Store file in SQL Server database using .Net MVC3 with Entity Framework

Here's some "sample codes" ;) I omitted bunch of declarations, validation, etc. so the code will not run as is, but you should be able to get the idea. Use ajax type request to submit your file form if you don't want to refresh the page.

// model
public class UploadedImage
{
    public int UploadedImageID { get; set; }
    public string ContentType { get; set; }
    public byte[] File { get; set; }
}

// controller
public ActionResult Create()
{
    HttpPostedFileBase file = Request.Files["ImageFile"];

    if (file.ContentLength != 0)
    {
        UploadedImage img = new UploadedImage();
        img.ContentType = file.ContentType;
        img.File = new byte[file.ContentLength];

        file.InputStream.Read(img.File, 0, file.ContentLength);

        db.UploadedImages.Add(img);
        db.SaveChanges();
    }

    return View();
}

ActionResult Show(int id) 
{
    var image = db.UploadedImages.Find(id);
    if (image != null)
    {
        return File(image.File, image.ContentType, "filename goes here");
    }
}