From 67356d440d382acab97d20005665c5db30a87f8d Mon Sep 17 00:00:00 2001
From: sunkaixuan <610262374@qq.com>
Date: Tue, 16 Aug 2022 21:23:58 +0800
Subject: [PATCH] Update  db.Tracking

---
 .../SqlSugar/Abstract/UpdateProvider/UpdateableHelper.cs | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/Src/Asp.Net/SqlSugar/Abstract/UpdateProvider/UpdateableHelper.cs b/Src/Asp.Net/SqlSugar/Abstract/UpdateProvider/UpdateableHelper.cs
index 0b1dd3d06..44f01fb18 100644
--- a/Src/Asp.Net/SqlSugar/Abstract/UpdateProvider/UpdateableHelper.cs
+++ b/Src/Asp.Net/SqlSugar/Abstract/UpdateProvider/UpdateableHelper.cs
@@ -106,14 +106,19 @@ namespace SqlSugar
                 var diffColumns = FastCopy.GetDiff(item, (T)trackingData.Value);
                 if (diffColumns.Count > 0)
                 {
-                    var pks =EntityInfo.Columns
+                    var pks = EntityInfo.Columns
                         .Where(it => it.IsPrimarykey).Select(it => it.PropertyName).ToList();
-                    diffColumns=diffColumns.Where(it => !pks.Contains(it)).ToList();
+                    diffColumns = diffColumns.Where(it => !pks.Contains(it)).ToList();
                     if (diffColumns.Count > 0)
                     {
                         this.UpdateColumns(diffColumns.ToArray());
                     }
                 }
+                else 
+                {
+                    this.UpdateObjs = new T [] { null };
+                    this.UpdateBuilder.DbColumnInfoList = new List<DbColumnInfo>();
+                }
             }
         }