partial void DeleteModelTag(ModelTag instance);
 partial void UpdateModelTag(ModelTag instance);
		private void detach_ModelTags(ModelTag entity)
		{
			this.SendPropertyChanging();
			entity.Model = null;
		}
 partial void InsertModelTag(ModelTag instance);
		private void attach_ModelTags(ModelTag entity)
		{
			this.SendPropertyChanging();
			entity.Model = this;
		}