Are static indexers not supported in C#? [duplicate]

Question

I've been trying this a few different ways, but I'm reaching the conclusion that it can't be done. It's a language feature I've enjoyed from other languages in the past. Is it just something I should just write off?

Answer 1

No, static indexers aren't supported in C#. Unlike other answers, however, I see how there could easily be point in having them. Consider:

Encoding x = Encoding[28591]; // Equivalent to Encoding.GetEncoding(28591) Encoding y = Encoding["Foo"]; // Equivalent to Encoding.GetEncoding("Foo") 

It would be relatively rarely used, I suspect, but I think it's odd that it's prohibited - it gives asymmetry for no particular reason as far as I can see.

Answer 2

You can simulate static indexers using static indexed properties:

public class MyEncoding {     public sealed class EncodingIndexer     {         public Encoding this[string name]         {             get { return Encoding.GetEncoding(name); }         }          public Encoding this[int codepage]         {             get { return Encoding.GetEncoding(codepage); }         }     }      private static EncodingIndexer StaticIndexer;      public static EncodingIndexer Items     {         get { return StaticIndexer ?? (StaticIndexer = new EncodingIndexer()); }     } } 

Usage:

Encoding x = MyEncoding.Items[28591]; // Equivalent to Encoding.GetEncoding(28591)    Encoding y = MyEncoding.Items["Foo"]; // Equivalent to Encoding.GetEncoding("Foo")