//-------------------------------------------------------------------------------------------------------------------------------------------------------
/// <summary>
/// theory functions
/// </summary>
/// <param name="theoryQuestion"></param>
public void Add_theory_q(BE.TheoryQuestion theoryQuestion)
{
if (theoryQuestion.Question == null)
{
throw new Exception("שגיאה בהוספת שאלה: השאלה לא יכולה להיות ריקה. ");
}
Dal.Add_theory_q(theoryQuestion);
}
public void Remove_theory_q(BE.TheoryQuestion theoryQuestion)
{
try
{
TheoryRoot = XElement.Load(TheoryPath);
XElement TheoryElement = (from item in TheoryRoot.Elements()
where item.Element("Question").Value == theoryQuestion.Question
select item).FirstOrDefault();
TheoryElement.Remove();
TheoryRoot.Save(TheoryPath);
}
catch
{
throw new Exception("שגיאה במחיקת השאלה: לא ניתן למצוא את השאלה");
}
}
/// <summary>
///
/// </summary>
/// <param name="question"></param>
/// <param name="rand"></param>
public string[] GetOptions(BE.TheoryQuestion question, Random rand)
{
List <string> options = new List <string>(question.Wrong);
options.Add(question.Answer);
string[] random_options = new string[4];
for (int i = 0; i < random_options.Length; i++) // getting a random options without repeat
{
int index = rand.Next(0, options.Count);
random_options[i] = options[index];
options.RemoveAt(index);
}
return(random_options);
}
/// <summary>
///
/// </summary>
public BE.TheoryQuestion[] GetTheoryTest()
{
List <BE.TheoryQuestion> tq = Dal.GetTQ();
BE.TheoryQuestion[] return_test = new BE.TheoryQuestion[BE.Configuration.Amount_questions];
Random rand = new Random();
for (int i = 0; i < return_test.Length; i++) // getting a random question without repeat
{
int index = rand.Next(0, tq.Count);
return_test[i] = tq[index];
return_test[i].Student_answer = "לא ענית תשובה";
tq.RemoveAt(index);
}
return(return_test);
}
//----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
/// <summary>
/// theory functions
/// </summary>
/// <param name="theoryQuestion"></param>
public void Add_theory_q(BE.TheoryQuestion theoryQuestion)
{
try
{
TheoryRoot = XElement.Load(TheoryPath);
XElement Question = new XElement("Question", theoryQuestion.Question);
XElement Answer = new XElement("Answer", theoryQuestion.Answer);
XElement Wrong = WrongToSXElement(theoryQuestion.Wrong);
XElement Image_code = new XElement("Image_code", theoryQuestion.Image_code);
TheoryRoot.Add(new XElement("TheoryQuestion", Question, Answer, Wrong, Image_code));
TheoryRoot.Save(TheoryPath);
}
catch
{
throw new Exception("שגיאה בשמירת מבחן: קרתה תקלה בגישה אל קובץ הנתונים, אנא נסה שוב");
}
}
public TheoryQuestionUserControl(BE.TheoryQuestion tq, CheckBox cb, int index, Random rand)
{
InitializeComponent();
theory_question = tq;
check_box = cb;
options = new RadioButton[] { option1, option2, option3, option4 };
questin.Text = "שאלה " + (index + 1) + ": " + theory_question.Question;
string[] QandA = iBL_Imp.GetOptions(theory_question, rand);
for (int i = 0; i < options.Length; i++)
{
options[i].Content = QandA[i];
options[i].Checked += Option_Checked;
}
if (theory_question.Image_code != null)
{
question_image.Source = iBL_Imp.StringToBitmap(theory_question.Image_code);
question_image.Visibility = Visibility.Visible;
}
}
public void Remove_theory_q(BE.TheoryQuestion theoryQuestion)
{
}
//--------------------------------------------------------------
public void Add_theory_q(BE.TheoryQuestion theoryQuestion)
{
}
public void Remove_theory_q(BE.TheoryQuestion theoryQuestion)
{
Dal.Remove_theory_q(theoryQuestion);
}
