/// <summary>Initializes a new instance of the <see cref="CreateChallengesViewModel"/> class.</summary> public CreateChallengesViewModel() { EditCommand = new RelayCommand <ChallengeBase>(async param => { switch (param.GetDiscriminator()) { case "AudienceChallenge": case "CrewChallenge": case "SologameChallenge": ObjectsViewModel.EditCommand.Execute((param as GameChallenge).Game); break; case "MultipleChoiceChallenge": case "QuizChallenge": await AnswersDataAccess.EditAnswersAsync((param as QuestionChallenge).Answers); break; case "MusicChallenge": ObjectsViewModel.EditCommand.Execute((param as MusicChallenge).Song); break; case "ScreenshotChallenge": case "SilhouetteChallenge": ObjectsViewModel.EditCommand.Execute((param as ImageChallenge).Image); break; } await ChallengesDataAccess.EditChallengeAsync(param); }, param => param != null); DeleteCommand = new RelayCommand <ChallengeBase>(async param => { if (await ChallengesDataAccess.DeleteChallengeAsync(param)) { switch (param.GetDiscriminator()) { case "AudienceChallenge": AudienceChallenges.Remove(param as AudienceChallenge); FilteredAudience.Remove(param as AudienceChallenge); break; case "CrewChallenge": CrewChallenges.Remove(param as CrewChallenge); FilteredCrew.Remove(param as CrewChallenge); break; case "MultipleChoiceChallenge": MultipleChoiceChallenges.Remove(param as MultipleChoiceChallenge); FilteredMulti.Remove(param as MultipleChoiceChallenge); break; case "MusicChallenge": MusicChallenges.Remove(param as MusicChallenge); FilteredMusic.Remove(param as MusicChallenge); break; case "QuizChallenge": QuizChallenges.Remove(param as QuizChallenge); FilteredQuiz.Remove(param as QuizChallenge); break; case "ScreenshotChallenge": ScreenshotChallenges.Remove(param as ScreenshotChallenge); FilteredScreen.Remove(param as ScreenshotChallenge); break; case "SilhouetteChallenge": SilhouetteChallenges.Remove(param as SilhouetteChallenge); FilteredSilhu.Remove(param as SilhouetteChallenge); break; case "SologameChallenge": SologameChallenges.Remove(param as SologameChallenge); FilteredSolo.Remove(param as SologameChallenge); break; } } }, param => param != null); }