private static void OnSetCommandParameterCallback(DependencyObject dependencyObject, DependencyPropertyChangedEventArgs e)
{
TreeView menuItem = dependencyObject as TreeView;
if (menuItem != null)
{
TreeViewCommandBehavior behavior = GetOrCreateBehavior(menuItem);
behavior.CommandParameter = e.NewValue;
}
}
private static TreeViewCommandBehavior GetOrCreateBehavior(TreeView menuItem)
{
TreeViewCommandBehavior behavior = menuItem.GetValue(SelectedCommandBehaviorProperty) as TreeViewCommandBehavior;
if (behavior == null)
{
behavior = new TreeViewCommandBehavior(menuItem);
menuItem.SetValue(SelectedCommandBehaviorProperty, behavior);
}
return(behavior);
}