Update db.UpdateNav

Src/Asp.Net/SqlSugar/Abstract/ExecuteNavProvider/UpdateNavManyToMany.cs

@@ -10,7 +10,6 @@ namespace SqlSugar
     {
         private void UpdateManyToMany<TChild>(string name, EntityColumnInfo nav) where TChild : class, new()
         {
-            ;
             var parentEntity = _ParentEntity;
             var parentList = _ParentList;
             var parentPkColumn = parentEntity.Columns.FirstOrDefault(it => it.IsPrimarykey == true);
@@ -33,7 +32,14 @@ namespace SqlSugar
             {
                 var items = parentNavigateProperty.PropertyInfo.GetValue(item);
                 var children = ((List<TChild>)items);
-                InsertDatas(children, thisPkColumn);
+                if (this._Options != null && this._Options.ManyToManyIsUpdateB)
+                {
+                    InsertDatas(children, thisPkColumn);
+                }
+                else 
+                {
+                    _ParentList = children.Cast<object>().ToList();
+                }
                 var parentId = parentPkColumn.PropertyInfo.GetValue(item);
                 foreach (var child in children)
                 {
@@ -51,6 +57,7 @@ namespace SqlSugar
             var ids = mappgingTables.Select(x => x[mappingA.DbColumnName]).ToList();
             this._Context.Deleteable<object>().AS(mappingEntity.DbTableName).In(mappingA.DbColumnName, ids).ExecuteCommand();
             this._Context.Insertable(mappgingTables).AS(mappingEntity.DbTableName).ExecuteCommand();
+            _ParentEntity = thisEntity;
         }
 
         private void SetMappingTableDefaultValue(EntityColumnInfo mappingPk, Dictionary<string, object> keyValuePairs)

Src/Asp.Net/SqlSugar/Abstract/ExecuteNavProvider/UpdateNavProvider.cs

@@ -17,7 +17,7 @@ namespace SqlSugar
         public EntityColumnInfo _ParentPkColumn { get; set; }
         public SqlSugarProvider _Context { get; set; }
 
-
+        public UpdateNavOptions _Options { get; set; }
         public UpdateNavProvider<Root, Root> AsNav()
         {
             return new UpdateNavProvider<Root, Root>
@@ -30,6 +30,28 @@ namespace SqlSugar
             };
         }
         public UpdateNavProvider<Root, TChild> ThenInclude<TChild>(Expression<Func<T, TChild>> expression) where TChild : class, new()
+        {
+            return _ThenInclude(expression);
+        }
+
+        public UpdateNavProvider<Root, TChild> ThenInclude<TChild>(Expression<Func<T, List<TChild>>> expression) where TChild : class, new()
+        {
+            return _ThenInclude(expression);
+        }
+
+        public UpdateNavProvider<Root, TChild> ThenInclude<TChild>(Expression<Func<T, TChild>> expression,UpdateNavOptions options) where TChild : class, new()
+        {
+            _Options= options;  
+            return _ThenInclude(expression);
+        }
+
+        public UpdateNavProvider<Root, TChild> ThenInclude<TChild>(Expression<Func<T, List<TChild>>> expression, UpdateNavOptions options) where TChild : class, new()
+        {
+            _Options = options;
+            return _ThenInclude(expression);
+        }
+
+        private UpdateNavProvider<Root, TChild> _ThenInclude<TChild>(Expression<Func<T, TChild>> expression) where TChild : class, new()
         {
             InitParentList();
             var name = ExpressionTool.GetMemberName(expression);
@@ -52,7 +74,8 @@ namespace SqlSugar
             }
             return GetResult<TChild>();
         }
-        public UpdateNavProvider<Root, TChild> ThenInclude<TChild>(Expression<Func<T, List<TChild>>> expression) where TChild : class, new()
+
+        private UpdateNavProvider<Root, TChild> _ThenInclude<TChild>(Expression<Func<T, List<TChild>>> expression) where TChild : class, new()
         {
             InitParentList();
             var name = ExpressionTool.GetMemberName(expression);

