diff --git a/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/DbMethods/DefaultDbMethod.cs b/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/DbMethods/DefaultDbMethod.cs
index 86bcfbef9..a50908e8c 100644
--- a/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/DbMethods/DefaultDbMethod.cs
+++ b/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/DbMethods/DefaultDbMethod.cs
@@ -9,6 +9,7 @@ namespace SqlSugar
 {
     public partial class DefaultDbMethod : IDbMethods
     {
+        public ISqlSugarClient sqlSugarClient { get; set; }
         public virtual string ParameterKeyWord { get; set; }= "@";
         public virtual string RowNumber(MethodCallExpressionModel model) 
         {
diff --git a/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/DbMethods/IDbMethods.cs b/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/DbMethods/IDbMethods.cs
index 9da948fb0..4c54c2bcb 100644
--- a/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/DbMethods/IDbMethods.cs
+++ b/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/DbMethods/IDbMethods.cs
@@ -11,6 +11,7 @@ namespace SqlSugar
 {
     public interface IDbMethods
     {
+        ISqlSugarClient sqlSugarClient { get; set; }
         string IIF(MethodCallExpressionModel model);
         string HasNumber(MethodCallExpressionModel model);
         string HasValue(MethodCallExpressionModel model);
diff --git a/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/Subquery/Items/SubSelectStringJoin.cs b/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/Subquery/Items/SubSelectStringJoin.cs
index 5b6cd921c..3bfa59592 100644
--- a/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/Subquery/Items/SubSelectStringJoin.cs
+++ b/Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/Subquery/Items/SubSelectStringJoin.cs
@@ -65,6 +65,7 @@ namespace SqlSugar
                     result =  string.Join(",",(constant.Value+"").Split(',').Select(it=>this.Context.GetTranslationTableName(it)));
                 }
             }
+            this.Context.DbMehtods.sqlSugarClient = this.Context?.SugarContext?.Context;
             result = this.Context.DbMehtods.GetStringJoinSelector(result, ExpressionTool.GetExpressionValue(exp.Arguments[1]) + "");
 
             return result;