Lookup lists with NHibernate and ASP.Net MVC - asp.net-mvc

Question

I can't seem to get the value of a select list to populate the value of the parent object.
I'm using a wrapper object to bind to so that I have access to the values needed for the SelectList as well as the object which needs the value.
I'm willing to bet I'm missing something basic but I can't find it.
I have these models:
public class Status
{
public virtual int Id { get; protected set; }
public virtual string Name { get; set; }
public virtual bool IsClosed { get; set; }
public override string ToString()
{
return Name;
}
}
public class Issue
{
public virtual int Id { get; protected set; }
public virtual string Title { get; set; }
public virtual string Description { get; set; }
public virtual Status Status { get; set; }
public virtual DateTime CreatedOn { get; set; }
public virtual DateTime UpdatedOn { get; set; }
}
And a FormViewModel (from NerdDinner examples) to contain the list of Statuses
public class IssueFormViewModel
{
public Issue Issue { get; set; }
public SelectList Statuses { get; set; }
public IssueFormViewModel(Issue issue, IList<Status> statuses)
{
Issue = issue;
Statuses = new SelectList(statuses, "Id", "Name", statuses[1].Id );
}
public IssueFormViewModel() { }
}
My Create Actions on the Controller look like...
public ActionResult Create()
{
IList<Status> statuses;
Issue issue = new Issue();
// NHibernate stuff getting a List<Status>
return View(new IssueFormViewModel(issue,statuses));
}
[AcceptVerbs(HttpVerbs.Post)]
public ActionResult Create(IssueFormViewModel issueFormView)
{ // At this point issueFormView.Issue.Status == null
// ...
}
My Issue object is bound partially except the status using these names in the View:
<p>
<label for="Issue.Title">Title:</label>
<%= Html.TextBox("Issue.Title", Model.Issue.Title)%>
<%= Html.ValidationMessage("Title", "*") %>
</p>
<p>
<label for="Statuses">Status:</label>
<!-- also tried "Issue.Status" -->
<%= Html.DropDownList("Statuses", Model.Statuses)%>
<%= Html.ValidationMessage("Status", "*")%>
</p>

Answer 1

I tried the dropdown list on my computer and it works, you should make sure NHibernate is bringing back more than 1 item as your code is trying to set the selected item to be the second item.
Statuses = new SelectList(statuses, "Id", "Name", statuses[1].Id);
Remember that Lists a re zero based indexed.

Answer 2

As expected - it WAS something simple.
I changed the view to look like:
<label for="Status.Id">Status:</label>
<%= Html.DropDownList("Status.Id", Model.Statuses)%>
<%= Html.ValidationMessage("Status.Id", "*")%>
and the controller signature to take an "issue" (can't bind to a selectlist!)
[AcceptVerbs(HttpVerbs.Post)]
//public ActionResult Create(IssueFormViewModel issueFormView)
public ActionResult Create(Issue issueToAdd)
{
And in my Post-Create action I have an Issue with a Status. Albeit the status is invalid (it only contains the Id). So before commiting the Issue to the db, I set the issueToAdd like this:
issueToAdd.Status = (from p in GetAllStatuses()
where p.Id == issueToAdd.Status.Id
select p).First();
Edit: And it turns out I didn't even need to fetch a "proper" Status object. It's bound to Id and that's good enough.