private void detach_Rooms(GroopsRoom entity)
 {
     this.SendPropertyChanging();
     entity.User = null;
 }
 partial void DeleteGroopsRoom(GroopsRoom instance);
 private void attach_Rooms(GroopsRoom entity)
 {
     this.SendPropertyChanging();
     entity.User = this;
 }
 partial void InsertGroopsRoom(GroopsRoom instance);
 partial void UpdateGroopsRoom(GroopsRoom instance);
		private void detach_Rooms(GroopsRoom entity)
		{
			this.SendPropertyChanging();
			entity.User = null;
		}
		private void attach_Rooms(GroopsRoom entity)
		{
			this.SendPropertyChanging();
			entity.User = this;
		}
 partial void DeleteGroopsRoom(GroopsRoom instance);
 partial void UpdateGroopsRoom(GroopsRoom instance);
 partial void InsertGroopsRoom(GroopsRoom instance);