private void buttonImport_OnClick(object sender, RoutedEventArgs e) { OpenFileDialog openFileDialog = new OpenFileDialog() { CheckFileExists = false, Filter = "XML Files (*.xml)|*.xml" }; if (openFileDialog.ShowDialog() == true) { try { UserData.XMLToHistory(openFileDialog.FileName); Window_Loaded(null, new RoutedEventArgs()); } catch { System.Windows.MessageBox.Show("Error while importing Workday History failed: " + openFileDialog.FileName, "Import failed", MessageBoxButton.OK, MessageBoxImage.Error); } } }