Error Event Log C#
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Write To Event Log C# Windows Service
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more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags read event log c# Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, c# write to application event log helping each other. Join them; it only takes a minute: Sign up Write to Windows Application Event Log without registering an Event Source up vote 30 down vote favorite 5 Is there a way to write to this https://support.microsoft.com/en-us/kb/307024 event log: Or at least, some other Windows default log, where I don't have to register an event source? c# .net windows logging event-log share|improve this question edited Jun 16 at 14:22 asked Sep 8 '14 at 13:15 Jerther 1,18311023 4 msdn.microsoft.com/en-us/library/42ste2f3%28v=vs.90%29.aspx –Giannis Paraskevopoulos Sep 8 '14 at 13:16 support.microsoft.com/kb/307024/en-us –Albi Sep 8 '14 at 13:19 1 "You must create and configure the event source before writing the first entry with the http://stackoverflow.com/questions/25725151/write-to-windows-application-event-log-without-registering-an-event-source source." –Jerther Sep 8 '14 at 13:20 Seems I can't. So, is there a good fallback method to warn that the application cannot write to the windows logs? A flat file seems good but, where? The application folder would still need some permissions. My application is a windows service. –Jerther Sep 8 '14 at 13:38 2 If your application is a Windows Service, then an event source is created for you automatically. You can access it through ServiceBase.EventLog. The default name of the Source is the ServiceName. –mike z Sep 8 '14 at 16:48 | show 1 more comment 4 Answers 4 active oldest votes up vote 49 down vote accepted Yes, there is a way to write to the event log you are looking for. You don't need to create a new source, just simply use the existent one, which often has the same name as the EventLog's name and also, in some cases like the event log Application, can be accessible without administrative privileges*. *Other cases, where you cannot access it directly, are the Security EventLog, for example, which is only accessed by the operating system. I used this code to write directly to the event log Application: using (EventLog eventLog = new EventLog("Application")) { eventLog.Source = "Application"; eventLog.WriteEntry("Log message example", EventLogEntryType.Information, 101, 1); } As you can see, the E
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of http://stackoverflow.com/questions/1133355/c-sharp-writing-to-the-event-viewer this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question http://www.codeproject.com/Articles/29052/Writing-to-System-Event-Log x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up c# event log writing to the event viewer up vote 50 down vote favorite 12 I'm trying to write to the event viewer in my c# code, but I'm getting the wonderful "Object reference not set to an instance of an object" message. I'd appreciate some help with this code, either what's wrong with it or even a better way to do it. Here's what I event log c# have for writing to the event log: private void WriteToEventLog(string message) { string cs = "QualityDocHandler"; EventLog elog = new EventLog(); if (!EventLog.SourceExists(cs)) { EventLog.CreateEventSource(cs, cs); } elog.Source = cs; elog.EnableRaisingEvents = true; elog.WriteEntry(message); } And here's where I'm trying to call it: private readonly Random _rng = new Random(); private const string _chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"; private string RandomString(int size) { try { char[] buffer = new char[size]; for (int i = 0; i < size; i++) { buffer[i] = _chars[_rng.Next(_chars.Length)]; } return new string(buffer); } catch (Exception e) { WriteToEventLog(e.ToString()); return null; } } c# event-log share|improve this question asked Jul 15 '09 at 19:12 PushCode 1,42941726 what line is the error on? –NikolaiDante Jul 15 '09 at 19:13 please provide a stack trace –Brad Barker Jul 15 '09 at 19:16 "Object reference not set to an instance of an object" - means that you are referencing a NULL, it is much more helpful to know the line of code where this happens, because then you can see what it is that is NULL that you're referencing. –Stan R. Jul 15 '
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