partial void Deletetrade(trade instance);
 partial void Updatetrade(trade instance);
		private void detach_trades(trade entity)
		{
			this.SendPropertyChanging();
			entity.account = null;
		}
 partial void Inserttrade(trade instance);
		private void attach_trades(trade entity)
		{
			this.SendPropertyChanging();
			entity.account = this;
		}