如果用户不上传默认图片，是否可以将默认图片添加到HttpPostedFileBase中？

Question

我m trying to add a default image from the ~/Content/Images/image.jpg to the HttpPostedFileBase if used doesn不提供图片。

  if (imageRegisterView?.ContentLength == null)
                {
                    imageRegisterView.SaveAs(Server.MapPath("~/Content/Images/adult-1260380_640.jpg"));
                }