diff --git a/Src/Asp.Net/SqlServerTest/Demos/2_Update.cs b/Src/Asp.Net/SqlServerTest/Demos/2_Update.cs
index ed22b9b90..6eeac8d1e 100644
--- a/Src/Asp.Net/SqlServerTest/Demos/2_Update.cs
+++ b/Src/Asp.Net/SqlServerTest/Demos/2_Update.cs
@@ -64,7 +64,7 @@ namespace OrmTest.Demo
             t12.Wait();
 
             //update one columns
-            var count = db.Updateable<Student>().UpdateColumns(it => it.SchoolId == it.SchoolId+1).Where(it => it.Id == it.Id+1).ExecuteCommand();
+            var count = db.Updateable<Student>().UpdateColumns(it => it.SchoolId == it.SchoolId).Where(it => it.Id == it.Id+1).ExecuteCommand();
 
 
 
diff --git a/Src/Asp.Net/SqlServerTest/Demos/D_QueryableView.cs b/Src/Asp.Net/SqlServerTest/Demos/D_QueryableView.cs
index 4facf86ca..3aaabe9c7 100644
--- a/Src/Asp.Net/SqlServerTest/Demos/D_QueryableView.cs
+++ b/Src/Asp.Net/SqlServerTest/Demos/D_QueryableView.cs
@@ -7,7 +7,7 @@ using System.Text;
 
 namespace OrmTest.Demo
 {
-    public class D_QueryableViewn : DemoBase
+    public class QueryableView : DemoBase
     {
         public static void Init()
         {
diff --git a/Src/Asp.Net/SqlServerTest/Demos/E_Attribute.cs b/Src/Asp.Net/SqlServerTest/Demos/E_Attribute.cs
new file mode 100644
index 000000000..0e2719f8d
--- /dev/null
+++ b/Src/Asp.Net/SqlServerTest/Demos/E_Attribute.cs
@@ -0,0 +1,29 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using SqlSugar;
+namespace OrmTest.Demo
+{
+    public class AttributeDemo : DemoBase
+    {
+        public static void Init()
+        {
+            var db = GetInstance();
+            AttributeTest a = new AttributeTest()
+            {
+                Name = "attr"
+            };
+            db.Insertable(a).AS("student").ExecuteCommand();
+        }
+
+        public class AttributeTest
+        {
+            [SugarColumn(ColumnName = "Id")]
+            public int Aid { get; set; }
+            public string Name { get; set; }
+            [SugarColumn(IsOnlyIgnoreInsert = true)]
+            public int CreateTime { get; set; }
+        }
+    }
+}
diff --git a/Src/Asp.Net/SqlServerTest/Demos/DemoBase.cs b/Src/Asp.Net/SqlServerTest/Demos/Z_DemoBase.cs
similarity index 100%
rename from Src/Asp.Net/SqlServerTest/Demos/DemoBase.cs
rename to Src/Asp.Net/SqlServerTest/Demos/Z_DemoBase.cs
diff --git a/Src/Asp.Net/SqlServerTest/Program.cs b/Src/Asp.Net/SqlServerTest/Program.cs
index 5061a4745..1f424bdf3 100644
--- a/Src/Asp.Net/SqlServerTest/Program.cs
+++ b/Src/Asp.Net/SqlServerTest/Program.cs
@@ -36,20 +36,21 @@ namespace OrmTest
             new SqlSugarPerformance(100).Select();
 
