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

You can also implement conversion method as follows:

public static class Extensions
{
    public static ConvertType Convert(this Enum e)
    {
        object o = null;
        Type type = typeof(ConvertType);

        if (type == typeof(int))
        {
            o = Convert.ToInt32(e);
        }
        else if (type == typeof(long))
        {
            o = Convert.ToInt64(e);
        }
        else if (type == typeof(short))
        {
            o = Convert.ToInt16(e);
        }
        else
        {
            o = Convert.ToString(e);
        }

        return (ConvertType)o;
    }
}

Here is an example usage:

int a = MyEnum.A.Convert();