Hi Fabian,

You can get the node that context menu belongs to, by previously save reference to it in the event handler of NTreeLiset.ItemNotify event:  

NTreeListNode m_CurrentNode;

...

nTreeList1.ItemNotify += new NLightUIItemNotifyEventHandler(nTreeList1_ItemNotify);

...

void nTreeList1_ItemNotify(object sender, NLightUIItemNotifyData data)

{

    if (data.NotifyCode == NTreeList.ItemContextMenuDisplayingNotifyCode)

    {

        m_CurrentNode = (NTreeListNode)data.Sender;

    }

}

Then, when CommandClick event fires in the event handler you can use this cashed node.

Regards,

Angel.