batch request multiple file upload

gistfile1.txt

 dynamic result = fb.Batch(
                new FacebookBatchParameter(HttpMethod.Post, "/me/photos", new Dictionary<string, object> { { "message", "picture 1 msg" }, { "pic1", new FacebookMediaObject { ContentType = "image/jpeg", FileName = "Tulips.jpg" }.SetValue(File.ReadAllBytes(@"C:\Users\Public\Pictures\Sample Pictures\Tulips.jpg")) } }),
                new FacebookBatchParameter(HttpMethod.Post, "/me/photos", new Dictionary<string, object> { { "message", "picture 2 msg" }, { "pic2", new FacebookMediaObject { ContentType = "image/jpeg", FileName = "Penguins.jpg" }.SetValue(File.ReadAllBytes(@"C:\Users\Public\Pictures\Sample Pictures\Penguins.jpg")) } }));