public decimal PromptForPayment()
{
_prompt.Message = "\n" +
"Please pay for your order using " + PaymentType.ToLower() + ". Enter the amount to pay:";
//Get input and trim any $ symbol, the user might have specified.
string userResponse = Prompt.CleanCurrencyInput(_prompt.GetUserInput());
while (!decimal.TryParse(userResponse, out decimal num) || Convert.ToDecimal(userResponse) < TotalPrice) // while not a decimal value that is at least the amount requested
{
// Validate Payment (did they give enough money?)
if (decimal.TryParse(userResponse, out num) && (Convert.ToDecimal(userResponse) < TotalPrice))
{
_prompt.Message = "Inadequate amount received. You are " + (TotalPrice - Convert.ToDecimal(userResponse)).ToString("C") + " short. Please pay the full amount: " + TotalPrice.ToString("C");
}
else
{
_prompt.Message = "That is not a valid numeric response. Please enter a number:";
}
//Get input and trim any $ symbol, the user might have specified.
userResponse = Prompt.CleanCurrencyInput(_prompt.GetUserInput());
}
return(Convert.ToDecimal(userResponse));
}
