private async void BtnChangeArtist_Click(object sender, RoutedEventArgs e) { ArtistAddDialog artistAddDialog = new ArtistAddDialog(); await artistAddDialog.ShowAsync(); if (artistAddDialog.result != null) { artistAddDialog.result.User = current.User; userViewModel.AddArtist(artistAddDialog.result); await new MessageDialog("아티스트로 변환이 완료되었습니다.").ShowAsync(); InitData(current.FK_User); } }