private void detach_consumption(consumption entity)
		{
			this.SendPropertyChanging();
			entity.YearMonth = null;
		}
		private void detach_consumption(consumption entity)
		{
			this.SendPropertyChanging();
			entity.Usergroup = null;
		}
 partial void Deleteconsumption(consumption instance);
 partial void Updateconsumption(consumption instance);
 partial void Insertconsumption(consumption instance);
		private void detach_consumption(consumption entity)
		{
			this.SendPropertyChanging();
			entity.consumType = null;
		}