WebRequest request = WebRequest.Create(urlstring); request.Credentials = CredentialCache.DefaultCredentials; request.Method = "POST"; request.ContentType = "text/xml"; request.Header.Add("SOAPAction", 보낼곳); Byte[] requestBuffer = System.Text.UTF8Encoding.UTF8.GetByte(보낼xml); request.ContentLength = requestBuffer.Length; Stream requestStream = request.GetRequestStream(); requestStream.Write( requ..