public string CalculateMarkSection(LOT_Exam exam, LOT_ExamQuestion_Section section, sp_GetCandidateListByExamResult candidate,
ref double totalMark, ref double totalMaxMark, ref bool isNan)
{
List<sp_GetCandidateAnswerListResult> listAnswer = candidateAnswerDAO.GetCandidateAnswer(candidate.ID, section.ID);
List<sp_GetCandidateAnswerListResult> correctAnswers = listAnswer.Where(c => c.IsCorrect == true).ToList<sp_GetCandidateAnswerListResult>();
double mark = (((double)section.MaxMark) / listAnswer.Count) * correctAnswers.Count;
string result=string.Empty;
if (!double.IsNaN(mark))
{
result = Math.Round(mark) + "/" + section.MaxMark;
totalMaxMark += (double)section.MaxMark;
totalMark += mark;
}
else
{
totalMaxMark += 0;
totalMark += 0;
isNan = false;
}
return result;
}
/// <summary>
/// Check update date whether is valid
/// </summary>
/// <param name="objUI"></param>
/// <param name="objDb"></param>
/// <param name="msg"></param>
/// <returns></returns>
private bool IsValidExamUpdateDate(LOT_Exam objUI, LOT_Exam objDb, out Message msg)
{
bool isValid = false;
msg = null;
try
{
if ((objUI != null) && (objUI.UpdateDate != null))
{
if (objDb != null)
{
if (objDb.UpdateDate.ToString().Equals(objUI.UpdateDate.ToString()))
{
isValid = true;
}
else
{
msg = new Message(MessageConstants.E0025, MessageType.Error, "Exam '" + objDb.Title + "'");
}
}
}
}
catch
{
throw;
}
return isValid;
}
/// <summary>
/// Update
/// </summary>
/// <param name="objUI"></param>
/// <returns></returns>
public Message Update(LOT_Exam objUI)
{
Message msg = null;
try
{
if (objUI != null)
{
LOT_Exam objDB = GetByID(objUI.ID);
if (IsValidExamUpdateDate(objUI, objDB,out msg))
{
objDB.Title = objUI.Title;
objDB.ExamQuestionID = objUI.ExamQuestionID;
objDB.ExamDate = objUI.ExamDate;
objDB.ExamType = objUI.ExamType;
// Set more info
objDB.UpdateDate = DateTime.Now;
objDB.UpdatedBy = objUI.UpdatedBy;
dbContext.SubmitChanges();
msg = new Message(MessageConstants.I0001, MessageType.Info, "Exam '" + objUI.Title + "'", "updated");
}
}
}
catch (Exception)
{
// Show system error
msg = new Message(MessageConstants.E0007, MessageType.Error);
}
return msg;
}
/// <summary>
/// Delete by set DeleteFlag = true
/// </summary>
/// <param name="objUI"></param>
private Message Delete(LOT_Exam objUI)
{
Message msg = null;
try
{
if (objUI != null)
{
LOT_Exam objDb = GetByID(objUI.ID);
if (objDb != null)
{
// Set delete info
objDb.DeleteFlag = true;
objDb.UpdateDate = DateTime.Now;
objDb.UpdatedBy = objUI.UpdatedBy;
}
// Submit changes to dbContext
msg = new Message(MessageConstants.I0001, MessageType.Info, "Exam", "deleted");
dbContext.SubmitChanges();
}
}
catch
{
msg = new Message(MessageConstants.E0006, MessageType.Error, "delete", "it");
}
return msg;
}
/// <summary>
/// Insert to database
/// </summary>
/// <param name="objUI"></param>
/// <returns></returns>
public Message Insert(LOT_Exam objUI)
{
Message msg = null;
try
{
if (objUI != null)
{
// Set more info
objUI.DeleteFlag = false;
objUI.CreateDate = DateTime.Now;
objUI.UpdateDate = DateTime.Now;
dbContext.LOT_Exams.InsertOnSubmit(objUI);
dbContext.SubmitChanges();
msg = new Message(MessageConstants.I0001, MessageType.Info, "Exam '" + objUI.Title + "'", "added");
}
}
catch (Exception)
{
// Show system error
msg = new Message(MessageConstants.E0007, MessageType.Error);
}
return msg;
}
