John has developed a Windows Store app for viewing images. This app contains a list of images. When a user clicks an image in the list, a larger view of the image is displayed, as shown in the following figure.

John has developed a Windows Store app for viewing images. This app contains a list of images.
When a user clicks an image in the list, a larger view of the image is displayed, as shown in the
following figure.
The Larger View of the Image
In the existing app, the images are statically added. Now, John has been assigned the task to
update the app so that the users can dynamically add images to the app. The app must have the
following functionalities:
It should allow the users to add image files from the Pictures folder through a button on the App
bar.
It should allow the users to add the .JPG, .PNG, and .BMP files.
Help John to implement the required functionality in the app.

Solution;

DOWNLOAD from here:

https://drive.google.com/file/d/0BzDgK7VFVLaKejVZLTNXWDR6UlU/edit?usp=sharing