diff --git a/Src/Asp.Net/SqlServerTest/Demo/Demo0_SqlSugarClient.cs b/Src/Asp.Net/SqlServerTest/Demo/Demo0_SqlSugarClient.cs
index a63e7abc8..c0aec6c76 100644
--- a/Src/Asp.Net/SqlServerTest/Demo/Demo0_SqlSugarClient.cs
+++ b/Src/Asp.Net/SqlServerTest/Demo/Demo0_SqlSugarClient.cs
@@ -278,35 +278,35 @@ namespace OrmTest
             // Example 3
             Console.WriteLine("Example 3");
 
-            var result2 = db.UseTranAsync(() =>
-            {
+            //var result2 = db.UseTranAsync(() =>
+            //{
 
-                db.ChangeDatabase(it => it.DbType == DbType.SqlServer);//use sqlserver
-                db.Deleteable<Order>().ExecuteCommand();
-                Console.WriteLine("---Delete all " + db.CurrentConnectionConfig.DbType);
-                Console.WriteLine(db.Queryable<Order>().Count());
+            //    db.ChangeDatabase(it => it.DbType == DbType.SqlServer);//use sqlserver
+            //    db.Deleteable<Order>().ExecuteCommand();
+            //    Console.WriteLine("---Delete all " + db.CurrentConnectionConfig.DbType);
+            //    Console.WriteLine(db.Queryable<Order>().Count());
 
-                db.ChangeDatabase(it => it.DbType == DbType.MySql);//use mysql
-                db.Deleteable<Order>().ExecuteCommand();
-                Console.WriteLine("---Delete all " + db.CurrentConnectionConfig.DbType);
-                Console.WriteLine(db.Queryable<Order>().Count());
-                throw new Exception("");
+            //    db.ChangeDatabase(it => it.DbType == DbType.MySql);//use mysql
+            //    db.Deleteable<Order>().ExecuteCommand();
+            //    Console.WriteLine("---Delete all " + db.CurrentConnectionConfig.DbType);
+            //    Console.WriteLine(db.Queryable<Order>().Count());
+            //    throw new Exception("");
 
-            });
-            result2.Wait();
-            if (result.IsSuccess == false)
-            {
-                Console.WriteLine("---Roll back");
-                db.ChangeDatabase(it => it.DbType == DbType.SqlServer);//use sqlserver
-                Console.WriteLine(db.CurrentConnectionConfig.DbType);
-                Console.WriteLine(db.Queryable<Order>().Count());
+            //});
+            //result2.Wait();
+            //if (result.IsSuccess == false)
+            //{
+            //    Console.WriteLine("---Roll back");
+            //    db.ChangeDatabase(it => it.DbType == DbType.SqlServer);//use sqlserver
+            //    Console.WriteLine(db.CurrentConnectionConfig.DbType);
+            //    Console.WriteLine(db.Queryable<Order>().Count());
 
-                db.ChangeDatabase(it => it.DbType == DbType.MySql);//use mysql
-                Console.WriteLine(db.CurrentConnectionConfig.DbType);
-                Console.WriteLine(db.Queryable<Order>().Count());
-            }
+            //    db.ChangeDatabase(it => it.DbType == DbType.MySql);//use mysql
+            //    Console.WriteLine(db.CurrentConnectionConfig.DbType);
+            //    Console.WriteLine(db.Queryable<Order>().Count());
+            //}
 
-            Console.WriteLine("#### Distributed TransactionExample End ####");
+            //Console.WriteLine("#### Distributed TransactionExample End ####");
         }
     }
 
diff --git a/Src/Asp.Net/SqlSugar/Infrastructure/SqlSugarEngine_Part2.cs b/Src/Asp.Net/SqlSugar/Infrastructure/SqlSugarEngine_Part2.cs
index 8a9380474..fc8dbdc2a 100644
--- a/Src/Asp.Net/SqlSugar/Infrastructure/SqlSugarEngine_Part2.cs
+++ b/Src/Asp.Net/SqlSugar/Infrastructure/SqlSugarEngine_Part2.cs
@@ -22,18 +22,6 @@ namespace SqlSugar
                 _Context = value;
             }
         }
-        internal SqlSugarEngine ContextAsync
-        {
-            get
-            {
-                _ContextAsync = this;
-                return _ContextAsync;
-            }
-            set
-            {
-                _ContextAsync = value;
-            }
-        }
 
         public ConnectionConfig CurrentConnectionConfig { get; set; }
         public Dictionary<string, object> TempItems { get { if (_TempItems == null) { _TempItems = new Dictionary<string, object>(); }  return _TempItems; } set=>_TempItems=value; }
@@ -53,7 +41,6 @@ namespace SqlSugar
         public QueueList _Queues;
         protected ISqlBuilder _SqlBuilder;
         protected ISqlSugarClient _Context { get; set; }
-        protected SqlSugarEngine _ContextAsync { get; set; }
         protected EntityMaintenance _EntityProvider;
         protected IAdo _Ado;
         protected ILambdaExpressions _LambdaExpressions;