private void btnSubmit_Click(object sender, EventArgs e)
{
Invoice invoice = BLInvoice.GetInvoiceListById(APCContext,int.Parse(tbInvoiceId.Text));
BLPaymentFromClient.insertPaymentFromClient(APCContext,invoice,decimal.Parse(tbPaymentAmount.Text), calPaidDate.Value);
//check if payment has been made full - if yes then can mark as paid.
if (invoice.TotalDue <= TotalPaid(invoice.Id))
{
invoice.Paid = true;
invoice.DatePaid = DateTime.Now;
APCContext.SaveChanges();
}
MessageBox.Show("Payment has been recorded");
}
