protected override void OnCollectionChanged(NotifyCollectionChangedEventArgs args)
{
base.OnCollectionChanged(args);
if (this.owner != null)
{
RadTreeViewElement treeViewElement = this.owner.TreeViewElement;
if (treeViewElement != null)
{
if (args.Action == NotifyCollectionChangedAction.Add)
{
RadTreeNode node = (RadTreeNode)args.NewItems[0];
treeViewElement.Update(RadTreeViewElement.UpdateActions.ItemAdded, node);
treeViewElement.OnNodeAdded(new RadTreeViewEventArgs(node));
}
else if (args.Action == NotifyCollectionChangedAction.Remove)
{
RadTreeNode node = (RadTreeNode)args.NewItems[0];
treeViewElement.Update(RadTreeViewElement.UpdateActions.ItemRemoved, node);
treeViewElement.OnNodeRemoved(new RadTreeViewEventArgs(node));
}
else if (args.Action == NotifyCollectionChangedAction.Move)
{
RadTreeNode node = (RadTreeNode)args.NewItems[0];
treeViewElement.Update(RadTreeViewElement.UpdateActions.ItemMoved, node);
}
else if (args.Action == NotifyCollectionChangedAction.Reset)
{
treeViewElement.Update(RadTreeViewElement.UpdateActions.Reset);
}
}
}
}
protected override void OnCollectionChanged(NotifyCollectionChangedEventArgs args)
{
base.OnCollectionChanged(args);
if (this.Suspended || this.owner == null)
return;
RadTreeViewElement treeViewElement = this.owner.TreeViewElement;
if (treeViewElement == null)
return;
if (!treeViewElement.IsSuspended)
{
this.owner.InvalidateOnState();
this.owner.UpdateParentCheckState();
}
if (args.Action == NotifyCollectionChangedAction.Add)
{
RadTreeNode newItem = (RadTreeNode) args.NewItems[0];
treeViewElement.Update(RadTreeViewElement.UpdateActions.ItemAdded, newItem);
treeViewElement.OnNodeAdded(new RadTreeViewEventArgs(newItem));
}
else if (args.Action == NotifyCollectionChangedAction.Remove)
{
RadTreeNode newItem = (RadTreeNode) args.NewItems[0];
treeViewElement.Update(RadTreeViewElement.UpdateActions.ItemRemoved, newItem);
treeViewElement.OnNodeRemoved(new RadTreeViewEventArgs(newItem));
}
else if (args.Action == NotifyCollectionChangedAction.Move)
{
RadTreeNode newItem = (RadTreeNode) args.NewItems[0];
treeViewElement.Update(RadTreeViewElement.UpdateActions.ItemMoved, newItem);
}
else
{
if (args.Action != NotifyCollectionChangedAction.Reset)
return;
RadTreeViewElement.UpdateActions updateAction = this.owner is RadTreeViewElement.RootTreeNode ? RadTreeViewElement.UpdateActions.Reset : RadTreeViewElement.UpdateActions.Resume;
treeViewElement.Update(updateAction);
}
}
