private void Open_Quiz_Clicked(object sender, EventArgs e) { OpenFileDialog dialog = new OpenFileDialog(); String path = Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location); dialog.InitialDirectory = path + "\\quizzes\\"; dialog.DefaultExt = ".txt"; dialog.Filter = "Text documents (.txt)|*.txt"; Nullable <bool> result = dialog.ShowDialog(); if (result == true) { if (QuizControl.loadQuiz(dialog.FileName)) { CloseQuizMenuItem.IsEnabled = true; JumpToFinalQuestionMenuItem.IsEnabled = true; } else { } } else { } }