diff --git a/SqlServerTest/Demos/ComplexModel.cs b/SqlServerTest/Demos/ComplexModel.cs
index 9500de3ef..905786bc3 100644
--- a/SqlServerTest/Demos/ComplexModel.cs
+++ b/SqlServerTest/Demos/ComplexModel.cs
@@ -12,7 +12,7 @@ namespace OrmTest.Demo
         public static void Init()
         {
             var db = GetInstance();
-            var student = db.Queryable<CMStudent>().ToList();
+            var students = db.Queryable<CMStudent>().ToList();
         }
     }
 
@@ -23,12 +23,24 @@ namespace OrmTest.Demo
         public string Name { get; set; }
         public int SchoolId { get; set; }
 
+        [SugarColumn(IsIgnore = true)]
+        public string SchoolName
+        {
+            get
+            {
+                if (this.SchoolSingle != null)
+                    return this.SchoolSingle.Name;
+                else
+                    return null;
+            }
+        }
+
         [SugarColumn(IsIgnore = true)]
         public CMSchool SchoolSingle
         {
             get
             {
-                return base.CreateMapping<CMSchool>().Single(it => it.Id == this.Id);
+                return base.CreateMapping<CMSchool>().Single(it => it.Id == this.SchoolId);
             }
         }
 
@@ -37,7 +49,7 @@ namespace OrmTest.Demo
         {
             get
             {
-                return base.CreateMapping<CMSchool>().Where(it => it.Id == this.Id).ToList();
+                return base.CreateMapping<CMSchool>().Where(it => it.Id == this.SchoolId).ToList();
             }
         }
     }
diff --git a/SqlServerTest/Program.cs b/SqlServerTest/Program.cs
index caafd709e..060854168 100644
--- a/SqlServerTest/Program.cs
+++ b/SqlServerTest/Program.cs
@@ -17,31 +17,31 @@ namespace OrmTest
     {
         static void Main(string[] args)
         {
-            /***Unit Test***/
-            new Field(1).Init();
-            new Where(1).Init();
-            new Method(1).Init();
-            new JoinQuery(1).Init();
-            new SingleQuery(1).Init();
-            new SelectQuery(1).Init();
-            new AutoClose(1).Init();
-            new Insert(1).Init();
-            new Delete(1).Init();
-            new Update(1).Init();
-            new Mapping(1).Init();
-            new DataTest(1).Init();
-            /***Performance Test***/
-            new SqlSugarPerformance(100).Select();
+            ///***Unit Test***/
+            //new Field(1).Init();
+            //new Where(1).Init();
+            //new Method(1).Init();
+            //new JoinQuery(1).Init();
+            //new SingleQuery(1).Init();
+            //new SelectQuery(1).Init();
+            //new AutoClose(1).Init();
+            //new Insert(1).Init();
+            //new Delete(1).Init();
+            //new Update(1).Init();
+            //new Mapping(1).Init();
+            //new DataTest(1).Init();
+            ///***Performance Test***/
+            //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.MaterSlave.Init();
+            ///***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.MaterSlave.Init();
             OrmTest.Demo.ComplexModel.Init();
         }
     }
diff --git a/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs b/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs
index a5f2e43dd..cf9916d27 100644
--- a/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs
+++ b/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs
@@ -504,20 +504,39 @@ namespace SqlSugar
             List<TResult> result = null;
             var sqlObj = this.ToSql();
             var isComplexModel = QueryBuilder.IsComplexModel(sqlObj.Key);
+            var entityType = typeof(TResult);
             using (var dataReader = this.Db.GetDataReader(sqlObj.Key, sqlObj.Value.ToArray()))
             {
-                var tType = typeof(TResult);
-                if (tType.IsAnonymousType() || isComplexModel)
+                if (entityType.IsAnonymousType() || isComplexModel)
                 {
                     result = this.Context.RewritableMethods.DataReaderToDynamicList<TResult>(dataReader);
                 }
                 else
                 {
-                    result = this.Bind.DataReaderToList<TResult>(tType, dataReader, QueryBuilder.SelectCacheKey);
