public static void AddOrder(ref RestaurantManager restaurantManager)
{
Console.WriteLine("Enter Menu Number");
string orderNo = Console.ReadLine();
while (string.IsNullOrWhiteSpace(orderNo))
{
Console.WriteLine("Error! Enter the order number correctly!");
orderNo = Console.ReadLine();
}
Console.WriteLine("Enter the count:");
string countStr = Console.ReadLine();
int count;
while (!int.TryParse(countStr, out count) || count < 1)
{
Console.WriteLine("Error! Enter the count correctly!");
countStr = Console.ReadLine();
}
try
{
restaurantManager.AddOrder(orderNo, count);
Console.WriteLine("Order added successfully!");
}
catch (OrderNotFoundException ex)
{
Console.WriteLine("Error: " + ex.Message);
}
}