private static void OnSetCommandParameterCallback(DependencyObject dependencyObject, DependencyPropertyChangedEventArgs e)
{
XamDataTree tree = dependencyObject as XamDataTree;
if (tree != null)
{
XamDataTreeNodeSelectedCommandBehavior behavior = GetOrCreateBehavior(tree);
behavior.CommandParameter = e.NewValue;
}
}
private static XamDataTreeNodeSelectedCommandBehavior GetOrCreateBehavior(XamDataTree tree)
{
XamDataTreeNodeSelectedCommandBehavior behavior = tree.GetValue(DataItemSelectedProperty) as XamDataTreeNodeSelectedCommandBehavior;
if (behavior == null)
{
behavior = new XamDataTreeNodeSelectedCommandBehavior(tree);
tree.SetValue(DataItemSelectedProperty, behavior);
}
return(behavior);
}
