partial void Deleteticket(ticket instance);
		private void detach_tickets(ticket entity)
		{
			this.SendPropertyChanging();
			entity.correspondence = null;
		}
 partial void Updateticket(ticket instance);
 partial void Insertticket(ticket instance);
		private void detach_tickets(ticket entity)
		{
			this.SendPropertyChanging();
			entity.category = null;
		}
		private void attach_tickets(ticket entity)
		{
			this.SendPropertyChanging();
			entity.category = this;
		}
		private void detach_tickets(ticket entity)
		{
			this.SendPropertyChanging();
			entity.ticket_statuse = null;
		}