TaskEventWatcher create wrong filter

I try the example for the watcher. I run the scheduler task during sleep but it does n`t trigger the handler.

var task = ts.FindTask("Firefox Default Browser Agent 308046B0AF4A39CB"); var watcher = new TaskEventWatcher(task); watcher.BeginInit(); watcher.Filter.EventIds = new int[] { 102, 201, 110, 200, 100 }; watcher.Folder = task.Folder.Path; ; watcher.EventRecorded += Watcher_EventRecorded; watcher.IncludeSubfolders = true; watcher.SynchronizingObject = null; watcher.Enabled = true; watcher.EndInit(); Thread.Sleep(100000);

I would like to use the library so I spend some time debugging the situation. The problem is converting DateTime to XML. Exactly in this line

"System.Xml.XmlConvert.ToString(startTime.Value, System.Xml.XmlDateTimeSerializationMode.RoundtripKind)".

StartTime.Value has the time:

DateTime has specific field Kind on value Local. Microsoft documentation for enum "System.Xml.XmlDateTimeSerializationMode.RoundtripKind" says that "Time zone information should be preserved when converting.".

Result of converting is:

TimeCreated[@SystemTime>='2020-06-20T16:51:51.5770282+02:00']}

The time is not some. It is shifted for 2 hours. I used the .Net Framework 4.5.2

For the example of using TaskEventLog is DateTime in the constructor. But the TaskEventWatcher doesn`t have a parameter for setting StartDate. It is used DateTime.Now for the initializing an object of TaskEventLog. The better way is to use the UTC timezone.

I try to change the code to DateTime.UtcNow :

The DateTime has value:

The date is converted to correct format:

TimeCreated[@SystemTime>='2020-06-20T14:49:06.7642685Z']}

I recommend changing the parameter in the constructor of TaskEventLog inside the TaskEventWatcher and use DateTime.UtcNow .

dahall / TaskScheduler

TaskEventWatcher create wrong filter #850