diff --git a/Src/Asp.NetCore2/SqlSugar/Abstract/ExecuteNavProvider/UpdateNavProvider.cs b/Src/Asp.NetCore2/SqlSugar/Abstract/ExecuteNavProvider/UpdateNavProvider.cs
index ee4605070..1fbd053f5 100644
--- a/Src/Asp.NetCore2/SqlSugar/Abstract/ExecuteNavProvider/UpdateNavProvider.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Abstract/ExecuteNavProvider/UpdateNavProvider.cs
@@ -19,6 +19,8 @@ namespace SqlSugar
 
         public UpdateNavOptions _Options { get; set; }
         public bool IsFirst { get; set; }
+        public bool IsAsNav { get;  set; }
+
         public UpdateNavProvider<Root, Root> AsNav()
         {
             return new UpdateNavProvider<Root, Root>
@@ -69,6 +71,7 @@ namespace SqlSugar
             }
             else
             {
+              
                 UpdateRoot(isRoot, nav);
             }
             IsFirst = false;
@@ -130,6 +133,10 @@ namespace SqlSugar
 
         private void UpdateRoot()
         {
+            if (IsAsNav) 
+            {
+                return;
+            }
             if (_Options != null && _Options.RootFunc != null)
             {
                 var updateable = this._Context.Updateable(_Roots);
diff --git a/Src/Asp.NetCore2/SqlSugar/Abstract/ExecuteNavProvider/UpdateNavTask.cs b/Src/Asp.NetCore2/SqlSugar/Abstract/ExecuteNavProvider/UpdateNavTask.cs
index 26c2a63d3..bdffd510d 100644
--- a/Src/Asp.NetCore2/SqlSugar/Abstract/ExecuteNavProvider/UpdateNavTask.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Abstract/ExecuteNavProvider/UpdateNavTask.cs
@@ -143,7 +143,11 @@ namespace SqlSugar
         private UpdateNavTask<Root, Root> AsNav()
         {
             UpdateNavTask<Root, Root> result = new UpdateNavTask<Root, Root>();
-            Func<UpdateNavProvider<Root, Root>> func = () => PreFunc().AsNav();
+            Func<UpdateNavProvider<Root, Root>> func = () => {
+                  var navres=PreFunc().AsNav();
+                  navres.IsAsNav = true;
+                  return navres;
+                };
             result.PreFunc = func;
             result.Context = this.Context;
             return result;