Enumeration extension methods

Question

In vs2008, is it possible to write an extension methods which would apply to any enumeration.

I know you can write extension methods against a specific enumeration,

Answer 1

FYI Here is a great example of an Enum Extension method that I have been able to use. It implements a case insensitive TryParse() function for enums:

public static class ExtensionMethods
{
    public static bool TryParse(this Enum theEnum, string strType, 
        out T result)
    {
        string strTypeFixed = strType.Replace(' ', '_');
        if (Enum.IsDefined(typeof(T), strTypeFixed))
        {
            result = (T)Enum.Parse(typeof(T), strTypeFixed, true);
            return true;
        }
        else
        {
            foreach (string value in Enum.GetNames(typeof(T)))
            {
                if (value.Equals(strTypeFixed, 
                    StringComparison.OrdinalIgnoreCase))
                {
                    result = (T)Enum.Parse(typeof(T), value);
                    return true;
                }
            }
            result = default(T);
            return false;
        }
    }
}

You would use it in the following manner:

public enum TestEnum
{
    A,
    B,
    C
}

public void TestMethod(string StringOfEnum)
{
    TestEnum myEnum;
    myEnum.TryParse(StringOfEnum, out myEnum);
}

Here are the two sites that I visited to help come up with this code:

Case Insensitive TryParse for Enums

Extension methods for Enums