/// <summary>
/// Sets the selected item to the clicked item.
/// </summary>
/// <param name="sender">The cascading list box item.</param>
/// <param name="e">Mouse Button Event Args.</param>
private void CascadingListBoxItem_PreviewMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
CascadingListBoxItem cascadingListBoxItem = sender as CascadingListBoxItem;
if (cascadingListBoxItem != null)
{
this.SelectedItem = cascadingListBoxItem.Content;
}
}
/// <summary>
/// Updates the currently focused item.
/// </summary>
/// <param name="sender">The cascading list box item.</param>
/// <param name="e">Routed Event Args.</param>
private void CascadingListBoxItem_GotFocus(object sender, RoutedEventArgs e)
{
CascadingListBoxItem cascadingListBoxItem = sender as CascadingListBoxItem;
if (cascadingListBoxItem != null)
{
this.focusedItem = cascadingListBoxItem.Content;
}
}
/// <summary>
/// Prepares the container.
/// </summary>
/// <param name="element">The list box item.</param>
/// <param name="item">The item object.</param>
protected override void PrepareContainerForItemOverride(DependencyObject element, object item)
{
base.PrepareContainerForItemOverride(element, item);
CascadingListBoxItem cascadingListBoxItem = element as CascadingListBoxItem;
if (cascadingListBoxItem != null)
{
cascadingListBoxItem.GotFocus += new RoutedEventHandler(this.CascadingListBoxItem_GotFocus);
cascadingListBoxItem.LostFocus += new RoutedEventHandler(this.CascadingListBoxItem_LostFocus);
cascadingListBoxItem.ItemSelected += new EventHandler <SelectedEventArgs>(this.CascadingListBoxItem_Selected);
#if !SILVERLIGHT
cascadingListBoxItem.PreviewMouseLeftButtonDown += new MouseButtonEventHandler(this.CascadingListBoxItem_PreviewMouseLeftButtonDown);
#endif
if (!this.containersByItem.ContainsKey(item))
{
this.containersByItem.Add(item, cascadingListBoxItem);
}
else
{
this.containersByItem[item] = cascadingListBoxItem;
}
#if !SILVERLIGHT
if (this.IsExpanded && this.IsFocused && (this.ConfirmedSelectedItem == item || this.SelectedItem == item))
{
cascadingListBoxItem.Focus();
}
#endif
if (item == this.ConfirmedSelectedItem)
{
cascadingListBoxItem.IsSelectedValue = true;
}
}
}
