protected override void OnEnable()
        {
            base.OnEnable();

            TargetNode.SortShowViewsList();
            TargetNode.SortHideViewsList();

            m_infoMessageUnnamedNodeName   = new InfoMessage(InfoMessage.MessageType.Error, UILabels.UnnamedNodeTitle, UILabels.UnnamedNodeMessage);
            m_infoMessageDuplicateNodeName = new InfoMessage(InfoMessage.MessageType.Error, UILabels.DuplicateNodeTitle, UILabels.DuplicateNodeMessage);
        }