private static void ExtractKey(ref string Clave, ref int claveCount, string[] answers, ref ExamsRow r)
{
int AIDcorrecto = Convert.ToInt32(answers[1]); //toma la respuesta correcta
answers = answers[0].Split(SEP); //the array of answers ID
QuestionsRow q = r.QuestionsRow;
int option2 = 0;
IEnumerable <AnswersRow> answ2 = q.GetAnswersRows();
foreach (string s in answers)
{
char letra = Tools.Alpha[option2];
int aid = Convert.ToInt32(s);
AnswersRow a = answ2.FirstOrDefault(o => o.AID == aid); //selectivamente en el mismo orden en que fue generada
a.Char = letra.ToString().ToUpper().Trim();
if (a.AID == AIDcorrecto)
{
Clave += letra;
}
option2++;
}
if (claveCount == answers.Count())
{
Clave += SEP.ToString();
claveCount = 0;
}
claveCount++;
}
private string Encode(string[] items)
{
StringBuilder builder = new StringBuilder();
string sep = "";
foreach (string item in items)
{
builder.Append(sep + item);
sep = SEP.ToString();
}
return(builder.ToString());
}
private static string ExtractQuestionAndWeight(ref string questionWeight, ref string qidString, ref int pregunta, bool showPoints, double pointFactor, ref ExamsRow r)
{
string examen;
QuestionsRow q = r.QuestionsRow;
qidString += r.QID.ToString() + SEP.ToString();
Decimal askValue = Convert.ToDecimal(q.Weight * pointFactor);
string weight = Decimal.Round(askValue, 3).ToString();
examen = pregunta.ToString() + "- " + q.Question; //pregunta
if (showPoints)
{
examen += "\t( " + PUNTOS + ": " + weight + " )";
}
examen += "\n";
pregunta++; //contador
questionWeight += q.Weight.ToString() + SEP.ToString(); // save a string of questionsWeights
return(examen);
}
/// <summary>
/// the code string for 1 exam question (already randonmized)
/// </summary>
/// <param name="qID"> </param>
/// <param name="answ"></param>
/// <returns></returns>
public string CreateExamQuestionCode(ref IEnumerable <AnswersRow> answ)
{
string aid = string.Empty;
///MAKE ORDERS, which contain the string of answersID in the order of the exam, for each questionID selected
string code = string.Empty;
//the second separator sep2 gives the AnswrID (AID) of the right answer
foreach (AnswersRow a in answ)
{
// OrderRow or = inter.IdB.Order.NewOrderRow(); inter.IdB.Order.AddOrderRow(or);
// or.QID = qID; //questionID or.AID = a.AID; //answerID
if (!a.IsCorrectNull() && a.Correct == true)
{
aid = a.AID.ToString();
}
code += a.AID.ToString() + SEP.ToString();
}
code = code.Substring(0, code.Length - 1); //without comma at the end
code += SEP2.ToString() + aid;
return(code);
}
public override XmlElement Export(XmlDocument doc, XmlElement parent)
{
XmlElement current = base.Export(doc, parent);
if (ActiveFrom != null)
{
current.SetAttribute("ACTIVE_FROM", ActiveFrom.ToString());
}
if (ActiveTill != null)
{
current.SetAttribute("ACTIVE_TILL", ActiveTill.ToString());
}
if (Confcal != null)
{
current.SetAttribute("CONFCAL", Confcal.ToString());
}
if (Date != null)
{
current.SetAttribute("DATE", Date.ToString());
}
if (Days != null)
{
current.SetAttribute("DAYS", Days.ToString());
}
if (DaysAndOr != null)
{
current.SetAttribute("DAYS_AND_OR", DaysAndOr.ToString());
}
if (DaysCal != null)
{
current.SetAttribute("DAYSCAL", DaysCal.ToString());
}
if (Level != null)
{
current.SetAttribute("LEVEL", Level.ToString());
}
if (MaxWait != null)
{
current.SetAttribute("MAXWAIT", MaxWait.ToString());
}
if (Retro != null)
{
current.SetAttribute("RETRO", Retro.ToString());
}
if (Shift != null)
{
current.SetAttribute("SHIFT", Shift.ToString());
}
if (ShiftNum != null)
{
current.SetAttribute("SHIFTNUM", ShiftNum.ToString());
}
if (TagsActiveFrom != null)
{
current.SetAttribute("TAGS_ACTIVE_FROM", TagsActiveFrom.ToString());
}
if (TagsActiveTill != null)
{
current.SetAttribute("TAGS_ACTIVE_TILL", TagsActiveTill.ToString());
}
if (WeekDays != null)
{
current.SetAttribute("WEEKDAYS", WeekDays.ToString());
}
if (Weekscal != null)
{
current.SetAttribute("WEEKSCAL", Weekscal.ToString());
}
if (JAN != null)
{
current.SetAttribute("JAN", JAN.ToString());
}
if (FEB != null)
{
current.SetAttribute("FEB", FEB.ToString());
}
if (MAR != null)
{
current.SetAttribute("MAR", MAR.ToString());
}
if (APR != null)
{
current.SetAttribute("APR", APR.ToString());
}
if (MAY != null)
{
current.SetAttribute("MAY", MAY.ToString());
}
if (JUN != null)
{
current.SetAttribute("JUN", JUN.ToString());
}
if (JUL != null)
{
current.SetAttribute("JUL", JUL.ToString());
}
if (AUG != null)
{
current.SetAttribute("AUG", AUG.ToString());
}
if (SEP != null)
{
current.SetAttribute("SEP", SEP.ToString());
}
if (OCT != null)
{
current.SetAttribute("OCT", OCT.ToString());
}
if (NOV != null)
{
current.SetAttribute("NOV", NOV.ToString());
}
if (DEC != null)
{
current.SetAttribute("DEC", DEC.ToString());
}
return(current);
}
