C#•3y ago

❔ My code repeats my menu everytime a invalid character is added - i want to display a error message

My menu works but I want to display a error message if the user enters a invalid character. I was thinking of adding a else statement but that would just display Invalid try again even if it is right aswell. I'm unsure where to put this in a repeating while loop https://github.com/AbdulRaheemNazir/Mini-Apps-Working/blob/main/Menu%20Help Code here

2 Replies

mtreit•3y ago

I would probably do something like this:

while (true)
{
    Console.WriteLine("Select an option.");
    Console.WriteLine("1) Do something");
    Console.WriteLine("2) Do something else");
    Console.WriteLine("3) Quit");

    var choice = Console.ReadKey().KeyChar;
    Console.WriteLine();
    Console.WriteLine($"You chose {choice}.");
    Console.WriteLine();

    if (choice == '3')
    {
        break;
    }

    switch (choice)
    {
        case '1':
            Console.WriteLine("Something.");
            break;
        case '2':
            Console.WriteLine("Something else.");
            break;
        default:
            Console.WriteLine("Invalid, try again.");
            break;
    }

    Console.WriteLine();
}

Console.WriteLine("Done.");

while (true)
{
    Console.WriteLine("Select an option.");
    Console.WriteLine("1) Do something");
    Console.WriteLine("2) Do something else");
    Console.WriteLine("3) Quit");

    var choice = Console.ReadKey().KeyChar;
    Console.WriteLine();
    Console.WriteLine($"You chose {choice}.");
    Console.WriteLine();

    if (choice == '3')
    {
        break;
    }

    switch (choice)
    {
        case '1':
            Console.WriteLine("Something.");
            break;
        case '2':
            Console.WriteLine("Something else.");
            break;
        default:
            Console.WriteLine("Invalid, try again.");
            break;
    }

    Console.WriteLine();
}

Console.WriteLine("Done.");

Accord•2y ago

Looks like nothing has happened here. I will mark this as stale and this post will be archived until there is new activity.

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❔ My code repeats my menu everytime a invalid character is added - i want to display a error message