MVC :: Binding Drop Down List From ViewData?

Mar 11, 2010

I keep getting this error and i just can't figure it out:

The ViewData item that has the key 'CampaignId' is of type 'System.Int32' but must be of type 'IEnumerable<SelectListItem>'.
My Controller:
//show empty form
[AcceptVerbs(HttpVerbs.Get)]
public ViewResult Index(int? CampaignId)

[Code]....

I do need to have "CampaignId" in there because I'm populating some "partial views' based on this "CampaignId" that is selected (drop down)

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[Code]....

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