Question

I like to do something like this:

public static List<string> ItemsOfEnum(T typeT)
{
    List<string> items = new List<string>();
    foreach (typeT tItem in Enum.GetValues(typeof(typeT)))
       items.Add(tItem);
    return items;
}

How to get the “T” in the parameter-list without changing the return type (List)?

Answer 1

Seems to easy… but maybe that’s what you were looking for?

public static List<string> ItemsOfEnum<typeT>()
        where typeT: struct, IComparable, IFormattable, IConvertible {
    List<string> items = new List<string>();
    foreach (typeT tItem in Enum.GetValues(typeof(typeT)))
       items.Add(tItem.ToString());
    return items;
}

Note that C# doesn’t allow to constrain to enums, so those constraints are more or less the closes you can get.