Writing To ULS From Within C#

Jaydeep Patel

May 18, 2012

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Writing to ULS From Within C#

Event Receivers and Feature Receivers are notoriously hard to debug.  Here’s a little gem to ease your debugging migraines:

Here’s the function I use, just to simplify subsequent calls:

 private void LogOut(TraceSeverity Level, string OutStr)
        {
            SPDiagnosticsService.Local.WriteTrace(0, new SPDiagnosticsCategory("SuperRouter Updated", Level, EventSeverity.Error), TraceSeverity.Unexpected, OutStr, null);
        }

Here’s  what the call looks like. Note you can set the severity level.  I sprinkle these throughout the code and dump data etc throughout

LogOut(TraceSeverity.High, "Item Updated Event Trapped!");

Here’s the reference to use in the code:

using Microsoft.SharePoint.Utilities;
using Microsoft.SharePoint.Administration;

If you’d like a class to reuse, here it is:

public class MyLogger
   {
       public static void LogOut(TraceSeverity Level, string OutStr)
       {
           SPDiagnosticsService.Local.WriteTrace(0, new SPDiagnosticsCategory("JoelER", Level, EventSeverity.Error), TraceSeverity.Unexpected, OutStr, null);
       }
   }