c# Переводим с помощью Bing Api translator

using System;
using System.Text;
using System.Net;
using System.IO;
using System.Runtime.Serialization.Json;
using System.Runtime.Serialization;
using System.Web;
using System.ServiceModel.Channels;
using System.ServiceModel;

namespace BlogSubmitterFXApp
    public static class BingTranslate
        public static string Translate(string clientId,string ClientSecret,string TextForTranslate)
            AdmAccessToken admToken;
            string headerValue;
            //Get Client Id and Client Secret from https://datamarket.azure.com/developer/applications/
            //Refer obtaining AccessToken (http://msdn.microsoft.com/en-us/library/hh454950.aspx) 
            AdmAuthentication admAuth = new AdmAuthentication(clientId, ClientSecret);
                admToken = admAuth.GetAccessToken();
                DateTime tokenReceived = DateTime.Now;
                // Create a header with the access_token property of the returned token
                headerValue = "Bearer " + admToken.access_token;
                return BingTranslate.TranslateMethod(headerValue, TextForTranslate);
            catch (Exception ex)
                return ex.Message;

        static string TranslateMethod(string authToken, string TextForTranslate)
            // Add TranslatorService as a service reference, Address:http://api.microsofttranslator.com/V2/Soap.svc
            TranslatorService.LanguageServiceClient client = new TranslatorService.LanguageServiceClient();
            //Set Authorization header before sending the request
            HttpRequestMessageProperty httpRequestProperty = new HttpRequestMessageProperty();
            httpRequestProperty.Method = "POST";
            httpRequestProperty.Headers.Add("Authorization", authToken);

            // Creates a block within which an OperationContext object is in scope.
            using (OperationContextScope scope = new OperationContextScope(client.InnerChannel))
                OperationContext.Current.OutgoingMessageProperties[HttpRequestMessageProperty.Name] = httpRequestProperty;
                //string sourceText = "<UL><LI>Use generic class names. <LI>Use pixels to express measurements for padding and margins. <LI>Use percentages to specify font size and line height. <LI>Use either percentages or pixels to specify table and container width.   <LI>When selecting font families, choose browser-independent alternatives.   </LI></UL>";
                string translationResult;
                //Keep appId parameter blank as we are sending access token in authorization header.
                translationResult = client.Translate("", TextForTranslate, "en", "ru", "text/html", "general");
                return translationResult;

    public class AdmAccessToken
        public string access_token { get; set; }
        public string token_type { get; set; }
        public string expires_in { get; set; }
        public string scope { get; set; }

    public class AdmAuthentication
        public static readonly string DatamarketAccessUri = "https://datamarket.accesscontrol.windows.net/v2/OAuth2-13";
        private string clientId;
        private string cientSecret;
        private string request;

        public AdmAuthentication(string clientId, string clientSecret)
            this.clientId = clientId;
            this.cientSecret = clientSecret;
            //If clientid or client secret has special characters, encode before sending request
            this.request = string.Format("grant_type=client_credentials&client_id={0}&client_secret={1}&scope=http://api.microsofttranslator.com", HttpUtility.UrlEncode(clientId), HttpUtility.UrlEncode(clientSecret));

        public AdmAccessToken GetAccessToken()
            return HttpPost(DatamarketAccessUri, this.request);

        private AdmAccessToken HttpPost(string DatamarketAccessUri, string requestDetails)
            //Prepare OAuth request 
            WebRequest webRequest = WebRequest.Create(DatamarketAccessUri);
            webRequest.ContentType = "application/x-www-form-urlencoded";
            webRequest.Method = "POST";
            byte[] bytes = Encoding.ASCII.GetBytes(requestDetails);
            webRequest.ContentLength = bytes.Length;
            using (Stream outputStream = webRequest.GetRequestStream())
                outputStream.Write(bytes, 0, bytes.Length);
            using (WebResponse webResponse = webRequest.GetResponse())
                DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(AdmAccessToken));
                //Get deserialized object from JSON stream
                AdmAccessToken token = (AdmAccessToken)serializer.ReadObject(webResponse.GetResponseStream());
                return token;

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