How to identify event sender

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C#

MultiHandle

event

The problem is that I have created a "Node" class inherit from Microsoft.VisualBasic.PowerPacks.OvalShape. I added a timer "nodeExpiredTimer" in this class.

class Node: OvalShape
    {
        private int _nodeID;
        private string _nodeName;
        private DateTime _nodeLastMessage;
        private Timer _nodeExpiredTimer;
        
        public Node()
        {       
            _nodeID = -1;
            _nodeName = String.Empty;
            _nodeLastMessage = new DateTime(1, 1, 1, 0, 0, 0);
            _nodeExpiredTimer = new Timer();
	    _nodeExpiredTimer.Interval = 10000;
            _nodeExpiredTimer.Enabled = false;
        }

        public int nodeID
        {
            get { return _nodeID; }
            set { _nodeID = value; }
        }
        
        public string nodeName
        {
            get { return _nodeName; }
            set { _nodeName = value; }
        }

        public DateTime nodeLastMessage
        {
            get { return _nodeLastMessage; }
            set { _nodeLastMessage = value; }
        }

        public Timer nodeExpiredTimer
        {
            get { return _nodeExpiredTimer; }
            set { _nodeExpiredTimer = value; }
        }
     }

In the main thread, I created an array of Node so each node has its timer to determine its Expired time. I want to create a common handler for all timers but I can not identify which node fire the event. I also try using sender but it only help me find which timer fire the event, not the node. Is there any methods to find the node from the identified timer?