The event information.
The WebBaseEvent.ToString method is generally invoked by the provider that processes the event. The method ensures that the standard System.Web.Management.WebApplicationInformation object is provided with the event-specific data. It formats event information by calling the event-specific WebBaseEvent.FormatCustomEventDetails(WebEventFormatter) method.
When you format your custom event information for display, override the WebBaseEvent.FormatCustomEventDetails(WebEventFormatter) method rather than the erload:System.Web.Management.WebBaseEvent.ToString method. This will avoid overwriting or tampering with sensitive system information.