protected override bool ProcessDialogKey(Keys keyData)
 {
     if (keyData == Keys.Escape)
     {
         DialogResult = DialogResult.Cancel;
         this.Close();
         return(true);
     }
     else if (keyData == (Keys.Alt | Keys.N))
     {
         return(true);
     }
     else if (keyData == (Keys.Alt | Keys.X))
     {
         return(true);
     }
     else if (keyData == (Keys.Alt | Keys.L))
     {
         return(true);
     }
     else if (keyData == (Keys.Alt | Keys.G))
     {
         return(true);
     }
     else if (keyData == Keys.F5)
     {
         object objT = DieuHanhTaxi.GetFormGiamSatXe();
         if (objT != null)
         {
             new frmRaHoatDong((frmGiamSatXe)objT, 1).ShowDialog();
         }
     }
     else if (keyData == Keys.F6)
     {
         object objT = DieuHanhTaxi.GetFormGiamSatXe();
         if (objT != null)
         {
             new frmRaHoatDong((frmGiamSatXe)objT, 2).ShowDialog();
         }
     }
     else if (keyData == Keys.F7)
     {
         object objT = DieuHanhTaxi.GetFormGiamSatXe();
         if (objT != null)
         {
             new frmRaHoatDong((frmGiamSatXe)objT, 3).ShowDialog();
         }
     }
     else if (keyData == Keys.F8)
     {
         object objT = DieuHanhTaxi.GetFormGiamSatXe();
         if (objT != null)
         {
             new frmRaHoatDong((frmGiamSatXe)objT, 4).ShowDialog();
         }
     }
     else if (keyData == Keys.Enter) // Mo nhap du lieu dong 1
     {
         this.btnOK_Click(null, null);
         if (this.DialogResult != DialogResult.No)
         {
             this.DialogResult = DialogResult.OK;
         }
         this.Close(); return(true);
     }
     return(false);
 }