private void ExecuteEditQuestionCommand(Object parameter)
{
var view = new TecherFormAddAndEditQuestions();
var vm = new AddEditQuestionViewModel();
vm.Question = new Question()
{
Answers = new List <Answer>(SelectedQuestion.Answers),
Id = SelectedQuestion.Id,
Content = SelectedQuestion.Content,
Created = SelectedQuestion.Created,
Modifiyed = SelectedQuestion.Modifiyed,
Image = SelectedQuestion.Image
};
vm.AnswerCollection = new ObservableCollection <Answer>(vm.Question.Answers);
vm.Window = view;
view.DataContext = vm;
var result = view.ShowDialog();
if (result.HasValue && result.Value)
{
vm.Question.Answers = new List <Answer>(vm.AnswerCollection);
var editResult = DBDataSource.EditQuestion(vm.Question);
if (editResult)
{
QuestionCollection = new ObservableCollection <Question>(DBDataSource.GetQuestions());
}
}
}
public override void LoadData()
{
NavigationHelper.IsBusy = true;
BackgroundProcessFactory.RunAsync(null, (o, e) =>
{
e.Result = DBDataSource.GetQuestions();
},
(o, e) =>
{
NavigationHelper.IsBusy = false;
if (e.Error != null)
{
return;
}
else
{
var questions = e.Result as List <Question>;
if (questions != null)
{
QuestionCollection = new ObservableCollection <Question>(questions);
}
}
});
}
