protected override void OnKeyUp(KeyEventArgs e)
{
base.OnKeyUp(e);
if (!e.Handled)
{
Key key = e.Key;
switch (key)
{
case Key.Left:
case Key.Right:
case Key.Up:
case Key.Down:
case Key.Add:
case Key.Subtract:
case Key.Space:
IEnumerable <TreeViewExItem> items = TreeViewElementFinder.FindAll(ParentTreeView, false);
TreeViewExItem focusedItem = items.FirstOrDefault(x => x.IsFocused);
if (focusedItem != null)
{
focusedItem.BringIntoView(new Rect(1, 1, 1, 1));
}
break;
}
}
}
public void BringIntoView(object item)
{
UpdateLayout();
TreeViewExItem tvei = GetTreeViewItemFor(item);
tvei.BringIntoView();
}