wtuts

public App()
        {
            this.InitializeComponent();
            this.Suspending += this.OnSuspending;
            HardwareButtons.BackPressed += HardwareButtons_BackPressed;
        }

        private void HardwareButtons_BackPressed(object sender, BackPressedEventArgs e)
        {
            var rootFrame = Window.Current.Content as Frame;

wtuts

 private ObservableCollection<Schema.Students> Mylist; 

        protected async override void OnNavigatedTo(NavigationEventArgs e)
        {
            //Set the item Source if database exists
            bool check = await Database.DatabaseHelper.Checkdatabase();
            if (check)
            {
                Mylist = Database.DatabaseHelper.GetAllStudents();
                MylistView.ItemsSource = Mylist;

wtuts

<Grid>
        <TextBlock Margin="20,10,0,0"
                   HorizontalAlignment="Left"
                   VerticalAlignment="Top"
                   FontSize="36"
                   Text="All Students" />
        <ListView x:Name="MylistView"
                  Margin="20,80,20,20"
                  HorizontalAlignment="Stretch"
                  VerticalAlignment="Stretch">

wtuts

private async void Insert_Button_Click(object sender, RoutedEventArgs e)
        {
            //Creating a new data object

            var obj = new Database.Schema.Students
            {
                Name = NameBox.Text,
                Marks = Convert.ToInt32(MarksBox.Text)
            };

wtuts

<Grid>
        <TextBlock Margin="20,10,0,0"
                   HorizontalAlignment="Left"
                   VerticalAlignment="Top"
                   FontFamily="Segoe UI"
                   FontSize="32"
                   Text="Add a new Student"
                   TextWrapping="Wrap" />
        <TextBlock Margin="20,80,0,0"
                   HorizontalAlignment="Left"

wtuts

<Grid>
        <Button Margin="10,30,10,0"
                HorizontalAlignment="Stretch"
                VerticalAlignment="Top"
                Click="Create_Database_Click"
                Content="Create the Database" />
        <Button Margin="10,90,10,0"
                HorizontalAlignment="Stretch"
                VerticalAlignment="Top"
                Click="Delete_Database_Click"

wtuts

  private void Display_All_Recods_Click(object sender, RoutedEventArgs e)
        {
            Frame.Navigate(typeof(Display));
        }

wtuts

private void Add_New_Record_Click(object sender, RoutedEventArgs e)
        {
            Frame.Navigate(typeof (AddRecord));
        }

wtuts

private async void Delete_Database_Click(object sender, RoutedEventArgs e)
        {
            var status = await Database.DatabaseHelper.DeleteDatabase();
            var content = status ? "Database Deleted" : "Doesn't Exists";
            var mm = new MessageDialog(content);
            await mm.ShowAsync();
        }

wtuts

 private async void Create_Database_Click(object sender, RoutedEventArgs e)
        {
            var status = await Database.DatabaseHelper.Createdatabase();
            var content = status ? "Database Created" : "Already Exists";
            var mm = new MessageDialog(content);
            await mm.ShowAsync();
        }