//Non-Preferred customer transaction method
public static void CustomerItemPurchaseNotPreferred(List <NonPreferredCustomer> inputList, int index, string input)
{
bool loop = false;
decimal purchasePrice;
NonPreferredCustomer notPreferredTransaction = new NonPreferredCustomer();
Console.WriteLine(StandardMessages.DisplayNotPreferredCustomerMessage());
notPreferredTransaction.CustomerStatus = false;
do
{
//Get users purchase price
Console.Write("Enter purchase price ==> ");
input = Console.ReadLine();
//Determine if user inputs a number or character
if (decimal.TryParse(input, out purchasePrice))
{
notPreferredTransaction.PurchaseAmount = purchasePrice;
notPreferredTransaction.TransactionNumber = notPreferredTransaction.TransactionNumber + index;
inputList.Add(notPreferredTransaction);
DisplayCustomerTransaction.DisplayNonPreferredTransaction(purchasePrice);
Console.WriteLine(StandardMessages.DisplayEnterMessage());
Console.ReadLine();
loop = true;
}
else
{
//If user enters anything other than a number display invalid input.
Console.WriteLine(StandardMessages.DisplayInvalidChoice());
Console.ReadLine();
}
} while (loop == false);
}
