private void SearchTextBox_PreviewKeyDown(object sender, KeyEventArgs e)
{
if (e.Key == Key.Down)
{
if (ResultsOpen)
{
var items = GetResultItems().ToList();
var nextIndex = items.IndexOf(SelectedResultItem) + 1;
if (nextIndex < items.Count)
{
items[nextIndex].IsSelected = true;
e.Handled = true;
}
}
}
else if (e.Key == Key.Up)
{
if (ResultsOpen)
{
var items = GetResultItems().ToList();
var prevIndex = items.IndexOf(SelectedResultItem) - 1;
if (prevIndex >= 0)
{
items[prevIndex].IsSelected = true;
e.Handled = true;
}
}
}
else if (e.Key == Key.Tab || e.Key == Key.Enter)
{
if (ResultsOpen)
{
SelectResultItemCommand?.Execute(SelectedResultItem.DataContext);
if (e.Key == Key.Enter)
{
e.Handled = true;
}
}
}
}
private void OnResultItemClicked(object sender, RoutedEventArgs e)
{
ResultItem item = e.OriginalSource as ResultItem;
SelectResultItemCommand?.Execute(item.DataContext);
}
