Question

I have a String Collection that is populated with ID’s like so –>

12345
23456
34567

and so on. What I need to do is at the user’s request, and when certain parameters are met, go through that list, starting at the top, and perform a method() using that ID. If successful I would remove it from the list and move on.

I, embarrassingly, have never worked with a collection before in this manner. Can someone point me in the right direction. Examples all seem to be of the Console.Writeline(""); variety.

My base, ignorant, attempt looks like this –>

 var driUps = Settings.Default.DRIUpdates.GetEnumerator();
        while (driUps.MoveNext())
        {
            var wasSuccessfull = PerformDRIUpdate(driUps.Current);
            if (wasSuccessfull)
            {
                driUps.Current.Remove(driUps.Current.IndexOf(driUps.Current));
            }
        }

The part I am most concerned with is the Remove(); Isn’t there a better way to get the Current Index? Any and all Tips, Hints, Criticism, Pointers, etc….welcome. Thanks!

Answer 1

You are quite right to be concerned about the ‘remove’ during enumeration. How about somethign like this:

int idx = 0;
while (idx < strCol.Count)
{
    var wasSuccessful = PerformDRIUpdate(strCol[idx]);
    if (wasSuccessful)
        strCol.RemoveAt(idx);
    else
        ++idx;
}