private void Cancel_Click(object sender, RoutedEventArgs e)
{
VendorName.Clear();
PurchaseOrderNo.Clear();
ReferenceNo.Clear();
Date.Clear();
DeliveryDate.Clear();
SubTotal.Clear();
Adjustment.Clear();
Total.Clear();
CustNotes.Clear();
TermAndCondns.Clear();
RadioOrg.IsChecked = true;
}