private void detach_Activity_SubRelay(Activity_SubRelay entity)
		{
			this.SendPropertyChanging();
			entity.WeixinUser = null;
		}
 partial void DeleteActivity_SubRelay(Activity_SubRelay instance);
 partial void InsertActivity_SubRelay(Activity_SubRelay instance);
 partial void UpdateActivity_SubRelay(Activity_SubRelay instance);
		private void attach_Activity_SubRelay(Activity_SubRelay entity)
		{
			this.SendPropertyChanging();
			entity.Activity_Relay = this;
		}