//Gets a random QA to be displayed. Changes control based on user input
private void ShowQA()
{
QA qa = dataPool.GetQA();
string question = "Question:" + Environment.NewLine + qa.getQuestion();
DialogResult result = new DialogResult();
qaForm.SetQA(question, qa.getAnswers(), qa.getCorrectIndex());
result = qaForm.ShowDialog();
if (qaForm.GuessedCorrect)
{
qaForm.GuessedCorrect = false;
EmailMsg.Append("Q: ").Append(qa.getQuestion()).Append("\n").Append("A: ").Append(qaForm.CorrectAnswer).Append("\n\n");
ShowMsg();
}
else
{
ExitApp();
}
}
public void LoadData(string fileName)
{
//Load XML file
XDocument xmlDoc;
try
{
//Load XML file
xmlDoc = XDocument.Load(fileName);
//Load messages
MsgArray = xmlDoc.Root.Elements("msgscreen").Elements("msg").Select(element => element.Value).ToArray();
//Check # of messages
int MsgIndexRange = MsgArray.Count() - 1;
if (MsgIndexRange < 1) //Unsuccessful if fewer than 2 entries in xml file
{
throw new IOException("Fewer than two messages exist!");
}
else
{
MsgArrayNextRandNdx = MsgIndexRange;
}
//Load images
ImgArray = Directory.GetFiles(@"Pictures\");
//Check # of images
int ImgIndexRange = ImgArray.Count() - 1;
if (ImgIndexRange < 1) //Unsuccessful if fewer than 2 pictures available
{
throw new IOException("Fewer than two images exist!");
}
else
{
ImgArrayNextRandNdx = ImgIndexRange;
}
//Load questions and answers
int QASize = xmlDoc.Root.Elements("qascreen").Elements("qa").Count();
QAArray = new QA[QASize];
//Check # of QAs
int QAArrayIndexRange = QAArray.Count() - 1;
if (QAArrayIndexRange < 1) //Unsuccessful if fewer than 2 pictures available
{
throw new IOException("Fewer than two question/answers exist!");
}
else
{
QAArrayNextRandNdx = QAArrayIndexRange;
}
int i = 0;
foreach (XElement qa in xmlDoc.Root.Elements("qascreen").Elements("qa"))
{
string question = qa.Element("question").Value.ToString();
string answer = qa.Element("answer").Value.ToString();
string[] decoys = qa.Elements("decoy").Select(element => element.Value).ToArray();
if (decoys.Count() != 3)
{
throw new IOException("Exactly three decoy answers must exist for every QA!");
}
QAArray[i] = new QA(question, answer, decoys);
i++;
}
}
catch (IOException e)
{
throw new IOException(e.ToString());
}
}
