void update_AvailableComplete(bool isAvailable, Update.UpdateInfo updateInfo, object state, Exception e) { if (Dispatcher.Thread != Thread.CurrentThread) { Dispatcher.BeginInvoke(new Update.AvailableComplete(update_AvailableComplete), new object[] { isAvailable, updateInfo, state, e }); return; } ButtonUpdate.IsEnabled = true; if (isAvailable) { ButtonUpdate.Content = "Install new version"; isAboutToDownloadNewVersion = true; newVersionInfo = updateInfo; } else { ButtonUpdate.Content = "Check for updates"; } }