System.Web.HttpRuntime.AppOfflineFileChanged C# (CSharp) Method

		static void AppOfflineFileChanged (object sender, FileSystemEventArgs args)
		{
			lock (appOfflineLock) {
				bool offline;
				
				switch (args.ChangeType) {
					case WatcherChangeTypes.Created:
					case WatcherChangeTypes.Changed:
						offline = true;
						break;

					case WatcherChangeTypes.Deleted:
						offline = false;
						break;

					case WatcherChangeTypes.Renamed:
						RenamedEventArgs rargs = args as RenamedEventArgs;

						if (rargs != null &&
						    String.Compare (rargs.Name, "app_offline.htm", StringComparison.OrdinalIgnoreCase) == 0)
							offline = true;
						else
							offline = false;
						break;

					default:
						offline = false;
						break;
				}
				SetOfflineMode (offline, args.FullPath);
			}
		}