/// <summary>
/// Selects a product to buy
/// </summary>
private void SelectProduct()
{
this.DisplayInventory(this.vM500);
Console.Write("Please select a product: ");
string choice = Console.ReadLine().ToUpper();
VMItem purchase = null;
string message = string.Empty;
var result = (item : purchase, message : message);
result = this.vM500.Purchase(choice);
if (result.item == null)
{
Console.WriteLine($"{result.message}");
}
else
{
Console.WriteLine($"{result.message} {result.item.ProductName}");
this.currentPurchases.Add(result.item);
}
Console.ReadLine();
}