title: how Search in C# Universal
body: <p>I have 10 file.txt in my app. and I want to search in this files and show to the user, I Use SearchBox In My Xaml.</p>
  
  <p>I create Page For My Search Box, the page name: SearchResultsPage1, But I Don't Know Who Should I Search In My Files, And Show The Result To User (Or Show Result In My Page (SearchResultsPage1)), </p>