private async Task SubmitHandlerAsync()
{
this.IsBusy = true;
var hasError = false;
try
{
this.User = await this.User.SaveAsync() as IUser;
var identity = await this.userIdentityObjectFactory.FetchAsync(this.User.ProfileID);
var principal = new CslaPrincipalCore(identity);
Csla.ApplicationContext.User = principal;
}
catch (DataPortalException ex)
{
this.logger.Log(ex);
hasError = true;
}
this.IsBusy = false;
if (!hasError)
{
// Always navigate to the Polls page first.
this.ShowViewModel <PollsPageViewModel>();
// If there is a PollId, the user is coming in from a URI link.
// Navigate to the View Poll page, leaving the Polls page in the back
// stack so the user can back up to it.
if (this.NavigationCriteria.PollId.HasValue)
{
this.Close(this);
}
#if MOBILE
ChangePresentation(new ClearBackstackHint());
#endif
}
else
{
await this.messageBox.ShowAsync("There was an error saving your profile. Please try again.", "Error");
}
}
private async Task LoadIdentityAndGo(string profileId)
{
IUserIdentity identity = null;
IsBusy = true;
try
{
identity = await this.objectFactory.FetchAsync(profileId);
var principal = new CslaPrincipalCore(identity);
Csla.ApplicationContext.User = principal;
}
catch (DataPortalException ex)
{
this.logger.Log(ex);
identity = null;
}
IsBusy = false;
if (identity == null)
{
await this.messageBox.ShowAsync("There was an error retrieving your profile.", "Error");
}
else if (identity.IsAuthenticated)
{
#if MOBILE
Xamarin.Insights.Identify(profileId, Xamarin.Insights.Traits.Name, identity.UserName);
Xamarin.Forms.MessagingCenter.Subscribe <VmPageMappings>(this, string.Format(Constants.Navigation.PageNavigated, typeof(PollsPageViewModel)), (sender) =>
{
Xamarin.Forms.MessagingCenter.Unsubscribe <VmPageMappings>(this, string.Format(Constants.Navigation.PageNavigated, typeof(PollsPageViewModel)));
//this.Close(this);
ChangePresentation(new ClearBackstackHint());
});
#endif // MOBILE
// If there is a PollId, the user is coming in from a URI.
// Navigate to the Polls page, which adds it to the back stack.
// Then, navigate to the View Poll page. This allows the user to be able
// to back out of the View Poll page and land on the Polls page, rather than
// leaving the app.
if (this.NavigationCriteria != null && this.NavigationCriteria.PollId.HasValue)
{
var criteria = new ViewPollPageNavigationCriteria
{
PollId = this.NavigationCriteria.PollId.Value
};
this.ShowViewModel <PollsPageViewModel>();
#if MOBILE
ChangePresentation(new ClearBackstackHint());
#endif
this.ShowViewModel <ViewPollPageViewModel>(criteria);
#if !MOBILE
this.Close(this);
#endif
}
else if (this.NavigationCriteria != null && !string.IsNullOrEmpty(this.NavigationCriteria.SearchQuery))
{
var criteria = new PollsPageSearchNavigationCriteria
{
SearchQuery = this.NavigationCriteria.SearchQuery
};
this.ShowViewModel <PollsPageViewModel>();
#if MOBILE
ChangePresentation(new ClearBackstackHint());
#endif
this.ShowViewModel <ViewPollPageViewModel>(criteria);
#if !MOBILE
this.Close(this);
#endif
}
else
{
this.ShowViewModel <PollsPageViewModel>();
#if MOBILE
ChangePresentation(new ClearBackstackHint());
#endif
#if !MOBILE
this.Close(this);
#endif
}
}
else
{
var criteria = new RegistrationPageNavigationCriteria
{
ProfileId = profileId
};
if (this.NavigationCriteria != null)
{
criteria.PollId = this.NavigationCriteria.PollId;
}
this.ShowViewModel <RegistrationPageViewModel>(criteria);
}
}