Microsoft.HockeyApp.Model.FeedbackAttachment.LoadAttachmentFromServer C# (CSharp) Method

        public async Task<bool> LoadAttachmentFromServer()
        {
            bool retVal = false;
            if (String.IsNullOrWhiteSpace(this.RemoteURL))
            {
                throw new Exception("Attachment not found! Did you upload your attachment to the server?");
            }

            var request = WebRequest.CreateHttp(new Uri(this.RemoteURL, UriKind.Absolute));
            request.Method = "Get";
            request.SetHeader(HttpRequestHeader.UserAgent.ToString(), HockeyClient.Current.AsInternal().UserAgentString);

            try
            {
                var response = await request.GetResponseAsync();
                var ms = new MemoryStream();
                response.GetResponseStream().CopyTo(ms);
                this.DataBytes = ms.ToArray();
                retVal = true;
            }
            catch (Exception e)
            {
                var webex = e as WebException;
                if (webex != null)
                {
                    if (String.IsNullOrWhiteSpace(webex.Response.ContentType))
                    {
                        //Connection error during call
                        throw webex;
                    }
                    else
                    {
                        //404 Response from server => thread got deleted
                        retVal = false;
                    }
                }
                else
                {
                    throw;
                }
            }
            return retVal;

        }
    }