public bool IsValid()
{
return(!string.IsNullOrEmpty(Description) &&
Id != Guid.Empty &&
Questions != null &&
Questions.Any() ? Questions.All(s => s.IsValid()) : true);
}
public override void AnswerQuestion(IQuestion question, IAnswer answer)
{
if (question.State == QuestionState.Unanswered)
{
var hitScore = HitScore;
question.Answer = answer;
CorrectAnswers = Questions.Count(o => o.State == QuestionState.Correct);
IncorrectAnswers = Questions.Count(o => o.State == QuestionState.Incorrect);
question.AnswerOrder = CorrectAnswers + IncorrectAnswers;
if (question.State == QuestionState.Correct)
{
TotalScore += hitScore;
}
Completed = Questions.All(o => o.State != QuestionState.Unanswered);
}
}
public bool Verify()
{
return(Questions.All(verify => verify(this)));
}
public bool IsValidForSubmission()
{
return((Questions == null || Questions.All(q => q.Optional || !string.IsNullOrEmpty(q.Answer))) &&
(SubSections == null || SubSections.All(s => s.IsValidForSubmission())));
}
public bool IsComplete()
{
return((Questions == null || Questions.All(q => !string.IsNullOrEmpty(q.Answer))) &&
(SubSections == null || SubSections.All(s => s.IsComplete())));
}