From 5ec61e410a9714dfe5cc3646c01c450f16630a6f Mon Sep 17 00:00:00 2001
From: sunkaixuan <610262374@qq.com>
Date: Wed, 21 Sep 2022 19:58:08 +0800
Subject: [PATCH] Update  db.UpdateNav

---
 .../ExecuteNavProvider/UpdateNavOneToMany.cs         | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/Src/Asp.Net/SqlSugar/Abstract/ExecuteNavProvider/UpdateNavOneToMany.cs b/Src/Asp.Net/SqlSugar/Abstract/ExecuteNavProvider/UpdateNavOneToMany.cs
index 31e17355c..c072b3a0e 100644
--- a/Src/Asp.Net/SqlSugar/Abstract/ExecuteNavProvider/UpdateNavOneToMany.cs
+++ b/Src/Asp.Net/SqlSugar/Abstract/ExecuteNavProvider/UpdateNavOneToMany.cs
@@ -24,6 +24,10 @@ namespace SqlSugar
             {
                 parentPkColumn = parentNavColumn;
             }
+            if (ParentIsPk(parentNavigateProperty))
+            {
+                parentPkColumn = this._ParentEntity.Columns.FirstOrDefault(it => it.IsPrimarykey);
+            }
             var ids = new List<object>();
             foreach (var item in parentList)
             {
@@ -48,7 +52,13 @@ namespace SqlSugar
             _NavigateType = null;
             SetNewParent<TChild>(thisEntity, thisPkColumn);
         }
-
+        private static bool ParentIsPk(EntityColumnInfo parentNavigateProperty)
+        {
+            return parentNavigateProperty != null &&
+                   parentNavigateProperty.Navigat != null &&
+                   parentNavigateProperty.Navigat.NavigatType == NavigateType.OneToMany &&
+                   parentNavigateProperty.Navigat.Name2 == null;
+        }
         private void DeleteMany(EntityInfo thisEntity, List<object> ids,string fkName)
         {
             if (_Options == null||_Options.OneToManyDeleteAll==false)