Intelligent way of removing items from a List while enumerating in C#

Question

I have the classic case of trying to remove an item from a collection while enumerating it in a loop:

List myIntCollection = new List()         


        

Answer 1

For those it may help, I wrote this Extension method to remove items matching the predicate and return the list of removed items.

    public static IList RemoveAllKeepRemoved(this IList source, Predicate predicate)
    {
        IList removed = new List();
        for (int i = source.Count - 1; i >= 0; i--)
        {
            T item = source[i];
            if (predicate(item))
            {
                removed.Add(item);
                source.RemoveAt(i);
            }
        }
        return removed;
    }