diff --git a/Src/Asp.Net/SqlSugar/Abstract/DbBindProvider/IDataRecordExtensions.cs b/Src/Asp.Net/SqlSugar/Abstract/DbBindProvider/IDataRecordExtensions.cs
index cbceeb8b1..836c5af5a 100644
--- a/Src/Asp.Net/SqlSugar/Abstract/DbBindProvider/IDataRecordExtensions.cs
+++ b/Src/Asp.Net/SqlSugar/Abstract/DbBindProvider/IDataRecordExtensions.cs
@@ -332,7 +332,7 @@ namespace SqlSugar
                 var data = dr.GetString(i);
                 if (data.ToString() == "")
                 {
-                    return UtilMethods.To<T>(null);
+                    return UtilMethods.To<T>(default(T));
                 }
                 else
                 {
diff --git a/Src/Asp.Net/SqliteTest/UnitTest/UQueryable.cs b/Src/Asp.Net/SqliteTest/UnitTest/UQueryable.cs
index ff6775053..9309ded72 100644
--- a/Src/Asp.Net/SqliteTest/UnitTest/UQueryable.cs
+++ b/Src/Asp.Net/SqliteTest/UnitTest/UQueryable.cs
@@ -80,7 +80,7 @@ namespace OrmTest
             }, o => o.OrderSn == saleOrderInfo.OrderSn && o.OrderStatus != 1);
 
             Db.CodeFirst.InitTables<UnitAbc121>();
-            Db.Insertable(new UnitAbc121() {  name="a" }).ExecuteCommand();
+            Db.Insertable(new UnitAbc121() {  name="a",uid=null }).ExecuteCommand();
             Db.Insertable(new UnitAbc121() { name = "a", uid=Guid.NewGuid() }).ExecuteCommand();
             var list10= Db.Queryable<UnitAbc121>().ToList();
         }