Src/Asp.Net/SqlSugar/Abstract/ExecuteNavProvider/UpdateNavProviderHelper.cs

@@ -18,7 +18,10 @@ namespace SqlSugar
         {
             if (_RootList == null)
             {
-                this._Context.Updateable(_Roots).ExecuteCommand();
+                if (_Options != null && _Options.ManyToManyIsUpdateA)
+                {
+                    this._Context.Updateable(_Roots).ExecuteCommand();
+                }
                 _RootList = _ParentList = _Roots.Cast<object>().ToList();
                 _ParentEntity = this._Context.EntityMaintenance.GetEntityInfo<Root>();
             }

Src/Asp.Net/SqlSugar/Abstract/ExecuteNavProvider/UpdateNavTask.cs

@@ -31,11 +31,33 @@ namespace SqlSugar
             result.Context = this.Context;
             return result;
         }
+
+        public UpdateNavTask<Root, TChild> Include<TChild>(Expression<Func<Root, TChild>> expression,UpdateNavOptions options) where TChild : class, new()
+        {
+            this.Context = UpdateNavProvider._Context;
+            UpdateNavTask<Root, TChild> result = new UpdateNavTask<Root, TChild>();
+            Func<UpdateNavProvider<Root, TChild>> func = () => UpdateNavProvider.ThenInclude(expression,options);
+            result.PreFunc = func;
+            result.Context = this.Context;
+            return result;
+        }
+        public UpdateNavTask<Root, TChild> Include<TChild>(Expression<Func<Root, List<TChild>>> expression, UpdateNavOptions options) where TChild : class, new()
+        {
+            this.Context = UpdateNavProvider._Context;
+            UpdateNavTask<Root, TChild> result = new UpdateNavTask<Root, TChild>();
+            Func<UpdateNavProvider<Root, TChild>> func = () => UpdateNavProvider.ThenInclude(expression,options);
+            result.PreFunc = func;
+            result.Context = this.Context;
+            return result;
+        }
     }
     public class UpdateNavTask<Root, T> where T : class, new() where Root : class, new()
     {
         public SqlSugarProvider Context { get; set; }
         public Func<UpdateNavProvider<Root, T>> PreFunc { get; set; }
+
+
+        #region +1
         public UpdateNavTask<Root, TChild> ThenInclude<TChild>(Expression<Func<T, TChild>> expression) where TChild : class, new()
         {
             UpdateNavTask<Root, TChild> result = new UpdateNavTask<Root, TChild>();
@@ -60,6 +82,38 @@ namespace SqlSugar
         {
             return AsNav().ThenInclude(expression);
         }
+
+        #endregion
+
+
+        #region +2
+        public UpdateNavTask<Root, TChild> ThenInclude<TChild>(Expression<Func<T, TChild>> expression, UpdateNavOptions options) where TChild : class, new()
+        {
+            UpdateNavTask<Root, TChild> result = new UpdateNavTask<Root, TChild>();
+            Func<UpdateNavProvider<Root, TChild>> func = () => PreFunc().ThenInclude(expression, options);
+            result.PreFunc = func;
+            result.Context = this.Context;
+            return result;
+        }
+        public UpdateNavTask<Root, TChild> ThenInclude<TChild>(Expression<Func<T, List<TChild>>> expression, UpdateNavOptions options) where TChild : class, new()
+        {
+            UpdateNavTask<Root, TChild> result = new UpdateNavTask<Root, TChild>();
+            Func<UpdateNavProvider<Root, TChild>> func = () => PreFunc().ThenInclude(expression, options);
+            result.PreFunc = func;
+            result.Context = this.Context;
+            return result;
+        }
+        public UpdateNavTask<Root, TChild> Include<TChild>(Expression<Func<Root, TChild>> expression, UpdateNavOptions options) where TChild : class, new()
+        {
+            return AsNav().ThenInclude(expression, options);
+        }
+        public UpdateNavTask<Root, TChild> Include<TChild>(Expression<Func<Root, List<TChild>>> expression, UpdateNavOptions options) where TChild : class, new()
+        {
+            return AsNav().ThenInclude(expression, options);
+        } 
+        #endregion
+
+
         public bool ExecuteCommand()
         {
             var hasTran = this.Context.Ado.Transaction != null;