protected override void LoadQuestion(System.IO.Stream stream)
{
this.a = (int)QuestionData.ReadValue(stream);
this.b = (int)QuestionData.ReadValue(stream);
this.op = (Operator)QuestionData.ReadValue(stream);
this.c = (int)QuestionData.ReadValue(stream);
string resultText = QuestionData.ReadText(stream);
if (resultText == "{NULL}")
{
this.result = null;
}
else
{
this.result = Convert.ToInt32(resultText);
}
string isCorrectText = QuestionData.ReadText(stream);
if (isCorrectText == "{NULL}")
{
this.IsCorrect = null;
}
else
{
this.IsCorrect = Convert.ToBoolean(isCorrectText);
}
}
internal QuestionData GetQuestionData()
{
if (this.CreateQuestionData != null)
{
this.currentQuestionData = this.CreateQuestionData();
this.questionDataCollection.Add(this.currentQuestionData);
}
return(this.currentQuestionData);
}
public static Question Load(Stream stream)
{
Question question = null;
int type = (int)QuestionData.ReadValue(stream);
if (type == Question_a_b_c.type)
{
question = new Question_a_b_c();
}
question.LoadQuestion(stream);
return(question);
}
public static QuestionData Load(string file)
{
QuestionData data = null;
FileStream fs = null;
try
{
fs = File.OpenRead(file);
// Read Header;
byte[] headerData = new byte[38];
fs.Read(headerData, 0, 38);
string header = Encoding.ASCII.GetString(headerData);
if (header == MathSetting.Instance.CurrentQuestionHeader)
{
data = MathSetting.Instance.GetQuestionData();
}
data.id = ReadText(fs);
data.createTime = DateTime.Parse(ReadText(fs));
data.maxNumber = (int)ReadValue(fs);
data.examTime = (int)ReadValue(fs);
data.questionCount = (int)ReadValue(fs);
data.leftTime = (int)ReadValue(fs);
data.pointPerQuestion = (float)ReadValue(fs);
data.passQuizCorrectCount = (int)ReadValue(fs);
int questionCount = (int)ReadValue(fs);
for (int i = 0; i < questionCount; i++)
{
data.questionCollection.Add(Question.Load(fs));
}
}
catch
{
}
finally
{
if (fs != null)
{
fs.Close();
}
}
return(data);
}
public override void Save(System.IO.Stream stream)
{
QuestionData.WriteValue(stream, type);
QuestionData.WriteValue(stream, this.a);
QuestionData.WriteValue(stream, this.b);
QuestionData.WriteValue(stream, (double)this.op);
QuestionData.WriteValue(stream, this.c);
if (this.result == null)
{
QuestionData.WriteText(stream, "{NULL}");
}
else
{
QuestionData.WriteText(stream, this.Result.Value.ToString());
}
if (this.IsCorrect == null)
{
QuestionData.WriteText(stream, "{NULL}");
}
else
{
QuestionData.WriteText(stream, this.IsCorrect.Value.ToString());
}
}