CODEWITHSUNDEEP
c#genericstypes
Jake
Jake

Reputation: 11430

Use Type argument as return type

Is it possible to do something like this:

public static T ToEnum<T>(this string s, Type T)
{
    return (T)Enum.Parse(typeof(T), s);
}

Or in some other way, that is, using the argument T as the return type?

Upvotes: 1

Views: 124

Answers (3)

Peter PAD
Peter PAD

Reputation: 2310

You can do this

public static class Extensions
{
    public static T ToEnum<T>(this string s) where T : struct
    {
        return (T)Enum.Parse(typeof(T), s);
    }
}

public enum TestEnum
{
    None,

    Special,
}

class Program
{
    static void Main(string[] args)
    {
        var x = TestEnum.Special.ToString();
        var y = x.ToEnum<TestEnum>(); // y will be TestEnum.Special
    }
}

Upvotes: 4

schglurps
schglurps

Reputation: 1387

Yes, it's possible, juste remove the second parameter of your method (it's totally useless) ans it will work (I tested the code) !

Upvotes: 1

Kristoffer
Kristoffer

Reputation: 834

Sure, you can do it like this:

public static T ToEnum<T>(this string s)
{
    return (T)Enum.Parse(typeof(T), s);
}

Then you call it like this:

string s = "Red";
Color color = s.ToEnum<Color>();

Upvotes: 1

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