private void reset()
{
hdType.Value = "0";
optClear(optprefill);
txtsearch.Text = String.Empty;
txtVTname.Text = String.Empty;
txtvtype.Text = String.Empty;
txtAbbr.Text = String.Empty;
ddlvno.SelectedIndex = 0;
Label1.Visible = false;
Label2.Visible = false;
Label3.Visible = false;
txtno.Visible = false;
txtwidth.Visible = false;
optprefill.Visible = false;
txtno.Text = String.Empty;
txtwidth.Text = String.Empty;
Voucher.Clear();
VoucherTable.Clear();
txtprefix.Text = "";
chkPrint.Checked = false;
chkNarr.Checked = false;
}