Mvc Release Candidate “File” ActionResult

var a = Helper.Service.GetAttachmentById(id, MembershipProvider.SecurityTicket);

        if (a == null)
        {
            return View(new ImagePlaceHolderViewData(new { Id = id }));
        }
        return View(new ImagePlaceHolderViewData(new { Id = a.Id, Image = a, FileContent = File(a.Data, a.ContentType) }));

<img src="<%=Model.FileContent.FileContents %>" />

<img src="<%=Model.FileContent%>" />

<img src="<%=Model.FileContent.FileContents %>" />

<img src="/image/result/12345" />

public class ImageController : Controller
{
    public ActionResult Result(int resultID)
    {
        // Do stuff here...

        return File(..);
    }
}

<img src="FileStream#1" />

<img src="/Images/View/1" />

<img src="data:image/gif;base64,<%=Convert.ToBase64(Model.FileContent)%>"/>