How to Generate random images through numbers c#?

Question

I am making an app in which 4 chits are to be thrown randomly. I am done with generating random numbers by clicking on a button random numbers are generated between 1 to 4.

My question is how do I associate the 4 images with those numbers? Suppose if 1 comes randomly - then 1.jpg should be displayed. My programming language is c# and working in Visual studio 2012.

public sealed partial class MainPage : Page

{

   Random rand = new Random();

 public MainPage()
    {

        this.InitializeComponent();
    }

    protected override void OnNavigatedTo(NavigationEventArgs e)
    {
    }

    private void Button_Click_1(object sender, RoutedEventArgs e)
    {
        int num=rand.Next(1,5);
        textblock1.Text=num.ToString();
    }}}

i m showing the numbers in a textblock .now i have 4 images which i have to display randomly.,my question is how and where to display them .

Answer 1

Done used this method

private void Button_Click_1(object sender, RoutedEventArgs e)

    {

        Random rand = new Random();
        int dice = rand.Next(1, 5);

        switch (dice)
        {
            case 1:

                Image1.Source = new BitmapImage(new Uri(@"ms-appx:///Assets/1.png"));

                break;
            case 2:

                two.Source = new BitmapImage(new Uri(@"ms-appx:///Assets/2.png"));
                break;
            case 3:

                three.Source = new BitmapImage(new Uri(@"ms-appx:///Assets/3.png"));
                break;
            case 4:

                four.Source = new BitmapImage(new Uri(@"ms-appx:///Assets/4.png"));
                break;

        }

    }for bitmap image refrence will be "using Windows.UI.Xaml.Media.Imaging;"