Access "this" inside of static codeblocks

Question

Lately I've found myself writing alot of classes similar to:

public class MyTypeCodes
{
    public static MyTypeCode E = new MyTypeCode{ Desc= "EEE", Value = "E" };
    public static MyTypeCode I = new MyTypeCode { Desc= "III", Value = "I" };

    private static readonly Lazy<IEnumerable<MyTypeCode>> AllMyTypeCodes =
        new Lazy<IEnumerable<MyTypeCode>>(() =>
        {
            var typeCodes = typeof(MyTypeCodes)
                 .GetFields(BindingFlags.Static | BindingFlags.Public)
                 .Where(x => x.FieldType == typeof (MyTypeCode))
                 .Select(x => (MyTypeCode) x.GetValue(null))
                 .ToList();

                 return typeCodes;
        });

    public static IEnumerable<MyTypeCode> All
    {
        get { return AllMyTypeCodes.Value; }
    }
}

If you notice inside of new Lazy<IEnumerable<MyTypeCode>>(() => that I specifically need to do typeof(MyTypeCodes) even though I'm inside of class MyTypeCodes. Is there any way I can write this without specifically need to call typeof() for the class i'm specifically inside of? If this was a regular method I would this.GetType() which obviously doesn't work (for some reason) with statics.

Answer 1

Is there any way I can write this without specifically need to call typeof() for the class i'm specifically inside of?

No, this is likely the best option. If you know you are never going to add any other fields, of any other types, you can just skip the Where clause.

In addition, you should use ToList() to prevent the IEnumerable<T> generated from having to rerun each time it's enumerated:

private static readonly Lazy<IEnumerable<MyTypeCode>> AllMyTypeCodes =
    new Lazy<IEnumerable<MyTypeCode>>(() =>
    {
        return typeof(MyTypeCodes)
             .GetFields(BindingFlags.Static | BindingFlags.Public)
             // If you're not using any other fields, just skip this
             // .Where(x => x.FieldType == typeof (MyTypeCode ))
             .Select(x => (MyTypeCode) x.GetValue(null))
             .ToList();                 
    });