protected override List <AutomationPeer> GetChildrenCore()
{
ListBox lb = OwnerListTimePickerPopup.ListBoxPart;
if (lb != null)
{
// if possible, delegate to ListBox.
ListBoxAutomationPeer peer = (ListBoxAutomationPeer)CreatePeerForElement(lb);
return(peer.GetChildren());
}
else
{
return(base.GetChildrenCore());
}
}
/// <summary>
/// Retrieves a UI Automation provider for each child element that is
/// selected.
/// </summary>
/// <returns>An array of UI Automation providers.</returns>
public IRawElementProviderSimple[] GetSelection()
{
ListBox lb = OwnerListTimePickerPopup.ListBoxPart;
if (lb != null)
{
object selectedItem = lb.SelectedItem;
if (selectedItem != null)
{
AutomationPeer peer = null;
// check if the selecteditem is an UIElement
UIElement uie = selectedItem as UIElement;
if (uie != null)
{
peer = CreatePeerForElement(uie);
}
else
{
ListBoxAutomationPeer lbpeer = CreatePeerForElement(lb) as ListBoxAutomationPeer;
if (lbpeer != null)
{
List <AutomationPeer> children = lbpeer.GetChildren();
if (children != null)
{
peer = children.FirstOrDefault(child =>
{
// ISelectionItemProvider.IsSelected does not yet give the correct information
ListBoxItemAutomationPeer listboxitemPeer = child as ListBoxItemAutomationPeer;
if (listboxitemPeer != null)
{
ListBoxItem item = listboxitemPeer.Owner as ListBoxItem;
return(item != null && item.DataContext.Equals(selectedItem));
}
return(false);
});
}
}
}
// we only ever expect to return an array of one peer.
if (peer != null)
{
return(new[] { ProviderFromPeer(peer) });
}
}
}
return(new IRawElementProviderSimple[] { });
}