Generic extension method to see if an enum contains a flag

Question

Considering this:

[Flags]
public enum MyEnum {
    One = 1,
    Two = 2,
    Four = 4,
    Eight = 8
}

public static class FlagsHelper
{
    public static bool          


        

Answer 1

This is an example of something that should work.

public static bool IsValid(this T value)
{
    return Enum.IsDefined(value.GetType(), value);
}