Notifies the file monitor of the Web.sitemap file that the System.Web.XmlSiteMapProvider object no longer requires the file to be monitored.
The System.Web.XmlSiteMapProvider class implements the IDisposable.Dispose method of the IDisposable interface to release its associated file monitor when the site map file is unloaded from memory. This overload of the erload:System.Web.XmlSiteMapProvider.Dispose method calls the overload that takes a bool parameter and sets the value to true.