CODEWITHSUNDEEP
asp.net-mvc
developer747
developer747

Reputation: 15958

Trouble using Html.dropDownList() in MVC2

I have this function that returns the type IEnumerable<SelectListItem>.

 public IEnumerable<SelectListItem> GetItems()
        {


            IEnumerable<SelectListItem> results = null;

            results =*(some logic)*


            return results;
        }

I try to bind this to dropdown in a view using 

 <% foreach (IEnumerable<SelectListItem> schdItem in Model.GetItems())
{%>

       <%= Html.DropDownList("xxx", schdItem)%>

<%} %>

But it breaks with the error message 

Unable to cast object of type 'System.Web.Mvc.SelectListItem' to type 'System.Collections.Generic.IEnumerable`1[System.Web.Mvc.SelectListItem]'.

How do I fix this?

Based on the comment from asawyer I modified it to

  <%= Html.DropDownList("xxx", Model.GetScheduleItems())%>

now it works!

Upvotes: 0

Views: 327

Answers (2)

Erik Funkenbusch
Erik Funkenbusch

Reputation: 93464

<%= Html.DropDownList("xxx", Model.GetItems())%>

Althought this is a terrible way to go about it. Instead, you should be using Html.DropDownListFor such as this:

<%= Html.DropDownListFor(Model.SelectedItem, Model.Items) %>

Where Model.SelectedItem is the type of item, and Model.Items is a property that returns a collection of SelectListItems.

Upvotes: 1

Gabe
Gabe

Reputation: 50523

No loop needed, just this.

<%= Html.DropDownList("xxx", Model.GetItems())%>

I would make the SelectList a property on your model rather than a getter method.

<%= Html.DropDownList("xxx", Model.MySelectList)%>

Upvotes: 1

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