+                    result = this.Bind.DataReaderToList<TResult>(entityType, dataReader, QueryBuilder.SelectCacheKey);
                 }
                 if (this.Context.CurrentConnectionConfig.IsAutoCloseConnection) this.Context.Close();
             }
             RestoreMapping();
+            if (result.IsValuable())
+            {
+                if (entityType.BaseType.IsValuable() && entityType.BaseType == PubConst.ModelType)
+                {
+                    foreach (var item in result)
+                    {
+                       var contextProperty=item.GetType().GetProperty("Context");
+                        ConnectionConfig config = new ConnectionConfig();
+                        config =this.Context.CurrentConnectionConfig;
+                        var newClient = new SqlSugarClient(config);
+                        newClient.MappingColumns = this.Context.MappingColumns;
+                        newClient.MappingTables = this.Context.MappingTables;
+                        newClient.IgnoreColumns = this.Context.IgnoreColumns;
+                        newClient.Ado.MasterConnectionConfig = this.Context.Ado.MasterConnectionConfig;
+                        newClient.Ado.SlaveConnectionConfigs = this.Context.Ado.SlaveConnectionConfigs;
+                        contextProperty.SetValue(item, newClient, null);
+                    }
+                }
+            }
             return result;
         }
         protected List<string> GetPrimaryKeys()
diff --git a/SqlSugar/Common/PubConst.cs b/SqlSugar/Common/PubConst.cs
index 3980de698..523a0b2f8 100644
--- a/SqlSugar/Common/PubConst.cs
+++ b/SqlSugar/Common/PubConst.cs
@@ -17,7 +17,8 @@ namespace SqlSugar
         internal static Type ByteArrayType = typeof(byte[]);
         internal static Type BoolType = typeof(bool);
         internal static Type ObjType = typeof(object);
-        internal static Type Dob = typeof(double);
+        internal static Type DobType = typeof(double);
+        internal static Type ModelType= typeof(ModelContext);
         internal static Type DicSS = typeof(KeyValuePair<string, string>);
         internal static Type DicSi = typeof(KeyValuePair<string, int>);
         internal static Type Dicii = typeof(KeyValuePair<int, int>);
diff --git a/SqlSugar/Common/RewritableMethods.cs b/SqlSugar/Common/RewritableMethods.cs
index fff2e0d92..0a359ac3d 100644
--- a/SqlSugar/Common/RewritableMethods.cs
+++ b/SqlSugar/Common/RewritableMethods.cs
@@ -89,7 +89,7 @@ namespace SqlSugar
                                 var addValue = readerValues[name];
                                 if (addValue == DBNull.Value)
                                 {
-                                    if (item.PropertyType.IsIn(PubConst.IntType, PubConst.DecType, PubConst.Dob, PubConst.ByteType))
+                                    if (item.PropertyType.IsIn(PubConst.IntType, PubConst.DecType, PubConst.DobType, PubConst.ByteType))
                                     {
                                         addValue = 0;
                                     }
diff --git a/SqlSugar/Entities/ModelContext.cs b/SqlSugar/Entities/ModelContext.cs
index dfa6d6271..32ec11834 100644
--- a/SqlSugar/Entities/ModelContext.cs
+++ b/SqlSugar/Entities/ModelContext.cs
@@ -7,10 +7,14 @@ namespace SqlSugar
 {
     public class ModelContext
     {
-        internal SqlSugarClient Context { get; set; }
-        public ISugarQueryable<T> CreateMapping<T>()where T:class,new()
+        [SugarColumn(IsIgnore = true)]
+        public SqlSugarClient Context { get; set; }
+        public ISugarQueryable<T> CreateMapping<T>() where T : class, new()
         {
-            return Context.Queryable<T>();
+            using (Context)
+            {
+                return Context.Queryable<T>();
+            }
         }
     }
 }
diff --git a/SqlSugar/SqlSugarClient.cs b/SqlSugar/SqlSugarClient.cs
index 257393fc6..391bdc26b 100644
--- a/SqlSugar/SqlSugarClient.cs
+++ b/SqlSugar/SqlSugarClient.cs
@@ -98,6 +98,7 @@ namespace SqlSugar
         /// </summary>
         public virtual ISugarQueryable<T> Queryable<T>() where T : class, new()
         {
+
             InitMppingInfo<T>();
             var result = base.CreateQueryable<T>();
             return result;