private void SubscriberBox_OnPreviewKeyUp(object sender, KeyEventArgs e)
{
if (e.Key == Key.Back || e.Key == Key.Space)
{
SubscriberBox.IsDropDownOpen = true;
var be = SubscriberBox.GetBindingExpression(ComboBox.TextProperty);
be.UpdateSource();
}
if (e.Key == Key.Up && SubscriberBox.IsDropDownOpen)
{
if (SubscriberBox.SelectedIndex != -1)
{
SubscriberBox.SelectedIndex = SubscriberBox.SelectedIndex - 1;
if (SubscriberBox.SelectedIndex == -1)
{
var be = SubscriberBox.GetBindingExpression(ComboBox.TextProperty);
be.UpdateSource();
}
}
}
if (e.Key == Key.Down && SubscriberBox.IsDropDownOpen)
{
if (SubscriberBox.SelectedIndex < SubscriberBox.Items.Count)
{
SubscriberBox.SelectedIndex = SubscriberBox.SelectedIndex + 1;
}
}
}
private void SubscriberBox_OnTextInput(object sender, TextCompositionEventArgs e)
{
SubscriberBox.IsDropDownOpen = true;
var be = SubscriberBox.GetBindingExpression(ComboBox.TextProperty);
be.UpdateSource();
}
