private async void InitializeFlashcardsCollection()
{
if (await CheckInternetConnection())
{
FlashcardsCollection.Clear();
List <Flashcard> _flashcardLists = new List <Flashcard>();
IsDataLoading = true;
try
{
_flashcardLists = await _restService.GetFlashcards(_deckInstance.ID);
if (_flashcardLists != null)
{
_flashcardLists.ForEach(x => FlashcardsCollection.Add(x));
}
}
catch (Exception ex)
{
Messenger.Default.Send <MessageToMessageBoxControl>(new MessageToMessageBoxControl(true, false, StringResources.GetString("OperationFailed")));
}
finally
{
IsDataLoading = false;
}
}
}
private async void HandleDataMessage(Deck deckInstance, Flashcard flashcardInstance)
{
FlashcardsCollection.Clear();
TipsCollection.Clear();
IsDataLoading = false;
if (deckInstance != null)
{
if (flashcardInstance != null)
{
_mode = Mode.EditFlashcard;
Question = flashcardInstance.Question;
Answer = flashcardInstance.Answer;
IsPublic = deckInstance.IsPublic;
IsRemoveButtonVisible = true;
HeaderMessage = StringResources.GetString("EditFlashcard");
SubmitFormMessage = StringResources.GetString("Edit");;
try
{
var tips = await _restService.GetTips(deckInstance.ID, flashcardInstance.Id);
if (tips != null)
{
foreach (var tip in tips)
{
TipsCollection.Add(new TipViewModel(tip.ID, tip.Essence));
}
}
}
catch (Exception ex)
{
Messenger.Default.Send <MessageToMessageBoxControl>(new MessageToMessageBoxControl(true, false, StringResources.GetString("OperationFailed")));
}
_flashcard = flashcardInstance;
}
else
{
_mode = Mode.AddNewFlashcardToDeck;
Question = "";
Answer = "";
IsRemoveButtonVisible = false;
_flashcard = new Flashcard();
HeaderMessage = StringResources.GetString("AddFlashcard");
SubmitFormMessage = StringResources.GetString("AddFlashcard");
TipsCollection = new ObservableCollection <TipViewModel>();
}
try
{
var flashcards = await _restService.GetFlashcards(deckInstance.ID);
if (flashcards != null && flashcards.Count > 0)
{
foreach (var f in flashcards)
{
FlashcardsCollection.Add(f);
}
}
}
catch
{
FlashcardsCollection = new ObservableCollection <Flashcard>();
}
HandleTipsCountChanged();
DeckName = deckInstance.Name;
IsPublic = deckInstance.IsPublic;
_deck = deckInstance;
}
else
{
_mode = Mode.CreateFlashcardAndDeck;
Question = "";
Answer = "";
DeckName = "";
IsRemoveButtonVisible = false;
_deck = new Deck();
_flashcard = new Flashcard();
HeaderMessage = StringResources.GetString("CreateNewDeck");
SubmitFormMessage = StringResources.GetString("CreateNewDeck");
FlashcardsCollection = new ObservableCollection <Flashcard>();
TipsCollection = new ObservableCollection <TipViewModel>();
HandleTipsCountChanged();
}
IsGeneralError = false;
IsPaneVisible = false;
}