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Using the Trace Logging API

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Applies to: SharePoint Foundation 2010

This topic provides information on the new Trace Logging API in Microsoft SharePoint Foundation 2010.

SPDiagnosticsBase Class

In Windows SharePoint Services 3.0, the only way that developers could write to the event logs was to implement the IDiagnosticsManager interface and use the Trace Log writing methods there. However, in Microsoft SharePoint Foundation 2010 the preferred method of writing to the Trace Logs is to use the SPDiagnosticsBase class, specifically the WriteTrace() and [WriteEvent()] methods.

Unlike Windows SharePoint Services 3.0, custom categories do not need to be defined in order to write to the logs. Instead, passing a parameter to the WriteTrace() and [WriteEvent()] methods will allow a category to be injected into the log.

Writing to the Trace Log

This example shows how to use the object model to write directly to the Trace Log.

using Microsoft.SharePoint.Administration;
WriteTrace(System.UInt32, Microsoft.SharePoint.Administration.SPDiagnosticsCategory, Microsoft.SharePoint.Administration.TraceSeverity, System.String, System.Object[]);

For more information, see SPDiagnosticsServiceBase.

Writing to the Event Log

This example shows how to use the object model to write directly to the event logs.

using Microsoft.SharePoint.Administration;
WriteEvent(System.UInt16,Microsoft.SharePoint.Administration.SPDiagnosticsCategory,Microsoft.SharePoint.Administration.EventSeverity,System.String,System.Object[]);

For more information see SPDiagnosticsServiceBase.