private void loadDictionary() { Marks marks = Marks.getInstance(); cbMark.DataSource = marks.ToDataTable(); cbMark.DisplayMember = "Название"; cbMark.ValueMember = "id"; ServiceStantions serviceStantions = ServiceStantions.getInstance(); cbServiceStantion.DataSource = serviceStantions.ToDataTable(); cbServiceStantion.DisplayMember = "Название"; cbServiceStantion.ValueMember = "id"; }