private void AddCollectionToExcludePaymentMethodList(IEnumerable <PaymentMethod> paymentMethods)
{
foreach (var pm in paymentMethods)
{
if (pm == PaymentMethod.INVOICE)
{
ExcludedPaymentMethod.AddRange(InvoiceType.GetAllInvoiceValues());
}
else if (pm == PaymentMethod.PAYMENTPLAN)
{
ExcludedPaymentMethod.AddRange(PaymentPlanType.AllPaymentPlanValues());
}
else
{
ExcludedPaymentMethod.Add(pm.Value);
}
}
}