SelectionChanged Event not firing in LongListSelector

Question

I am trying to play Youtube videos which are populated in a LongListSelector. The videos are playing without any issue but when i hit back to come back to the page where LongListSelector is, i am no longer able to play the same video again. The SelectionChanged event is not firing on the videos that i have played. the tilteffect is there when i tap the video but nothing else.

private void MainListBox_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            LongListSelector longListSelector = sender as LongListSelector;

            if (longListSelector != null && longListSelector.SelectedItem != null)
            {
                // Get the SyndicationItem that was tapped.
                YoutubeVideo video = (YoutubeVideo)longListSelector.SelectedItem;
                NavigationService.Navigate(new Uri("/DetailsPage.xaml?VideoId=" + video.Id , UriKind.Relative));
            }
        }

possible duplicate of [LongListSelector: Item tap?](http://stackoverflow.com/questions/14215227/longlistselector-item-tap) — Jedidja, Jun 09 '14 at 19:36

score 1 · Accepted Answer · answered Mar 18 '14 at 20:25

Could you post your selection changed event? I think that issue is happening because you didn't reset the selected item. Try this out:

    private void longListSelector_SelectionChanged(object sender, SelectionChangedEventArgs e)
    {
        // If selected item is null (no selection) do nothing
        if (longListSelector.SelectedItem == null)
            return;

        // Do some work here

        // Reset selected item to null (no selection)
        longListSelector.SelectedItem = null;
    }

Glad to hear!!! The event wasn't firing off again because the video was already selected :) — Julian J. Tejera, Mar 18 '14 at 20:33

SelectionChanged Event not firing in LongListSelector

1 Answers1