Facebook.FacebookMediaObject.GetValue C# (CSharp) Method

        public byte[] GetValue()
        {
            return _value;
        }
    }

        /// <summary>
        /// Builds the request post data if the request contains a media object
        /// such as an image or video to upload.
        /// </summary>
        /// <param name="parameters">
        /// The request parameters.
        /// </param>
        /// <param name="boundary">
        /// The multipart form request boundary.
        /// </param>
        /// <returns>
        /// The request post data.
        /// </returns>
        internal static byte[] BuildMediaObjectPostData(IDictionary <string, object> parameters, string boundary)
        {
            FacebookMediaObject mediaObject = null;

            // Build up the post message header
            var sb = new StringBuilder();

            foreach (var kvp in parameters)
            {
                if (kvp.Value is FacebookMediaObject)
                {
                    // Check to make sure the file upload hasn't already been set.
                    if (mediaObject != null)
                    {
//                        throw new InvalidOperationException(Facebook.Properties.Resources.MultipleMediaObjectsError);
                    }

                    mediaObject = kvp.Value as FacebookMediaObject;
                }
                else
                {
                    sb.Append(FacebookUtils.MultiPartFormPrefix).Append(boundary).Append(FacebookUtils.MultiPartNewLine);
                    sb.Append("Content-Disposition: form-data; name=\"").Append(kvp.Key).Append("\"");
                    sb.Append(FacebookUtils.MultiPartNewLine);
                    sb.Append(FacebookUtils.MultiPartNewLine);
                    sb.Append(kvp.Value);
                    sb.Append(FacebookUtils.MultiPartNewLine);
                }
            }

            Debug.Assert(mediaObject != null, "The mediaObject is null.");

            if (mediaObject.ContentType == null || mediaObject.GetValue() == null || mediaObject.FileName == null)
            {
//                throw new InvalidOperationException(Facebook.Properties.Resources.MediaObjectMustHavePropertiesSetError);
            }

            sb.Append(FacebookUtils.MultiPartFormPrefix).Append(boundary).Append(FacebookUtils.MultiPartNewLine);
            sb.Append("Content-Disposition: form-data; filename=\"").Append(mediaObject.FileName).Append("\"").Append(FacebookUtils.MultiPartNewLine);
            sb.Append("Content-Type: ").Append(mediaObject.ContentType).Append(FacebookUtils.MultiPartNewLine).Append(FacebookUtils.MultiPartNewLine);

            byte[] postHeaderBytes = Encoding.UTF8.GetBytes(sb.ToString());
            byte[] fileData        = mediaObject.GetValue();
            byte[] boundaryBytes   = Encoding.UTF8.GetBytes(String.Concat(FacebookUtils.MultiPartNewLine, FacebookUtils.MultiPartFormPrefix, boundary, FacebookUtils.MultiPartFormPrefix, FacebookUtils.MultiPartNewLine));

            // Combine all bytes to post
            var postData = new byte[postHeaderBytes.Length + fileData.Length + boundaryBytes.Length];

            Buffer.BlockCopy(postHeaderBytes, 0, postData, 0, postHeaderBytes.Length);
            Buffer.BlockCopy(fileData, 0, postData, postHeaderBytes.Length, fileData.Length);
            Buffer.BlockCopy(boundaryBytes, 0, postData, postHeaderBytes.Length + fileData.Length, boundaryBytes.Length);

            return(postData);
        }