private void ExecuteOkCommandCommand(Object parameter)
{
var studentId = ServiceDataSource.RigisterStudent(new Student {
LastName = LastName, Name = FirstName, GroupNumber = GroupNumber
});
if (studentId > 0)
{
var startInfoPageView = new StartInfoPageView();
var startInfoPageViewModel = new StartInfoPageViewModel()
{
CurrentStudent = new StudentModel
{
LastName = LastName,
FirstName = FirstName,
GroupNumber = GroupNumber,
Id = studentId
}
};
startInfoPageViewModel.LoadData();
startInfoPageView.DataContext = startInfoPageViewModel;
NavigationHelper.NavigateTo(startInfoPageView);
}
else
{
MessageBox.Show("Ошибка регистрации студента", "Ошибка", MessageBoxButton.OK, MessageBoxImage.Error);
}
}
public override void LoadData()
{
var test = ServiceDataSource.GetCurrentTest();
if (test != null)
{
NavigationHelper.CurrrentTest = test;
TestDescription = test.Description;
}
}
private void CheckAnswersQuestion()
{
var correctAnswer = ServiceDataSource.SubmitQuestionAnswers(CurrentQuestion.Id, CurrentQuestion.Answers.Where(a => a.IsSelected).Select(a => a.Id).ToArray());
if (correctAnswer)
{
RightAnswerCount++;
}
else
{
WrongAnswerCount++;
}
}
private void ShowTestResult(bool timeIsUp = false)
{
var attemptId = ServiceDataSource.FinishTest(timeIsUp);
var resultFormView = new ResultFormView();
var resultFormViewModel = new ResultFormViewModel()
{
AttemptId = attemptId
};
resultFormViewModel.LoadData();
resultFormView.DataContext = resultFormViewModel;
NavigationHelper.NavigateTo(resultFormView);
}
private void ExecuteTestStartCommand(Object parameter)
{
NavigationHelper.TestSessionId = ServiceDataSource.StartTest(CurrentStudent.Id);
if (NavigationHelper.TestSessionId != Guid.Empty)
{
var questionsFormView = new QuestionsFormView();
var questionsViewModel = new QuestionsViewModel()
{
CurrentStudent = CurrentStudent
};
questionsViewModel.LoadData();
questionsFormView.DataContext = questionsViewModel;
NavigationHelper.NavigateTo(questionsFormView);
}
else
{
MessageBox.Show("Ошибка запуска теста", "Ошибка", MessageBoxButton.OK, MessageBoxImage.Error);
}
}
public override void LoadData()
{
if (AttemptId > 0)
{
var result = ServiceDataSource.GetStudentTestResult(AttemptId);
if (result != null)
{
if (result.Student != null)
{
CurrentStudent = new StudentModel()
{
FirstName = result.Student.Name, LastName = result.Student.LastName, GroupNumber = result.Student.GroupNumber
};
}
AllQuestionCount = result.AllQuestionCount;
RightAnswerCount = result.RightQuestionCount;
Grade = result.Grade;
TimeIsUp = result.TimeIsUp;
}
}
}
/// <summary>
/// Метод для загрузки тестовых данных
/// </summary>
public override void LoadData()
{
var rnd = new Random(DateTime.Now.Second);
var questionCollection = new List <QuestionModel>();
var fillQuestions = ServiceDataSource.GetQuestion4Atempt();
foreach (var dbQuestion in fillQuestions)
{
var questModel = new QuestionModel {
Id = dbQuestion.Id, Name = dbQuestion.Content, Answers = new ObservableCollection <AnswerModel>()
};
//Перемешивааем варианты ответов в произвольном порядке
var result = dbQuestion.Answers.OrderBy(i => Guid.NewGuid());
foreach (var dbAnswer in result)
{
questModel.Answers.Add(new AnswerModel {
Name = dbAnswer.Content, Id = dbAnswer.Id
});
}
questionCollection.Add(questModel);
}
QuestionArray = questionCollection.ToArray();
LoadNextQuestion();
}
