Question

As a follow on from this question.

How can I call a function and pass in an Enum?

For example I have the following code:

enum e1 {     //... }  public void test() {     myFunc( e1 ); }  public void myFunc( Enum e ) {     var names = Enum.GetNames(e.GetType());      foreach (var name in names)     {         // do something!     }  } 

Although when I do this I am getting the ‘e1’ is a ‘type’ but is used like a ‘variable’ Error message. Any ideas to help?

I am trying to keep the function generic to work on any Enum not just a specific type? Is this even possible?… How about using a generic function? would this work?

Answer 1

You can use a generic function:

    public void myFunc<T>()     {         var names = Enum.GetNames(typeof(T));          foreach (var name in names)         {             // do something!         }     } 

and call like:

    myFunc<e1>(); 

(EDIT)

The compiler complains if you try to constraint T to Enum or enum.

So, to ensure type safety, you can change your function to:

    public static void myFunc<T>()     {         Type t = typeof(T);         if (!t.IsEnum)             throw new InvalidOperationException('Type is not Enum');          var names = Enum.GetNames(t);         foreach (var name in names)         {             // do something!         }     }