private void cmdSuaDichVu_Click(object sender, RoutedEventArgs e)
 {
     HyperlinkButton cmdSuaDichVu = sender as HyperlinkButton;
     int DichVuID = int.Parse(cmdSuaDichVu.CommandParameter.ToString());
     frmDichVuEdit DichVuEdit = new frmDichVuEdit();
     DichVuEdit.Closed += new EventHandler(DichVuEdit_Closed);
     DichVuEdit.DichVu_Load(DichVuID);
     DichVuEdit.Show();
 }
 private void cmdThemDichVu_Click(object sender, RoutedEventArgs e)
 {
     frmDichVuEdit DichVuEdit = new frmDichVuEdit();
     DichVuEdit.Closed += new EventHandler(DichVuEdit_Closed);
     DichVuEdit.Show();
 }