protected override void OnAttached()
{
base.OnAttached();
AssociatedObject.AllowRecreateNodesOnEndDataUpdate = false;
AssociatedObject.NodeExpanded += AssociatedObject_NodeExpanded;
AssociatedObject.DataControl.CurrentItemChanged += DataControl_CurrentItemChanged;
AssociatedObject.NodeExpanding += (s, e) => { e.Allow = !IsUpdating; };
AssociatedObject.NodeCollapsing += (s, e) => { e.Allow = !IsUpdating; };
DataControlReferences.Add(new WeakReference <DataControlBase>(AssociatedObject.DataControl));
}
private static void EndDataUpdate()
{
List <WeakReference <DataControlBase> > deadReferences = new List <WeakReference <DataControlBase> >();
foreach (WeakReference <DataControlBase> reference in DataControlReferences)
{
if (reference.TryGetTarget(out DataControlBase dataControl))
{
dataControl.EndDataUpdate();
}
else
{
deadReferences.Add(reference);
}
}
if (deadReferences.Count > 0)
{
deadReferences.ForEach(x => DataControlReferences.Remove(x));
}
IsUpdating = false;
}
