private void SearchBar_TextChanged(object sender, TextChangedEventArgs e)
{
if (SearchBar.Text?.Length > 2)
{
//viewModel.LoadSearchResultsCommand.Execute(SearchBar.Text);
Interlocked.Exchange(ref this.throttleCts, new CancellationTokenSource()).Cancel();
Task.Delay(TimeSpan.FromMilliseconds(500), this.throttleCts.Token) // if no keystroke occurs, carry on after 500ms
.ContinueWith(
delegate { viewModel.LoadSearchResultsCommand.Execute(SearchBar.Text); },
CancellationToken.None,
TaskContinuationOptions.OnlyOnRanToCompletion,
TaskScheduler.FromCurrentSynchronizationContext());
}
else
{
viewModel.ClearResults();
}
}
