diff --git a/Src/Asp.Net/PgSqlTest/Demo/Demo1_Queryable.cs b/Src/Asp.Net/PgSqlTest/Demo/Demo1_Queryable.cs
index 1f4a9514d..5795de5dd 100644
--- a/Src/Asp.Net/PgSqlTest/Demo/Demo1_Queryable.cs
+++ b/Src/Asp.Net/PgSqlTest/Demo/Demo1_Queryable.cs
@@ -31,6 +31,7 @@ namespace OrmTest
             var db = GetInstance();
             var dbTime = db.GetDate();
             var getAll = db.Queryable<Order>().ToList();
+            var getAll2 = db.Queryable<object>().AsType(typeof(Order)).Where(it=>((Order)it).Id>0).ToList();
             var getOrderBy = db.Queryable<Order>().OrderBy(it => it.Name,OrderByType.Desc).ToList();
             var getOrderBy2 = db.Queryable<Order>().OrderBy(it => it.Id).OrderBy(it => it.Name, OrderByType.Desc).ToList();
             var getOrderBy3 = db.Queryable<Order>().OrderBy(it =>new { it.Name,it.Id}).ToList();