+// 次版本
+// 生成号
+// 修订号
+//
+// 可以指定所有值，也可以使用以下所示的 "*" 预置版本号和修订号
+// 方法是按如下所示使用“*”: :
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]
diff --git a/Examples/base_entity_net45/base_entity_net45.csproj b/Examples/base_entity_net45/base_entity_net45.csproj
new file mode 100644
index 00000000..474dc221
--- /dev/null
+++ b/Examples/base_entity_net45/base_entity_net45.csproj
@@ -0,0 +1,73 @@
+
+
+
+
+ Debug
+ AnyCPU
+ {7E091544-EC38-4A41-A3BE-BDC693070BE7}
+ Exe
+ base_entity_net45
+ base_entity_net45
+ v4.5.2
+ 512
+ true
+ true
+
+
+ AnyCPU
+ true
+ full
+ false
+ bin\Debug\
+ DEBUG;TRACE
+ prompt
+ 4
+
+
+ AnyCPU
+ pdbonly
+ true
+ bin\Release\
+ TRACE
+ prompt
+ 4
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ {82885c27-23c8-4a6e-92cf-80fe61a041e1}
+ FreeSql.DbContext
+
+
+ {af9c50ec-6eb6-494b-9b3b-7edba6fd0ebb}
+ FreeSql
+
+
+ {559b6369-1868-4a06-a590-f80ba7b80a1b}
+ FreeSql.Provider.Sqlite
+
+
+
+
+ 12.0.2
+
+
+
+
\ No newline at end of file
diff --git a/FreeSql.sln b/FreeSql.sln
index 749a39d2..868aa88e 100644
--- a/FreeSql.sln
+++ b/FreeSql.sln
@@ -54,7 +54,9 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "FreeSql.Tests.PerformanceTe
EndProject
Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "FreeSql.Tests.Provider.MySqlConnector", "FreeSql.Tests\FreeSql.Tests.Provider.MySqlConnector\FreeSql.Tests.Provider.MySqlConnector.csproj", "{0F45294A-34FF-4FB8-A046-20E09E3A4D5C}"
EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "base_entity", "Examples\base_entity\base_entity.csproj", "{D3A1869C-A8DE-46D0-8587-89EBBE3E4DD0}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "base_entity", "Examples\base_entity\base_entity.csproj", "{D3A1869C-A8DE-46D0-8587-89EBBE3E4DD0}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "base_entity_net45", "Examples\base_entity_net45\base_entity_net45.csproj", "{7E091544-EC38-4A41-A3BE-BDC693070BE7}"
EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -318,6 +320,18 @@ Global
{D3A1869C-A8DE-46D0-8587-89EBBE3E4DD0}.Release|x64.Build.0 = Release|Any CPU
{D3A1869C-A8DE-46D0-8587-89EBBE3E4DD0}.Release|x86.ActiveCfg = Release|Any CPU
{D3A1869C-A8DE-46D0-8587-89EBBE3E4DD0}.Release|x86.Build.0 = Release|Any CPU
+ {7E091544-EC38-4A41-A3BE-BDC693070BE7}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+ {7E091544-EC38-4A41-A3BE-BDC693070BE7}.Debug|Any CPU.Build.0 = Debug|Any CPU
+ {7E091544-EC38-4A41-A3BE-BDC693070BE7}.Debug|x64.ActiveCfg = Debug|Any CPU
+ {7E091544-EC38-4A41-A3BE-BDC693070BE7}.Debug|x64.Build.0 = Debug|Any CPU
+ {7E091544-EC38-4A41-A3BE-BDC693070BE7}.Debug|x86.ActiveCfg = Debug|Any CPU
+ {7E091544-EC38-4A41-A3BE-BDC693070BE7}.Debug|x86.Build.0 = Debug|Any CPU
+ {7E091544-EC38-4A41-A3BE-BDC693070BE7}.Release|Any CPU.ActiveCfg = Release|Any CPU
+ {7E091544-EC38-4A41-A3BE-BDC693070BE7}.Release|Any CPU.Build.0 = Release|Any CPU
+ {7E091544-EC38-4A41-A3BE-BDC693070BE7}.Release|x64.ActiveCfg = Release|Any CPU
+ {7E091544-EC38-4A41-A3BE-BDC693070BE7}.Release|x64.Build.0 = Release|Any CPU
+ {7E091544-EC38-4A41-A3BE-BDC693070BE7}.Release|x86.ActiveCfg = Release|Any CPU
+ {7E091544-EC38-4A41-A3BE-BDC693070BE7}.Release|x86.Build.0 = Release|Any CPU
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
@@ -337,6 +351,7 @@ Global
{690F89E0-A721-423F-8F5D-D262F73235EA} = {94C8A78D-AA15-47B2-A348-530CD86BFC1B}
{4C0973CB-BD49-4A5B-A6FE-EE0594BDD513} = {94C8A78D-AA15-47B2-A348-530CD86BFC1B}
{D3A1869C-A8DE-46D0-8587-89EBBE3E4DD0} = {94C8A78D-AA15-47B2-A348-530CD86BFC1B}
+ {7E091544-EC38-4A41-A3BE-BDC693070BE7} = {94C8A78D-AA15-47B2-A348-530CD86BFC1B}
EndGlobalSection
GlobalSection(ExtensibilityGlobals) = postSolution
SolutionGuid = {089687FD-5D25-40AB-BA8A-A10D1E137F98}