private void btn_deleteInvoice_Click(object sender, EventArgs e)
{
try
{
// Get the invoice ID from the application.
invoice.InvoiceId = Convert.ToInt32(txtbx_invoiceID.Text);
// Delete records in Database for all services selected in the combo box.
DeleteServicesFromDb();
// Delete records in Database for all prescriptions selected in the combo box.
DeletePrescriptionsFromDb();
}
catch (Exception exception)
{
MessageBox.Show(exception.Message);
}
// Delete record from database and assign the return value to variable.
bool success = invoice.Delete(invoice);
// If the operation is successful, the method will return TRUE.
if (success)
{
// Successfully deleted.
MessageBox.Show("Invoice succesfully deleted.");
// Call the method to refresh DataGrid view after deletion.
LoadInvoiceDgvData();
// Call the method to clear all input/selection fields
Clear();
}
else
{
// Delete failed.
MessageBox.Show("Failed to delete invoice. Try again.");
}
}