private void toolBar_btnCancel_Click(object sender)
{
SalesInvoiceDB.CancelAllChanges();
sales_invoice sales_invoice = (sales_invoice)sales_invoiceDataGrid.SelectedItem;
sales_invoice.State = EntityState.Unchanged;
}
private void Cancel_MouseDown(object sender, EventArgs e)
{
SalesInvoiceDB.CancelAllChanges();
PaymentDB.CancelAllChanges();
New_Sale_Payment();
//Clean up Contact Data.
sbxContact.Text = "";
sbxContact.ContactID = 0;
sbxItem.Text = string.Empty;
sbxItem.ItemID = 0;
tabContact.IsSelected = true;
}