How do I determine if an Enum value has one or more of the values it's being compared with?

Question

I\'ve got an Enum marked with the [Flags] attribute as follows:

[Flags]
public enum Tag : int
{
    None = 0,
    PrimaryNav = 1,
    HideChildPages = 2,
            


        

Answer 1

That's a classic Extension method:

    public static bool HasFlag(this Enum val, Enum t)
    {
            return (Convert.ToUInt64(val) & Convert.ToUInt64(t)) != 0;
    }