private void OnOpen(object sender, RoutedEventArgs e)
{
if (HelpDocTree.SelectedItem != null)
{
HelpDocTreeItem item = HelpDocTree.SelectedItem as HelpDocTreeItem;
item.IsExpanded = true;
}
}
private void OnKeyDown(object sender, KeyEventArgs e)
{
if (e.Key == Key.Enter)
{
HelpDocTreeItem item = HelpDocTree.SelectedItem as HelpDocTreeItem;
item.IsExpanded = !item.IsExpanded;
}
}
private void CloseItem(HelpDocTreeItem item)
{
foreach (var subitem in item.Items)
{
CloseItem(subitem as HelpDocTreeItem);
}
if (item.IsExpanded)
{
item.IsExpanded = false;
}
}
private void OnMouseDoubleClick(object sender, MouseButtonEventArgs e)
{
HelpDocTreeItem item = sender as HelpDocTreeItem;
if (item == null || !item.IsSelected)
{
return;
}
else
{
MouseDoubleClickEventHandler.Invoke(sender, e);
}
}
private void OpenItem(HelpDocTreeItem item)
{
item.ExpandSubtree();
}