From e08444d161c9a80845c54b41b786e07d681f9ff5 Mon Sep 17 00:00:00 2001
From: sunkaixuan <610262374@qq.com>
Date: Sat, 30 Apr 2022 17:53:23 +0800
Subject: [PATCH] Update exp to sql

---
 .../ExpressionsToSql/Common/ExpressionTool.cs  | 18 +++++++++++++++++-
 .../MemberInitExpressionResolve.cs             |  2 +-
 2 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/Src/Asp.Net/SqlSugar/ExpressionsToSql/Common/ExpressionTool.cs b/Src/Asp.Net/SqlSugar/ExpressionsToSql/Common/ExpressionTool.cs
index bef4ccdb3..18100ccef 100644
--- a/Src/Asp.Net/SqlSugar/ExpressionsToSql/Common/ExpressionTool.cs
+++ b/Src/Asp.Net/SqlSugar/ExpressionsToSql/Common/ExpressionTool.cs
@@ -198,7 +198,23 @@ namespace SqlSugar
             }
             return item;
         }
-
+        internal static Expression RemoveConvertThanOne(Expression item)
+        {
+            for (int i = 0; i < 10; i++)
+            {
+                if ((item is UnaryExpression) 
+                    && (item as UnaryExpression).NodeType == ExpressionType.Convert
+                    && (item as UnaryExpression).Operand is UnaryExpression)
+                {
+                    item = (item as UnaryExpression).Operand;
+                }
+                else
+                {
+                    break;
+                }
+            }
+            return item;
+        }
         public static string GetMemberName(Expression expression) 
         {
             if (expression is LambdaExpression) 
diff --git a/Src/Asp.Net/SqlSugar/ExpressionsToSql/ResolveItems/MemberInitExpressionResolve.cs b/Src/Asp.Net/SqlSugar/ExpressionsToSql/ResolveItems/MemberInitExpressionResolve.cs
index e21923d2a..6f52fdcdb 100644
--- a/Src/Asp.Net/SqlSugar/ExpressionsToSql/ResolveItems/MemberInitExpressionResolve.cs
+++ b/Src/Asp.Net/SqlSugar/ExpressionsToSql/ResolveItems/MemberInitExpressionResolve.cs
@@ -130,7 +130,7 @@ namespace SqlSugar
                 }
                 else if (IsConst(item))
                 {
-                    base.Expression = ExpressionTool.RemoveConvert(item);
+                    base.Expression =ExpressionTool.RemoveConvertThanOne(item);
                     base.Start();
                     string parameterName = this.Context.SqlParameterKeyWord + ExpressionConst.Const + this.Context.ParameterIndex;
                     parameter.Context.Result.Append(base.Context.GetEqString(memberName, parameterName));