public ChapterContentEdition(ChapterViewModel _selChapterVM)
{
ListView lvAllChapterQuestions = new ListView();
QuestionAnswerViewModel QuestionsVM = new QuestionAnswerViewModel(_selChapterVM);
var lblChapter = new Label
{
Text = "Chapitre " + _selChapterVM.ChapterName
};
List <QuestionAnswerViewModel> AllQuestionsVM = QuestionsVM.GetQuestionsForChapterVM(_selChapterVM);
if (AllQuestionsVM == null || (AllQuestionsVM != null) && AllQuestionsVM.Count() == 0)
{
//QuestionAnswerViewModel test = new QuestionAnswerViewModel(_selChapterVM); ;
//test.DeleteAllQuestions();
//SDI: If there is no questions yet,we add a "fake" question which is a link to open the CreateQuestion page
QuestionAnswerViewModel fakeToAdd = new QuestionAnswerViewModel(_selChapterVM);
fakeToAdd.QuestionText = "Nouvelle question";
AllQuestionsVM = new List <QuestionAnswerViewModel>();
AllQuestionsVM.Add(fakeToAdd);
}
else
{
//SDI: we just add the fake chapter at the end of the list
QuestionAnswerViewModel fakeToAdd = new QuestionAnswerViewModel(_selChapterVM);
fakeToAdd.QuestionText = "Nouvelle question";
AllQuestionsVM.Add(fakeToAdd);
}
lvAllChapterQuestions.ItemsSource = AllQuestionsVM;
lvAllChapterQuestions.ItemTemplate = new DataTemplate(typeof(CustomQuestionCell));
lvAllChapterQuestions.ItemTemplate.SetBinding(ImageCell.TextProperty, "QuestionText");
lvAllChapterQuestions.ItemTemplate.SetValue(ImageCell.TextColorProperty, Color.FromHex("#795548"));
lvAllChapterQuestions.ItemTapped += async(sender, e) =>
{
QuestionAnswerViewModel qvm = (QuestionAnswerViewModel)e.Item;
//SDI: Creation and Update are using the same create question page since the fields are bound to the object
await Navigation.PushAsync(new CreateQuestionAnswer(qvm));
#region Old
//if (qvm.QuestionText.Trim().ToLower().Equals("nouvelle question"))
//{
// //SDI: if element tapped is to create a new question, we go to the CreateQuestion page
// await Navigation.PushAsync(new CreateQuestionAnswer(qvm)); //await DisplayAlert("Info", "nouvelle question", "Ok");
//}
//else //SDI:An existing question has been selected, we edit the question
//{
// await Navigation.PushAsync(new QuestionAnswerContentEdition(qvm));
//}
#endregion
((ListView)sender).SelectedItem = null;
};
lvAllChapterQuestions.IsPullToRefreshEnabled = true;//To enable the refreshment of the listview when pulled
var stackLayout = new StackLayout
{
Children =
{
lblChapter, lvAllChapterQuestions
},
BackgroundColor = Color.White
};
this.BindingContext = AllQuestionsVM;
this.Content = stackLayout;
this.Padding = new Thickness(10, Device.OnPlatform(20, 0, 0), 10, 5);
this.BackgroundColor = Color.Gray;
}