Question

I am trying to access the Event Code value (which is a unit) like this:

private static void EventLogMonitor(object sender, EventArrivedEventArgs e)
{
  ManagementBaseObject targetInstance = (ManagementBaseObject)e.NewEvent.GetPropertyValue("TargetInstance");
  EventId = (int)(targetInstance.GetPropertyValue("EventCode"));
  ...

But I get an invalid cast exception at (int)(targetInstance.GetPropertyValue("EventCode")). It seems this piece of code returns an object, I wonder how it is possible to access the uint Event Code value?

Answer 1

Assuming that you are dealing with Win32_NTLogEvent classes, you need to cast to UInt16 (or ushort), as that is the type for “EventCode” according to msdn.

(UInt16)(targetInstance.GetPropertyValue("EventCode"))