private async Task GetQuestions()
{
var(res, questions) = await ExamServices.GetPaper(_examId);
if (res == ErrorCodes.ExamNotBegin)
{
// If the exam not begin, display the count down
_examNotBegin = true;
}
else if (res == ErrorCodes.Success)
{
_examNotBegin = false;
_questions = questions;
}
StateHasChanged();
}
protected override async Task OnInitializedAsync()
{
if (!int.TryParse(ExamId, out _examId))
{
await Modal.ErrorAsync(new ConfirmOptions()
{
Title = "Cannot get exam result",
Content = "Invalid examId"
});
return;
}
var(r, details) = await ExamServices.GetExamDetails(_examId);
if (r != ErrorCodes.Success)
{
await Modal.ErrorAsync(new ConfirmOptions()
{
Title = "Cannot get exam result",
Content = ErrorCodes.MessageMap[r]
});
return;
}
_examDetails = details;
var(res, questions) = await ExamServices.GetPaper(_examId);
if (res != ErrorCodes.Success)
{
await Modal.ErrorAsync(new ConfirmOptions()
{
Title = "Cannot get exam result",
Content = ErrorCodes.MessageMap[res]
});
return;
}
_questions = questions;
StateHasChanged();
}
protected override async Task OnInitializedAsync()
{
if (!int.TryParse(ExamId, out _examId))
{
await Modal.ErrorAsync(new ConfirmOptions()
{
Title = "Invalid exam ID"
});
return;
}
var(res, details) = await ExamServices.GetExamDetails(_examId);
if (res != ErrorCodes.Success)
{
await Modal.ErrorAsync(new ConfirmOptions()
{
Title = "Failed to obtain exam information",
Content = ErrorCodes.MessageMap[res]
});
return;
}
_model = details;
var(res2, takers) = await ExamServices.GetTestTakers(_examId);
if (res2 != ErrorCodes.Success)
{
await Modal.ErrorAsync(new ConfirmOptions()
{
Title = "Failed to obtain list of exam takers",
Content = ErrorCodes.MessageMap[res2]
});
return;
}
_takers = takers;
var(res3, proctors) = await ExamServices.GetProctors(_examId);
if (res3 != ErrorCodes.Success)
{
await Modal.ErrorAsync(new ConfirmOptions()
{
Title = "Failed to obtain list of exam proctors",
Content = ErrorCodes.MessageMap[res3]
});
return;
}
_proctors = proctors;
var(res4, questions) = await ExamServices.GetPaper(_examId);
if (res4 != ErrorCodes.Success)
{
await Modal.ErrorAsync(new ConfirmOptions()
{
Title = "Failed to obtain questions",
Content = ErrorCodes.MessageMap[res4]
});
return;
}
_questions = questions;
}
protected override async Task OnInitializedAsync()
{
if (!int.TryParse(ExamId, out _examId))
{
await Modal.ErrorAsync(new ConfirmOptions()
{
Title = "Cannot obtain exam information",
Content = "Invalid exam ID"
});
return;
}
var(res, details) = await ExamServices.GetExamDetails(_examId);
if (res != ErrorCodes.Success)
{
await Modal.ErrorAsync(new ConfirmOptions()
{
Title = "Cannot obtain exam information",
Content = ErrorCodes.MessageMap[res]
});
if (res == ErrorCodes.NotLoggedIn)
{
NavManager.NavigateTo("/User/Login");
}
return;
}
var secs = details.Duration;
var hours = secs / 3600;
var minutes = (secs - hours * 3600) / 60;
var seconds = secs - minutes * 60 - hours * 3600;
_updateExamDetailsModel.Id = _examId;
_updateExamDetailsModel.Name = details.Name;
_updateExamDetailsModel.Description = details.Description;
_updateExamDetailsModel.StartTime = details.StartTime;
_updateExamDetailsModel.Duration = new DateTime(1999, 04, 27, hours, minutes, seconds);
_updateExamDetailsModel.OpenBook = details.OpenBook;
_updateExamDetailsModel.MaximumTakersNum = details.MaxTakers;
var(res2, questions) = await ExamServices.GetPaper(_examId);
if (res2 != ErrorCodes.Success)
{
await Modal.ErrorAsync(new ConfirmOptions()
{
Title = "Cannot obtain exam paper",
Content = ErrorCodes.MessageMap[res2]
});
return;
}
_questions = questions;
_questionEditors = new QuestionEditor[_questions.Count];
StateHasChanged();
}