In this, the 5th, installment of Windows 8, What I’ve learned, I’m going to share a single line of code that can make your search-enabled Windows Store app absolutely awesome!
Start by enabling Search
For starters, if you haven’t enabled the Search contract in your app, you probably should. Unless your app is a game or other kind of app that has no content to search, implementing the Search contract will enable your users to more easily find content in your app, whether it’s running or not, and allow them to do so via a consistent UI that’s part of Windows 8 itself: