From 0c3b6200021420703e2b10a010d4b9d3e5fa0d7b Mon Sep 17 00:00:00 2001
From: sunkaixuan <610262374@qq.com>
Date: Wed, 20 Aug 2025 18:50:03 +0800
Subject: [PATCH] Update  mongodb

---
 .../MongoDb/SqlBuilder/MongoDbExpressionContext.cs            | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Src/Asp.NetCore2/SqlSugar.MongoDbCore/MongoDb/SqlBuilder/MongoDbExpressionContext.cs b/Src/Asp.NetCore2/SqlSugar.MongoDbCore/MongoDb/SqlBuilder/MongoDbExpressionContext.cs
index 65cf5827f..6a9fd41f6 100644
--- a/Src/Asp.NetCore2/SqlSugar.MongoDbCore/MongoDb/SqlBuilder/MongoDbExpressionContext.cs
+++ b/Src/Asp.NetCore2/SqlSugar.MongoDbCore/MongoDb/SqlBuilder/MongoDbExpressionContext.cs
@@ -576,11 +576,11 @@ namespace SqlSugar.MongoDb
             BsonValue memberName = new ExpressionVisitor(context).Visit(item);
             BsonValue startValue = new ExpressionVisitor(context).Visit(start as Expression);
             BsonValue lengthValue = new ExpressionVisitor(context).Visit(length as Expression);
-            if (startValue.IsString)
+            if (startValue.IsString&&ExpressionTool.GetParameters(start as Expression).Count>0)
             {
                 startValue = UtilMethods.GetMemberName(startValue);
             }
-            if (lengthValue.IsString) 
+            if (lengthValue.IsString && ExpressionTool.GetParameters(length as Expression).Count > 0) 
             {
                 lengthValue = UtilMethods.GetMemberName(lengthValue);
             }