Sharepoint 2010 Windows 8应用程序CRUD操作

Question

我目前正在开发使用REST界面连接到sharepoint站点的Windows 8（Windows应用商店）应用。目前，我已成功设法从_vti_bin / ListData.svc / uri下拉列表数据。但是，我坚持在应用程序中创建新的列表项，并将这些列表发布回sharepoint。

我正在尝试使用HTTP POST方法，但是收到405错误代码：MethodNotAllowed。以下是我的代码：

HttpClientHandler clientHandler = new HttpClientHandler();
clientHandler.UseDefaultCredentials = true;

HttpClient newClient = new HttpClient(clientHandler);


// HttpResponseMessage response = newClient.PostAsync("http://sharepoint/.../_vti_bin/ListData.svc/Nominations", test);
var resp = await newClient.GetAsync(newUri("http://sharepoint/.../_vti_bin/ListData.svc/Nominations")); 

using (newClient)
using (var ms = new MemoryStream())
 {
  var djs = new DataContractJsonSerializer(typeof(NominationsItem));
  djs.WriteObject(ms, test);
  ms.Position = 0;
  var sc = new StreamContent(ms);
  sc.Headers.ContentType = new System.Net.Http.Headers.MediaTypeHeaderValue("application/json");

  resp = test == null
    ? await newClient.PutAsync(new Uri("http://sharepoint/.../_vti_bin/ListData.svc/Nominations"), sc)
    : await newClient.PostAsync(new Uri("http://sharepoint.../_vti_bin/ListData.svc/Nominations"), sc);

    resp.EnsureSuccessStatusCode();
  }

任何帮助将不胜感激！