From e4138b02112c220165dcc3bc670e18c4ba9ca309 Mon Sep 17 00:00:00 2001
From: sunkaixuan <610262374@qq.com>
Date: Wed, 21 Dec 2022 15:34:46 +0800
Subject: [PATCH] Synchronization code

---
 .../ExpressionsToSql/ResolveItems/BaseResolve_Item.cs        | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/ResolveItems/BaseResolve_Item.cs b/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/ResolveItems/BaseResolve_Item.cs
index b0cbbc2f2..ad23892d6 100644
--- a/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/ResolveItems/BaseResolve_Item.cs
+++ b/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/ResolveItems/BaseResolve_Item.cs
@@ -140,7 +140,10 @@ namespace SqlSugar
                 var value = GetNewExpressionValue(item);
                 if (this.Context.SugarContext.QueryBuilder.SubToListParameters == null)
                     this.Context.SugarContext.QueryBuilder.SubToListParameters = new Dictionary<string, object>();
-                this.Context.SugarContext.QueryBuilder.SubToListParameters.Add(asName, value);
+                if (!this.Context.SugarContext.QueryBuilder.SubToListParameters.ContainsKey(asName))
+                {
+                    this.Context.SugarContext.QueryBuilder.SubToListParameters.Add(asName, value);
+                }
                 //throw new Exception("子查询ToList开发中..");
             }
             else