Question

I have no idea why I’m getting this following error:

Control cannot fall through from one case label (‘case “h”:’) to another (CS0163)

Only for H and S – quite strange.

switch(myChoice)
{
    case "K":
    case "k":
        Console.WriteLine("You have chosen the Kanto region");
        break;
    case "O":
    case "o":
        Console.WriteLine("You have chosen the Orange Islands");
        break;
    case "J":
    case "j":
        Console.WriteLine("You have chosen the Johto region");
        break;
    case "H":
    case "h":
        Console.WriteLine("You have chosen the Hoenn region");
    case "S":
    case "s":
        Console.WriteLine("You have chosen the Sinoh region");
    case "U":
    case "u":
        Console.WriteLine("You have chosen the Unova region");
        break;
    case "R":
    case "r":
        Console.WriteLine("Return");
        break;
    default:
        Console.WriteLine("{0} is not a valid choice", myChoice);
        break;
}

Answer 1

Fallthrough only works when the case statement has no body. Since your “h” and “s” cases have code present, you need a break after them.

Additionally, as a suggestion: you could do a String.ToUpper() on your switch parameter so you can avoid having to check for both the lowercase and uppercase variants of myChoice. Your switch statement then becomes:

switch(myChoice.ToUpper())
{
    case "K":
        Console.WriteLine("You have chosen the Kanto region");
        break;
    case "O":
        ...
}