Get Description Attributes From a Flagged Enum

Question

I am trying to create an extension method that will return a List containing all the Description attributes for only the set values o

Answer 1

You can iterate all values from enum and then filter them that isn't contained into your input value.

    public static List GetAttributesByFlags(this Enum arg) where T: Attribute
    {
        var type = arg.GetType();
        var result = new List();
        foreach (var item in Enum.GetValues(type))
        {
            var value = (Enum)item;
            if (arg.HasFlag(value)) // it means that '(arg & value) == value'
            {
                var memInfo = type.GetMember(value.ToString())[0];
                result.Add((T)memInfo.GetCustomAttribute(typeof(T), false));
            }
        }
        return result;
    }

And you get list of attributes that you want:

var arg = Result.Value1 | Result.Value4;
List attributes = arg.GetAttributesByFlags();