private void btnThem_Click(object sender, EventArgs e)
 {
     try
     {
         FrmNhapDonViTinh frmNhapDVT = new FrmNhapDonViTinh();
         frmNhapDVT.btnOK.Tag = "add";
         string strDVT = cf.CreateId("DVT", "DONVITINH");
         frmNhapDVT.txtMaDVT.Text = strDVT;
         frmNhapDVT.ShowDialog();
         LoadDonViTinh();
     }
     catch { }
 }
 private void btnCapNhat_Click(object sender, EventArgs e)
 {
     try
     {
         FrmNhapDonViTinh frmNhapDVT = new FrmNhapDonViTinh();
         frmNhapDVT.btnOK.Tag = "up";
         int    index    = dgvDonViTinh.SelectedRows[0].Index;
         string strMaDVT = dgvDonViTinh.Rows[index].Cells["colMaDonViTinh"].Value.ToString();
         frmNhapDVT.txtMaDVT.Text = strMaDVT;
         string strDVT = dgvDonViTinh.Rows[index].Cells["colDonViTinh"].Value.ToString();
         frmNhapDVT.txtDonViTinh.Text = strDVT;
         frmNhapDVT.ShowDialog();
         LoadDonViTinh();
     }
     catch { }
 }
 private void btnCapNhat_Click(object sender, EventArgs e)
 {
     try
     {
         FrmNhapDonViTinh frmNhapDVT = new FrmNhapDonViTinh();
         frmNhapDVT.btnOK.Tag = "up";
         int index = dgvDonViTinh.SelectedRows[0].Index;
         string strMaDVT = dgvDonViTinh.Rows[index].Cells["colMaDonViTinh"].Value.ToString();
         frmNhapDVT.txtMaDVT.Text = strMaDVT;
         string strDVT = dgvDonViTinh.Rows[index].Cells["colDonViTinh"].Value.ToString();
         frmNhapDVT.txtDonViTinh.Text = strDVT;
         frmNhapDVT.ShowDialog();
         LoadDonViTinh();
     }
     catch { }
 }
 private void btnThem_Click(object sender, EventArgs e)
 {
     try
     {
         FrmNhapDonViTinh frmNhapDVT = new FrmNhapDonViTinh();
         frmNhapDVT.btnOK.Tag = "add";
         string strDVT = cf.CreateId("DVT", "DONVITINH");
         frmNhapDVT.txtMaDVT.Text = strDVT;
         frmNhapDVT.ShowDialog();
         LoadDonViTinh();
     }
     catch { }
 }