c# - issues customizing List into ListCustomMinIndexedForEach (stripped from irelevant implementations)

I tried to do my best to keep the title short but still informative.

I think I have succeeded with most of it

my problem For Now:(TLDR below)

I could not succeed implementing a public void method-member, nor an extension to Implement custom ForEach() with index..

as Extension

    public static ListWithCounter ForEach(this  ListWithCounter Self, Action itm)//, ListWithCounter l = l.CurId)
    {

        for (int i = 0; i < Self.Count; i++)
        {
            Self.CurId = i;
            itm(Self[i]);Self.CurId++;

        }
        return Self;

    }

this is a small issue I guess, the objectives :

• Create Customized List No Fancy Extra(Expensive) methods




• add an elegant ForEach implementation



• optional tricks like out of the box GetEnumValues/names . To{ourCustomList}()

USAGE

in this example I am using an Enum ( names of Actions also used to present action items in console menu)

public enum ActSrptS { CreateMmfTfomFile_DoFormat, OpenExitMmfT, .... }

so I print it to console by unleashing the power of That small List class

                                    //a struct ConsoleModifiers + ConsoleKey
ActScrptS aAction = ActScrptS._Start; Combination Comb = new Combination();
var actS = aAction._EnmGetValues();
var actSNms = aAction.EnumGetNamesToList().ForEach(Act =>
{
   Console.WriteLine("[{0}]{1}", actS.CurId, Act);
});
Console.WriteLine("===============\r\n");
Console.WriteLine("please Select Action");

and it's simply using (TRYING without success for now..)

public static ListWithCounter EnumGetNamesToList(this Enum selfEnum)
{
    return selfEnum.GetType().GetFields(BindingFlags.Static | BindingFlags.Public)
            .Select(f=>f.Name).ToList();
        //var values = Enum.GetNames(typeof(selfEnum)).ToList();
            //return values;
        //var values = Enum.GetValues(typeof(Environment.SpecialFolder)).Cast().ToList();


}



public static ListWithCounter _EnmGetValues(this Enum Self)
{
    ListWithCounter enumerations = new ListWithCounter();
    foreach (FieldInfo fieldInfo in Self.GetType().GetFields(
              BindingFlags.Static | BindingFlags.Public))

        {
            enumerations.Add((Enum)fieldInfo.GetValue(Self));
        }
    return enumerations;
}

so I started with MSDN List.cs

and I tried to implement as less methods as possible

• leaving minimal important functionality


• altering Growth/Expand for -minimal copying so staring capacity is from say 10-50, multiplied by *4 on each limit...

came out with this CODE