nullable<enum> insert null

Src/Asp.Net/SqlServerTest/SqlServerTest.csproj

@@ -78,6 +78,7 @@
     <Compile Include="Demo\Demo0_SqlSugarClient.cs" />
     <Compile Include="Models\ViewOrder.cs" />
     <Compile Include="UnitTest\Test01.cs" />
+    <Compile Include="UnitTest\UEnum.cs" />
     <Compile Include="UnitTest\UInsert.cs" />
     <Compile Include="UnitTest\UQueryable2.cs" />
     <Compile Include="UnitTest\UQueue.cs" />

Src/Asp.Net/SqlServerTest/UnitTest/Main.cs

@@ -31,6 +31,7 @@ namespace OrmTest
         }
         public static void Init()
         {
+            Enum();
             Tran();
             Insert();
             Queue();

Src/Asp.Net/SqlServerTest/UnitTest/UEnum.cs

@@ -0,0 +1,44 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace OrmTest
+{
+    public partial class NewUnitTest
+    {
+        public static void Enum()
+        {
+            Db.CodeFirst.InitTables<Unit00Z11C12>();
+            Db.Insertable(new Unit00Z11C12() { type = UnitType.a, type2 = null }).ExecuteCommand();
+            var x=Db.Queryable<Unit00Z11C12>().Select(it=>new {
+                x=it.type,
+                x2=it.type2
+            }).ToList();
+
+            var x2 = Db.Queryable<Unit00Z11C12>().ToList();
+            Db.Updateable<Unit00Z11C12>().SetColumns(it => it.type2 == UnitType.b)
+                .Where(it=>true).ExecuteCommand();
+            var x3 = Db.Queryable<Unit00Z11C12>().ToList();
+            foreach (var item in x3)
+            {
+                item.type2 = null;
+            }
+            Db.Updateable<Unit00Z11C12>(x3).WhereColumns(it=>it.type).ExecuteCommand();
+            var x4 = Db.Queryable<Unit00Z11C12>().ToList();
+        }
+        public class Unit00Z11C12
+        {
+            [SqlSugar.SugarColumn(ColumnDataType = "int", IsNullable = false)]
+            public UnitType type { get; set; }
+            [SqlSugar.SugarColumn(ColumnDataType ="int",IsNullable =true)]
+            public UnitType? type2 { get; set; }
+        }
+        public enum UnitType {
+             a=-1,
+             b=2,
+             c=3
+        }
+    }
+}

Src/Asp.Net/SqlSugar/Abstract/InsertableProvider/InsertableProvider.cs

@@ -475,7 +475,7 @@ namespace SqlSugar
                 {
                     columnInfo.IsArray = true;
                 }
-                if (columnInfo.PropertyType.IsEnum())
+                if (columnInfo.PropertyType.IsEnum()&& columnInfo.Value!=null)
                 {
                     columnInfo.Value = Convert.ToInt64(columnInfo.Value);
                 }

Src/Asp.Net/SqlSugar/Abstract/UpdateProvider/UpdateableProvider.cs

@@ -425,7 +425,7 @@ namespace SqlSugar
                     PropertyType = UtilMethods.GetUnderType(column.PropertyInfo),
                     TableId = i
                 };
-                if (columnInfo.PropertyType.IsEnum())
+                if (columnInfo.PropertyType.IsEnum()&& columnInfo.Value!=null)
                 {
                     columnInfo.Value = Convert.ToInt64(columnInfo.Value);
                 }