Get a List of my enum attributes with a generic method

Question

At start, we have this basic enum.

public enum E_Levels {

    [ValueOfEnum(\"Low level\")]
    LOW,

    [ValueOfEnum(\"Normal level\")]
    NORMAL,

    [V         


        

Answer 1

.Net already has the same attribute Description so you can use this one instead ValueOfEnum.

What about dynamic and extension on type and following example

[TestFixture]
public sealed class ForTest
{
    [Test]
    public void Test()
    {
        var values = typeof(Levels).ToValues();
        values.ForEach(Console.WriteLine);
    }
}

public static class TypeExtensions
{
    public static List ToValues(this Type value)
    {
        var result = new List();
        var values = ToConcreteValues(value);
        foreach (dynamic item in values)
        {
            Description attribute = GetAttribute(item);
            result.Add(attribute.Description);
        }
        return result;
    }

    private static dynamic ToConcreteValues(Type enumType)
    {
        Array values = Enum.GetValues(enumType);
        Type list = typeof (List<>);
        Type resultType = list.MakeGenericType(enumType);
        dynamic result = Activator.CreateInstance(resultType);
        foreach (object value in values)
        {
            dynamic concreteValue = Enum.Parse(enumType, value.ToString());
            result.Add(concreteValue);
        }
        return result;
    }

    private static TAttribute GetAttribute(dynamic value)
        where TAttribute : Attribute
    {
        Type type = value.GetType();
        FieldInfo fieldInfo = type.GetField(Enum.GetName(type, value));
        return (TAttribute) Attribute.GetCustomAttribute(fieldInfo, typeof (TAttribute));
    }
}

public enum Levels
{
    [Description("Low level")]LOW,
    [Description("Normal level")] NORMAL,
    [Description("High level")] HIGH
}

result output:

Low level
Normal level
High level