private static void OnItemsSourceChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e)
{
JumpListBox jumpListBox = sender as JumpListBox;
if (jumpListBox == null)
{
throw new ArgumentException("The sender must be a JumpListBox");
}
IEnumerable items = e.NewValue as IEnumerable;
var collection = new AlphabetizedCollection(jumpListBox.IndexedMember, jumpListBox.ImageMember);
collection.AddRange(items);
_orderedCollection = collection.OrderBy(c => c.FirstLetter).ToList();
jumpListBox.mainListBox.DataContext = null;
jumpListBox._jumpListSelector.ItemsSource = collection;
if (jumpListBox.IsPumped)
{
PumpList <AlphabetizedItemContainer> pumpList =
new PumpList <AlphabetizedItemContainer>(_orderedCollection);
jumpListBox.mainListBox.ItemsSource = pumpList.Items;
pumpList.StartPump();
}
else
{
jumpListBox.mainListBox.ItemsSource = _orderedCollection;
}
}
private static void OnSelectedItemChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e)
{
JumpListBox jumpListBox = sender as JumpListBox;
if (jumpListBox == null)
{
throw new ArgumentException("The sender must be a JumpListBox");
}
if (e.NewValue == null)
{
jumpListBox.mainListBox.SelectedItem = null;
}
}
private static void OnItemTemplateChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e)
{
JumpListBox jumpListBox = sender as JumpListBox;
if (jumpListBox == null)
{
throw new ArgumentException("The sender must be a JumpListBox");
}
DataTemplate template = e.NewValue as DataTemplate;
if (template == null)
{
throw new ArgumentException("The template must be a DataTemplate");
}
jumpListBox.mainListBox.ItemTemplate = template;
}