private void navigationHelper_LoadState(object sender, LoadStateEventArgs e)
 {
     nm=new Data ();
     nm.Data_in();
     var SearchQuery = e.NavigationParameter.ToString().ToUpper();
     var ProblemsSearchResult = (from x in nm.mylist where x.Name.Contains(SearchQuery) select x).ToList<hotel>();
     showlist.ItemsSource = ProblemsSearchResult;
 }
 /// <summary>
 /// Populates the page with content passed during navigation. Any saved state is also
 /// provided when recreating a page from a prior session.
 /// </summary>
 /// <param name="sender">
 /// The source of the event; typically <see cref="NavigationHelper"/>
 /// </param>
 /// <param name="e">Event data that provides both the navigation parameter passed to
 /// <see cref="Frame.Navigate(Type, Object)"/> when this page was initially requested and
 /// a dictionary of state preserved by this page during an earlier
 /// session. The state will be null the first time a page is visited.</param>
 private void navigationHelper_LoadState(object sender, LoadStateEventArgs e)
 {
 }