Html.DropDownListFor<> and complex object in ASP.NET MVC2
- by dagda1
Hi,
I am looking at ASP.NET MVC2 and trying to post a complex object using the new EditorFor syntax.
I have a FraudDto object that has a FraudCategory child object and I want to set this object from the values that are posted from the form.
Posting a simple object is not a problem but I am struggling with how to handle complex objects with child objects.
I have the following parent FraudDto object whcih I am binding to on the form:
public class FraudDto
{
public FraudCategoryDto FraudCategory { get; set; }
public List<FraudCategoryDto> FraudCategories { get; private set; }
public IEnumerable<SelectListItem> FraudCategoryList
{
get
{
return FraudCategories.Select(t => new SelectListItem
{
Text = t.Name,
Value = t.Id.ToString()
});
}
The child FraudCategoryDto object looks like this:
public class FraudCategoryDto
{
public int Id { get; set; }
public string Name { get; set; }
}
On the form, I have the following code where I want to bind the FraudCategoryDto to the dropdown. The view is of type ViewPage:
<td class="tac">
<strong>Category:</strong>
</td>
<td>
<%= Html.DropDownListFor(x => x.FraudCategory, Model.FraudTypeList)%>
</td>
I then have the following controller code:
[HttpPost]
public virtual ViewResult SaveOrUpdate(FraudDto fraudDto)
{
return View(fraudDto);
}
When the form is posted to the server, the FraudCategory property of the Fraud object is null.
Are there any additional steps I need to hook up this complex object?
Cheers
Paul
