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Problems with ASP MVC + Html.DropDownList () using ModelView template

I recently posted a question about the html helper dropdown and got it working ( here ). But now I decided it was a lot smarter to switch to ModelView Templates, so I have access to strongly typed methods in my views, etc. I made some code changes in my other topic as follows:

VacatureFormViewModel:

public class VacaturesFormViewModel
{
    public Vacatures Vacature { get; private set; }
    public SelectList EducationLevels { get; private set; }
    public SelectList Branches { get; private set; }
    public SelectList CareerLevels { get; private set; }

    Repository repository;

    // Constructor
    public VacaturesFormViewModel(Vacatures vacature)
    {
        this.Vacature = vacature;
        this.repository = new Repository();
        this.EducationLevels = new SelectList(repository.GetAllEducationLevels(),"ID","Name",vacature.EducationLevels);
        this.Branches = new SelectList(repository.GetAllBranches(),"ID","Name",vacature.Branches);
        this.CareerLevels = new SelectList(repository.GetAllCareerLevels(), "ID", "Name", vacature.CareerLevels);

    }
}

BanenController:

//
    // GET: /Banen/Create

    public ActionResult Create()
    {
        Vacatures vacature = new Vacatures();
        return View(new VacaturesFormViewModel(vacature));
    }

    //
    // POST: /Banen/Create

    [AcceptVerbs(HttpVerbs.Post)]
    public ActionResult Create(Vacatures vacatureToAdd)
    {
        if (ModelState.IsValid)
        {
            try
            {
                // TODO: Add insert logic here
                repository.AddToVacatures(vacatureToAdd);
                repository.SaveChanges();

                // Return to listing page if succesful
                return RedirectToAction("Index");
            }
            catch (Exception e)
            {
                return View();
            }
        }
    }

And my view of Create.aspx (part of it):

<% using (Html.BeginForm()) {%>

    <fieldset>
        <legend>Fields</legend>
        <p>
            <label for="Title">Title:</label>
            <%= Html.TextBox("Title", Model.Vacature.Title) %>
            <%= Html.ValidationMessage("Title", "*") %>
        </p>
        <p>
            <label for="Content">Content:</label>
            <%= Html.TextArea("Content", Model.Vacature.Content) %>
            <%= Html.ValidationMessage("Content", "*") %>
        </p>
        <p>
            <label for="EducationLevels">EducationLevels:</label>
            <%= Html.DropDownList("EducationLevels", Model.EducationLevels)%>
            <%= Html.ValidationMessage("EducationLevels", "*") %>
        </p>
        <p>
            <label for="CareerLevels">CareerLevels:</label>
            <%= Html.DropDownList("CareerLevels", Model.CareerLevels)%>
            <%= Html.ValidationMessage("CareerLevels", "*")%>
        </p>
        <p>
            <label for="Branches">Branches:</label>
            <%= Html.DropDownList("Branches", Model.Branches)%>
            <%= Html.ValidationMessage("Branches", "*")%>
        </p>
        <p>
            <input type="submit" value="Save" />
        </p>
    </fieldset>
<% } %>

For guidance I used NerdDinner from ScottGu and here I read various topics.

, , MVC ASP , (dropdownlists), , , . SelectList :

this.CareerLevels = new SelectList(repository.GetAllCareerLevels(), vacature.CareerLevels);

, "" "" ( , - post, ), : vacature.EducationLevels .. , , .

, , , , . ?

, :

[AcceptVerbs(HttpVerbs.Post)]
    public ActionResult Create(FormCollection form)
    {
        Vacatures vacatureToAdd = new Vacatures();

        // Retrieve the education level by its ID
        if (!form["EducationLevels"].Equals(""))
        {
            Guid educationID = new Guid(form["EducationLevels"]);
            vacatureToAdd.EducationLevels = repository.GetEducationLevelByID(educationID);
        }

? , .

0
3

Guid:

dropdownlists . , , :

public class VacaturesFormViewModel
{

    public IEnumerable<SelectListItem>EducationLevels{ get; set; }
    public Guid EducationLevelID{ get; set; }

}

EducationLevelID Dropdown. :

<%= Html.DropDownList("EducationLevelID", Model.EducationLevels)%>


  IEnumerable<SelectListItem> educationLevelList =
                            from level in GetLevelList()
                            select new SelectListItem
                            {
                                Text = level .Name,
                                Value = level.Uid.ToString()
                            };
  model.EducationLevels = educationLevelList ;
+2

, , . ( )

+1

educationID :

[AcceptVerbs(HttpVerbs.Post)]
public ActionResult Create(Guid? educationID, FormCollection form)
{
    Vacatures vacatureToAdd = new Vacatures();

    if (educationID != null)
    {
        vacatureToAdd.EducationLevels = 
            repository.GetEducationLevelByID(educationID.Value);
    }
+1

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