//Заполнение датагрида
private void dgFill(string qr)
{
DBConnection2 connection = new DBConnection2();
DBConnection2.qrDolgnost = qr;
connection.DolgnostFill();
dgDolgnost.ItemsSource = connection.dtDolgnost.DefaultView;
dgDolgnost.Columns[0].Visibility = Visibility.Collapsed;
}
//Заполнение комбо-бокса
private void cbFill()
{
DBConnection2 connection = new DBConnection2();
connection.DolgnostFill();
cbDolgnost.ItemsSource = connection.dtDolgnost.DefaultView;
cbDolgnost.SelectedValuePath = "ID_Dolgnost";
cbDolgnost.DisplayMemberPath = "Name_of_Dolgnost";
}