asp.net和angularjs的内部服务器错误

Question

我的JavaScript中有以下模型

$scope.newQuestionnaireForm = {
    QuestionnaireName: '',
    QuestionnaireCategory: '',
    QuestionnaireIntro: '',
    Duration: 2,
    Period: 'Weeks',
    StartDate: new Date($filter('date')(currentDate, "yyyy-MM-dd")),
    EndDate: '',
    Questions: [{ QuestionIndex: 1, QuestionDescription: '', QuestionType: 'TextBox', Choices: [{ ChoiceText: '' }] }]
};

我的C＃模型看起来像这样

public class NewQuestionnaireViewModel
{

    public string QuestionnaireName { get; set; }

    public string QuestionnaireCategory { get; set; }

    public string QuestionnaireIntro { get; set; }

    public string StartDate { get; set; }

    public string EndDate { get; set; }

    public bool IsDraft { get; set; }

    public QuestionViewModel[] Questions { get; set; }

}

public class QuestionViewModel
{

    public QuestionViewModel(int QuestionIndex, string QuestionDescription, string QuestionType, ChoiceViewModel[] Choices)
    {
        this.QuestionIndex = QuestionIndex;
        this.QuestionDescription = QuestionDescription;
        this.QuestionType = QuestionType;
        this.Choices = Choices;
    }
    public int QuestionIndex { get; set; }

    public string QuestionDescription { get; set; }

    public string QuestionType { get; set; }

    public ChoiceViewModel[] Choices { get; set; }

}

public class ChoiceViewModel
{

    public ChoiceViewModel(string ChoiceText)
    {
        this.ChoiceText = ChoiceText;
    }

    public string ChoiceText { get; set; }
}

然后使用以下javascript模型将其发布到服务器

QuestionnaireName: model.QuestionnaireName,
            QuestionnaireCategory: model.QuestionnaireCategory,
            QuestionnaireIntro: model.QuestionnaireIntro,
            StartDate: model.StartDate,
            EndDate: model.EndDate,
            IsDraft: isDraft,
            Questions: model.Questions

现在，当我尝试添加新的调查表时，它给了我一个内部服务器错误500错误。 为什么会这样？ 我怀疑模型绑定错误，因为它甚至没有到达我的控制器代码。