private void GenerateQuestion()
        {
            switch (App.lesson)
            {
            case 1:
            {
                App.data = QuesGroup.CreateNumbersQuestion(App.ctr1);
                break;
            }

            case 2:
            {
                App.data = QuesGroup.CreateHCFandLCMQuestion(App.ctr1);
                break;
            }

            case 3:
            {
                App.data = QuesGroup.CreateAverageQuestion(App.ctr1);
                break;
            }

            case 4:
            {
                App.data = QuesGroup.CreateoddOneOutQuestion(App.ctr1);
                break;
            }

            case 5:
            {
                App.data = QuesGroup.CreatePercentageQuestion(App.ctr1);
                break;
            }
            }
        }
 public QuesPage()
 {
     //  App.ctr1 = 1;
     //TitleText.Text=QuesGroup.GenerateTitle(App.lesson);
     App.max = QuesGroup.GenerateMaximum(App.lesson);
     BuildLocalizedApplicationBar();
     InitializeComponent();
     DataContext = App.data;
 }