Ryan has developed the Notes app. The app allows a user to add, edit, and view notes. Now, Ryan wants to enable the users to take a backup of all the notes that are added in the app.

Ryan has developed the Notes app. The app allows a user to add, edit, and view notes. Now,
Ryan wants to enable the users to take a backup of all the notes that are added in the app. The
backup of the notes should be stored in a single plain text file named Notes.txt in Documents
Library when the user taps the Save to File button in the app bar of the Notes page.
Help Ryan to implement the preceding functionality.

Solution;

DOWNLOAD from here:

https://drive.google.com/file/d/0BzDgK7VFVLaKRmVIYTdvUWR5Z1U/edit?usp=sharing