/// <summary>
/// Override for clearing a container.
/// </summary>
/// <param name="element">The element dependency object.</param>
/// <param name="item">The item object.</param>
protected override void ClearContainerForItemOverride(DependencyObject element, object item)
{
base.ClearContainerForItemOverride(element, item);
this.containersByItem.Remove(item);
ISplitItemsControl splitItemsControl = item as ISplitItemsControl;
if (splitItemsControl == null)
{
FrameworkElement frameworkElement = item as FrameworkElement;
if (frameworkElement != null && !string.IsNullOrEmpty(CascadingListBoxGroup.GetCascadingListBoxName(frameworkElement)))
{
splitItemsControl = frameworkElement.FindName(CascadingListBoxGroup.GetCascadingListBoxName(frameworkElement)) as ISplitItemsControl;
}
}
if (splitItemsControl != null)
{
this.containersBySplitItemsControl.Remove(splitItemsControl);
}
}
/// <summary>
/// Override for preparing the container.
/// </summary>
/// <param name="element">The element dependency object.</param>
/// <param name="item">The item object.</param>
protected override void PrepareContainerForItemOverride(DependencyObject element, object item)
{
base.PrepareContainerForItemOverride(element, item);
ContentPresenter container = element as ContentPresenter;
this.containersByItem.Add(item, container);
DependencyObject dependencyObject = item as DependencyObject;
if (dependencyObject != null)
{
CascadingListBoxGroup.SetCascadingListBoxGroup(dependencyObject, this);
LinkingWrapPanel.SetIsLinkedToNextChild(container, LinkingWrapPanel.GetIsLinkedToNextChild(dependencyObject));
this.UpdateListVisibility(dependencyObject);
}
#if SILVERLIGHT
Canvas.SetZIndex(container, this.Items.Count - this.Items.IndexOf(item));
#endif
ISplitItemsControl splitItemsControl = item as ISplitItemsControl;
if (splitItemsControl == null)
{
FrameworkElement frameworkElement = item as FrameworkElement;
if (frameworkElement != null && !string.IsNullOrEmpty(CascadingListBoxGroup.GetCascadingListBoxName(frameworkElement)))
{
splitItemsControl = frameworkElement.FindName(CascadingListBoxGroup.GetCascadingListBoxName(frameworkElement)) as ISplitItemsControl;
}
}
if (splitItemsControl != null)
{
CascadingListBoxGroup.SetCascadingListBoxGroup(splitItemsControl as DependencyObject, this);
this.containersBySplitItemsControl.Add(splitItemsControl, container);
}
}