System.Configuration.ConfigurationElementCollection.Enumerator.IEnumerator C# (CSharp) Метод

            bool IEnumerator.MoveNext() {
                while (_itemsEnumerator.MoveNext()) {
                    Entry entry = (Entry)_itemsEnumerator.Current;
                    if (entry._entryType != EntryType.Removed) {
                        _current.Key = (entry.GetKey(ThisCollection) != null) ? entry.GetKey(ThisCollection) : "key";
                        _current.Value = entry._value;
                        return true;
                    }
                }
                return false;
            }