             /***Demo***/
-            OrmTest.Demo.Query.Init();
-            OrmTest.Demo.Insert.Init();
-            OrmTest.Demo.Delete.Init();
-            OrmTest.Demo.Update.Init();
-            OrmTest.Demo.DbFirst.Init();
-            OrmTest.Demo.JoinSql.Init();
-            OrmTest.Demo.Filter.Init();
-            OrmTest.Demo.ComplexModel.Init();
-            OrmTest.Demo.CodeFirst.Init();
-            OrmTest.Demo.Aop.Init();
-            OrmTest.Demo.MasterSlave.Init();
-            OrmTest.Demo.SharedConnection.Init();
-            OrmTest.Demo.ExtSqlFun.Init();
-            OrmTest.Demo.D_QueryableViewn.Init();
+            Demo.Query.Init();
+            Demo.Insert.Init();
+            Demo.Delete.Init();
+            Demo.Update.Init();
+            Demo.DbFirst.Init();
+            Demo.JoinSql.Init();
+            Demo.Filter.Init();
+            Demo.ComplexModel.Init();
+            Demo.CodeFirst.Init();
+            Demo.Aop.Init();
+            Demo.MasterSlave.Init();
+            Demo.SharedConnection.Init();
+            Demo.ExtSqlFun.Init();
+            Demo.QueryableView.Init();
+            Demo.AttributeDemo.Init();
         }
     }
 }
diff --git a/Src/Asp.Net/SqlServerTest/SqlServerTest.csproj b/Src/Asp.Net/SqlServerTest/SqlServerTest.csproj
index f6b628a58..23f749e69 100644
--- a/Src/Asp.Net/SqlServerTest/SqlServerTest.csproj
+++ b/Src/Asp.Net/SqlServerTest/SqlServerTest.csproj
@@ -57,12 +57,13 @@
     <Compile Include="Demos\9_Aop.cs" />
     <Compile Include="Demos\B_SharedConnection.cs" />
     <Compile Include="Demos\C_ExtSqlFun.cs" />
-    <Compile Include="Demos\DemoBase.cs" />
+    <Compile Include="Demos\Z_DemoBase.cs" />
     <Compile Include="Demos\3_Insert.cs" />
     <Compile Include="Demos\1_Query.cs" />
     <Compile Include="Demos\2_Update.cs" />
     <Compile Include="Demos\A_MasterSlave.cs" />
     <Compile Include="Demos\D_QueryableView.cs" />
+    <Compile Include="Demos\E_Attribute.cs" />
     <Compile Include="Models\DataTestInfo.cs" />
     <Compile Include="Models\DataTestInfo2.cs" />
     <Compile Include="Models\Enum.cs" />
diff --git a/Src/Asp.Net/SqlSugar/Abstract/EntityMaintenance/EntityMaintenance.cs b/Src/Asp.Net/SqlSugar/Abstract/EntityMaintenance/EntityMaintenance.cs
index 3ae9da45b..012805f43 100644
--- a/Src/Asp.Net/SqlSugar/Abstract/EntityMaintenance/EntityMaintenance.cs
+++ b/Src/Asp.Net/SqlSugar/Abstract/EntityMaintenance/EntityMaintenance.cs
@@ -135,6 +135,7 @@ namespace SqlSugar
                         column.DataType = sugarColumn.ColumnDataType;
                         column.DecimalDigits = sugarColumn.DecimalDigits;
                         column.OracleSequenceName = sugarColumn.OracleSequenceName;
+                        column.IsOnlyIgnoreInsert = sugarColumn.IsOnlyIgnoreInsert;
                     }
                     else
                     {
diff --git a/Src/Asp.Net/SqlSugar/Entities/EntityColumnInfo.cs b/Src/Asp.Net/SqlSugar/Entities/EntityColumnInfo.cs
index 3fd7d3f3b..962ea2264 100644
--- a/Src/Asp.Net/SqlSugar/Entities/EntityColumnInfo.cs
+++ b/Src/Asp.Net/SqlSugar/Entities/EntityColumnInfo.cs
@@ -25,5 +25,6 @@ namespace SqlSugar
         public string DataType { get; set; }
         public int DecimalDigits { get; set; }
         public string OracleSequenceName { get; set; }
+        public bool IsOnlyIgnoreInsert { get; set; }
     }
 }
diff --git a/Src/Asp.Net/SqlSugar/Entities/Mapping/SugarMappingAttribute.cs b/Src/Asp.Net/SqlSugar/Entities/Mapping/SugarMappingAttribute.cs
index 8aa03c482..b9200945f 100644
--- a/Src/Asp.Net/SqlSugar/Entities/Mapping/SugarMappingAttribute.cs
+++ b/Src/Asp.Net/SqlSugar/Entities/Mapping/SugarMappingAttribute.cs
@@ -98,6 +98,13 @@ namespace SqlSugar
             get { return _OracleSequenceName; }
             set { _OracleSequenceName = value; }
         }
+
+        private bool _IsOnlyIgnoreInsert;
+        public bool IsOnlyIgnoreInsert
+        {
+            get { return _IsOnlyIgnoreInsert; }
+            set { _IsOnlyIgnoreInsert = value; }
+        }
     }
 
 }