/// <summary>
/// The focus can be set only after the animation has stopped playing.
/// </summary>
private void ExpandDetailsAddIntermediate_StoryboardCompleted(object sender, EventArgs e)
{
// Select the first parent set for quick entry.
ParentsListBox.SelectedIndex = 0;
IntermediateAddButton.Focus();
}
private void ParentsListBox_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
// Make it easy to add new people to the tree by pressing return
IntermediateAddButton.Focus();
}