Multi-variable switch statement in C#

Question

I would like use a switch statement which takes several variables and looks like this:

switch (intVal1, strVal2, boolVal3)
{
   case 1, \"hello\", false:
            


        

Answer 1

There is (was) no built-in functionality to do this in C#, and I don't know of any library to do this.

Here is an alternative approach, using Tuple and extension methods:

using System;

static class CompareTuple {
    public static bool Compare(this Tuple value, T1 v1, T2 v2, T3 v3) {
        return value.Item1.Equals(v1) && value.Item2.Equals(v2) && value.Item3.Equals(v3); 
    }
}

class Program {
    static void Main(string[] args) {
        var t = new Tuple(1, 2, false);
        if (t.Compare(1, 1, false)) {
            // 1st case
        } else if (t.Compare(1, 2, false)) {
            // 2nd case
        } else { 
            // default
        }
    }
}

This is basically doing nothing more than providing a convenient syntax to check for multiple values - and using multiple ifs instead of a switch.