public HttpWebRequestMessage(DataServiceClientRequestMessageArgs args) : base(args.ActualMethod) { Util.CheckArgumentNull(args, "args"); Debug.Assert(args.RequestUri.IsAbsoluteUri, "request uri is not absolute uri"); Debug.Assert( args.RequestUri.Scheme.Equals("http", StringComparison.OrdinalIgnoreCase) || args.RequestUri.Scheme.Equals("https", StringComparison.OrdinalIgnoreCase), "request uri is not for HTTP"); this.effectiveHttpMethod = args.Method; this.requestUrl = args.RequestUri; this.httpRequest = HttpWebRequestMessage.CreateRequest(this.ActualMethod, this.Url, args); // Now set the headers. foreach (var keyValue in args.Headers) { this.SetHeader(keyValue.Key, keyValue.Value); } }