Notes about `System.Threading.Timer`

passing_object_right.cs

StateObject object = new StateObject();
object.Number = 5;
System.Threading.Timer timer = new System.Threading.Timer(new TimerCallback(callback), object, ...);

passing_object_wrong.cs

StateObject object = new StateObject();
System.Threading.Timer timer = new System.Threading.Timer(new TimerCallback(callback), object, ...);
object.Number = 5;