Update IgnoreColumns

Src/Asp.Net/SqlSugar/Abstract/SqlBuilderProvider/UpdateBuilder.cs

@@ -28,6 +28,7 @@ namespace SqlSugar
         public List<string> WhereValues { get; set; }
         public List<KeyValuePair<string, string>> SetValues { get; set; }
         public bool IsNoUpdateNull { get; set; }
+        public bool IsNoUpdateDefaultValue { get; set; }
         public List<string> PrimaryKeys { get; set; }
         public bool IsOffIdentity { get; set; }
 
@@ -140,6 +141,10 @@ namespace SqlSugar
             {
                 DbColumnInfoList = DbColumnInfoList.Where(it => it.Value != null).ToList();
             }
+            if (IsNoUpdateDefaultValue)
+            {
+                DbColumnInfoList = DbColumnInfoList.Where(it => it.Value.ObjToString() !=UtilMethods.DefaultForType(it.GetType()).ObjToString()).ToList();
+            }
             var groupList = DbColumnInfoList.GroupBy(it => it.TableId).ToList();
             var isSingle = groupList.Count() == 1;
             if (isSingle)

Src/Asp.Net/SqlSugar/Abstract/UpdateProvider/UpdateableProvider.cs

@@ -122,12 +122,13 @@ namespace SqlSugar
 
 
 
-        public IUpdateable<T> IgnoreColumns(bool ignoreAllNullColumns, bool isOffIdentity = false)
+        public IUpdateable<T> IgnoreColumns(bool ignoreAllNullColumns, bool isOffIdentity = false,bool ignoreAllDefaultValue = false)
         {
             UpdateBuilder.IsOffIdentity = isOffIdentity;
             if (this.UpdateBuilder.LambdaExpressions == null)
                 this.UpdateBuilder.LambdaExpressions = InstanceFactory.GetLambdaExpressions(this.Context.CurrentConnectionConfig);
             this.UpdateBuilder.IsNoUpdateNull = ignoreAllNullColumns;
+            this.UpdateBuilder.IsNoUpdateDefaultValue = ignoreAllDefaultValue;
             return this;
         }
         public IUpdateable<T> IgnoreColumns(Expression<Func<T, object>> columns)

Src/Asp.Net/SqlSugar/Interface/IUpdateable.cs

@@ -77,7 +77,7 @@ namespace SqlSugar
 
 
 
-        IUpdateable<T> IgnoreColumns(bool ignoreAllNullColumns, bool isOffIdentity = false);
+        IUpdateable<T> IgnoreColumns(bool ignoreAllNullColumns, bool isOffIdentity = false, bool ignoreAllDefaultValue = false);
         IUpdateable<T> IgnoreColumns(Expression<Func<T, object>> columns);
         IUpdateable<T> IgnoreColumns(params string[] columns);