Question

I have the following ViewModel

    public class ShowQuestionsViewModel
{
    public String CategoryName { get; set; }
    public String CategoryNumber { get; set; }

    public List<QuestionViewModel> QuestionsInCategory { get; set; }

    public ShowQuestionsViewModel()
    {
        QuestionsInCategory = new List<QuestionViewModel>();
    }
}

In my controller i set the properties like this (snippet):

ShowQuestionsViewModel sqvmsub = new ShowQuestionsViewModel();

var questionsSub = db.Question.Where(y => y.category_id == sub.category_id).ToList();

if (questionsSub != null)
{
   sqvmsub.CategoryName = sub.category_name;
   sqvm.CategoryNumber = sub.prefix;
   .....
}

When i try to display the Properties in my View, the CategoryNumber property is empty, even though it is set in controller (i checked by debugging)..:

@foreach (var item in Model)
{
    if (item.QuestionsInCategory.Count != 0)
    {
    <h3>@Html.LabelFor(y => item.CategoryName, item.CategoryName)</h3>
    <h3>@Html.LabelFor(y => item.CategoryNumber, item.CategoryNumber)</h3>

@Html.LabelFor(y => item.CategoryNumber, item.CategoryNumber)

Only displays the text “CategoryNumber”

If i try to change my controller like this:

sqvmsub.CategoryName = sub.prefix;

It displays what it is supposed to, which means there is nothing wrong with sub.prefix, but with CategoryNumber in the ShowQuestionsViewModel..

Does anyone have an idea of what is wrong?

Answer 1

I was apparently not setting the properties correctly. I changed it to:

ShowQuestionsViewModel sqvm = null;

var questionsMain = db.Question.Where(y => y.category_id == s.category_id).ToList();

if (questionsMain != null)
   {
      sqvm = new ShowQuestionsViewModel() { CategoryNumber = s.prefix, 
                                            CategoryName = s.category_name };
.....
}

It now work. Thanks for the help.