C# 尝试使用JQuery提交表单数据会导致C中的空request.file#

HTML:

控制器：

$(document).on("change", "#image-upload", function(e) {
    $("#upload-image-form").submit();
}

为什么Request.Files会变成空文件？

我以前做过这件事，但现在我就是做不到

$(document).on("change", "#image-upload", function(e) {
    $("#upload-image-form").submit();
}

 public JsonResult UploadHomeReport()
    {
        try
        {
            foreach (string upload in Request.Files)
            {
                if (Request.Files[0] != null)
                {

                    var fileName = Path.GetFileName(upload);
                    MemoryStream target = new MemoryStream();
                    Request.Files[0].InputStream.CopyTo(target);
                    byte[] data = target.ToArray();
                    var path = Server.MapPath("~/App_Data/Images/" + fileName);
                    using (WebClient client = new WebClient())
                    {
                        client.UploadData(path, data);
                    }
                }
            }
        }
        catch (Exception)
        {
            Response.StatusCode = (int)HttpStatusCode.BadRequest;
            return Json("Upload failed");
        }

        return Json("File uploaded successfully");
    }