System.Collections.ListDictionaryInternal.NodeKeyValueCollection.NodeKeyValueEnumerator.MoveNext C# (CSharp) Méthode

                public bool MoveNext() {
                    if (version != list.version) {
                        throw new InvalidOperationException(Environment.GetResourceString("InvalidOperation_EnumFailedVersion"));
                    }
                    if (start) {
                        current = list.head;
                        start = false;
                    }
                    else {
                        if( current != null) {
                            current = current.next;
                        }
                    }
                    return (current != null);
                }