file-upload - ServiceStack not binding FormData on multi-part request

Question

I'm performing file uploads from Javascript. The file is transferred fine, but the additional form data passed in the request is not bound to the request DTO.

From Chrome inspector:

------WebKitFormBoundaryunl7tsdqzGBvtsUH
Content-Disposition: form-data; name="albumId"

1037
------WebKitFormBoundaryunl7tsdqzGBvtsUH
Content-Disposition: form-data; name="file"; filename="Tulips.jpg"
Content-Type: image/jpeg

RequestDTO

public class UploadRequest : IRequiresRequestStream
{
    public Stream RequestStream { get; set; }
    public string FileName { get; set; }
    public long? AlbumId { get; set; }
}

The image is properly bound, but other items from form-data. What's interesting is that Request.FormData contains the entry for albumId.

Any clues ?

Answer 1

我认为这是由于UploadRequest继承自 IRequiresRequestStream绕过表单数据到 DTO 的任何绑定的事实。