diff --git a/FreeSql.DbContext/FreeSql.DbContext.xml b/FreeSql.DbContext/FreeSql.DbContext.xml
index 743835e4..d198eb6c 100644
--- a/FreeSql.DbContext/FreeSql.DbContext.xml
+++ b/FreeSql.DbContext/FreeSql.DbContext.xml
@@ -130,13 +130,6 @@
             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
@@ -483,7 +476,7 @@
         </member>
         <member name="M:FreeSqlDbContextExtensions.NoTracking``1(FreeSql.ISelect{``0})">
             <summary>
-            不跟踪查询的实体数据（在不需要更新其数据时使用），可提长查询性能
+            不跟踪查询的实体数据（在不需要更新其数据时使用），可提升查询性能
             </summary>
             <typeparam name="T"></typeparam>
             <param name="select"></param>
@@ -532,14 +525,5 @@
             <param name="that"></param>
             <returns></returns>
         </member>
-        <member name="M:Microsoft.Extensions.DependencyInjection.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>
     </members>
 </doc>
diff --git a/FreeSql.Tests/FreeSql.Tests/UnitTest3.cs b/FreeSql.Tests/FreeSql.Tests/UnitTest3.cs
index 003bd4d2..2898efc6 100644
--- a/FreeSql.Tests/FreeSql.Tests/UnitTest3.cs
+++ b/FreeSql.Tests/FreeSql.Tests/UnitTest3.cs
@@ -156,18 +156,18 @@ namespace FreeSql.Tests
             }
         }
 
-        class testInsertNullable
-        {
-            [Column(IsNullable = false, IsIdentity = true)]
-            public long Id { get; set; }
+class testInsertNullable
+{
+    [Column(IsNullable = false, IsIdentity = true)]
+    public long Id { get; set; }
 
-            [Column(IsNullable = false)]
-            public string str1 { get; set; }
-            [Column(IsNullable = false)]
-            public int? int1 { get; set; }
-            [Column(IsNullable = true)]
-            public int int2 { get; set; }
-        }
+    [Column(IsNullable = false)]
+    public string str1 { get; set; }
+    [Column(IsNullable = false)]
+    public int? int1 { get; set; }
+    [Column(IsNullable = true)]
+    public int int2 { get; set; }
+}
 
         class testUpdateNonePk
         {
@@ -177,6 +177,12 @@ namespace FreeSql.Tests
         [Fact]
         public void Test03()
         {
+            var updateSql = g.sqlite.Update<object>()
+                .AsType(typeof(testInsertNullable))
+                .SetDto(new { str1 = "xxx" })
+                .WhereDynamic(1)
+                .ToSql();
+
             var sqlextMax112 = g.sqlserver.Select<EdiItem>()
                 .GroupBy(a => a.Id)
                 .ToSql(a => new
diff --git a/FreeSql/Internal/CommonUtils.cs b/FreeSql/Internal/CommonUtils.cs
index 6b8f85d0..0bcd1bbd 100644
--- a/FreeSql/Internal/CommonUtils.cs
+++ b/FreeSql/Internal/CommonUtils.cs
@@ -333,7 +333,10 @@ namespace FreeSql.Internal
                 var psidx = 0;
                 foreach (var p in ps)
                 {
-                    if (table.Columns.TryGetValue(p.Name, out var trycol) == false) continue;
+                    table.Columns.TryGetValue(p.Name, out var trycol);
+                    if (trycol == null) table.ColumnsByCs.TryGetValue(p.Name, out trycol);
+                    if (trycol == null) continue;
+
                     if (psidx > 0) sb.Append(" AND ");
                     sb.Append(aliasAndDot).Append(this.QuoteSqlName(trycol.Attribute.Name));
                     sb.Append(this.FormatSql(" = {0}", Utils.GetDataReaderValue(trycol.Attribute.MapType, p.GetValue(dywhere, null))));