diff --git a/Src/Asp.Net/SqlSugar/Abstract/QueryableProvider/QueryableHelper.cs b/Src/Asp.Net/SqlSugar/Abstract/QueryableProvider/QueryableHelper.cs
index 759ebcfdb..8b04afbfd 100644
--- a/Src/Asp.Net/SqlSugar/Abstract/QueryableProvider/QueryableHelper.cs
+++ b/Src/Asp.Net/SqlSugar/Abstract/QueryableProvider/QueryableHelper.cs
@@ -1698,8 +1698,9 @@ namespace SqlSugar
             }
             else
             {
+                expression=ExpressionTool.RemoveConvert(expression);
                 lamResult = QueryBuilder.GetExpressionValue(expression, isSingle ? ResolveExpressType.FieldSingle : ResolveExpressType.FieldMultiple);
-                result = lamResult.GetResultString();
+                result = lamResult.GetResultString(); 
             }
             GroupBy(result);
             return this;