public bool IsLastQuestion(Question question)
{
if (!Questions.Contains(question))
throw new InvalidOperationException("The passed question is not in the list of questions for this quiz.");
return Questions.OrderByDescending(q => q.Order).Take(1).Single() == question;
}
private Question GetQuestion(IDataReader reader)
{
int questionID = reader.GetInt32(reader.GetOrdinal("QuestionID"));
string answerQuery = @"
SELECT [AnswerID], [Text], [Correct]
FROM [dbo].[Answer]
WHERE [QuestionID] = @QuestionID
";
IList<Answer> answers =
DBHelper.ExecuteReader<IList<Answer>>(new SqlConnection(DBHelper.ConnectionString), new SqlCommand(answerQuery), LoadAnswers,
new SqlParameter() { ParameterName = "@QuestionID", DbType = DbType.Int32, Value = questionID });
Question question =
new Question(
reader.GetString(reader.GetOrdinal("Text")),
reader.GetInt32(reader.GetOrdinal("PresentationOrder")),
answers);
_IdsByHashCode.Add(question.GetHashCode(), questionID);
return question;
}