Question

guys. I have these ViewModels:

public class CandidateViewModel
{
    public string Name { get; set; }
    public IList<CourseViewModel> Courses { get; set; }
    //...
}

public class OptionViewModel
{
    public int Number { get; set; }
    public string Description { get; set; }
    //...
}

public class CourseViewModel
{
    public string Name { get; set; }
    public string SelectedCourse { get; set; }
    public IList<OptionViewModel> Options { get; set; }

    public CourseViewModel(int options)
    {
        Options.Add(new OptionViewModel(-1, string.Empty));
        for (int count = 1; count <= options; ++count)
            Options.Add(new OptionViewModel(
                count, string.Format("Option {0}", count)));

        Options.Add(new OptionViewModel(0, "Don't want it"));
    }
}

Well, I want to create a number of DropDownLists equals the number of Courses into CandidateViewModel. Each dropdown should be as options the OptionViewModel list of CourseViewModel instance. I need my final result like this:

<select name="Course1">
    <option value="-1"></option>
    <option value="1">Option 1</option>
    <option value="2">Option 2</option>
    <option value="3">Option 3</option>
    <option value="0">Don't want it</option>
</select>

<select name="Course2">
    <option value="-1"></option>
    <option value="1">Option 1</option>
    <option value="2">Option 2</option>
    <option value="3">Option 3</option>
    <option value="0">Don't want it</option>
</select>

However, my .cshtml page has CandidateViewModel as Model, and I can’t create by “Html.DropDownListFor” trhu Razor. Can you help me, please?

Thank you so much, guys!

Answer 1

You can use a partial view that uses desired type.

Also you may have trouble binding this model. Please take a look at this post MVC Model Binding to List of Complex Objects