System.Configuration.ConfigurationElementCollection.BaseIndexOf C# (CSharp) Метод

        protected int BaseIndexOf(ConfigurationElement element) {
            int index = 0;
            Object key = GetElementKeyInternal(element);
            foreach (Entry entry in _items) {
                if (entry._entryType != EntryType.Removed) {
                    if (CompareKeys(key, entry.GetKey(this))) {
                        return index;
                    }
                    index++;
                }
            }
            return -1;
        }