private void btnAdd_Click(object sender, EventArgs e) { //Confirm if the user wants to cancel the delivery || change the transaction to deliver if (txttransactionid.Text != "Transaction ID") { DialogResult result = MessageBox.Show("Are you sure you want cancel the delivery?", "Confirmation", MessageBoxButtons.YesNo, MessageBoxIcon.Question); if (result == DialogResult.Yes) { db.sp_delete_CustomerDelivery(txtDeliveryNo.Text); GendelID(txtDeliveryNo); gbDelivery.Hide(); gbOrderDetails.Show(); } } //Select a customer else { gbDelivery.Hide(); gbOrderDetails.Show(); } }