Question

我有一个Silverlight 5应用程序正在调用OData服务（OOTB与SharePoint 2010一起使用）以从列表中提取数据。使用Windows身份验证保护站点。当我运行测试时，系统会提示我登录，但结果总是说结果集中返回的结果为零。

现在这就是奇怪的。我知道列表中有数据（当我手动插入OData请求URL时，我看到结果在浏览器中返回）。当我在运行测试时观察Fiddler时，我看到了一些对clientaccesspolicy.xml的请求（所有这些都是401响应）...然后我登录＆amp;它成功获取clientaccesspolicy.xml文件。但是，即使应用程序说它运行查询并返回零结果，我也没有在Fiddler中看到实际的OData服务请求（在成功调用clientaccesspolicy.xml之后没有任何内容。

这是代码的样子：

private DataServiceCollection<InstructorsItem> _dataCollection = new DataServiceCollection<InstructorsItem>();

private Action<IEnumerable<Instructor>> _callbackWithData;

/// <summary>
/// Retrieves a list of instructors from the data service.
/// </summary>
public void GetInstructors(Action<IEnumerable<Instructor>> callback) {
  // save callbacks
  ResetCallbacks();
  _callbackWithData = callback;

  // get the instructors
  var query = from instructor in IntranetContext.Instructors
              select instructor;

  // execute query
  RunQuery(query);
}

/// <summary>
/// Retrieves instructors from the data source based on the specified query.
/// </summary>
/// <param name="query">Query to execute</param>
private void RunQuery(IQueryable<InstructorsItem> query) {
  // clear the collection & register the load completed method
  _dataCollection.Clear();
  _dataCollection.LoadCompleted += OnLoadDataCompleted;

  // fire the load
  _dataCollection.LoadAsync(query.Take(5));
}

/// <summary>
/// Handler when the data has been loaded from the service.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
void OnLoadDataCompleted(object sender, LoadCompletedEventArgs e) {
  // remove the event handler preventing double loads
  _dataCollection.LoadCompleted -= OnLoadDataCompleted;

  // convert the data to a generic list of objects
  var results = _dataCollection.ToList<InstructorsItem>();

  // TODO: convert results to local objects
  List<Instructor> convertedResults = new List<Instructor>();
  foreach (var item in results) {
    convertedResults.Add(new Instructor() { 
      SharePointId = item.Id,
      Name = item.Title
    });
  }

  // run the callback
  _callbackWithData(convertedResults);
}

这就是测试运行器看起来像触发它的东西：

[TestMethod]
[Asynchronous]
[Description("Test loading instructors from the OData Intranet service.")]
public void TestGetInstructors() {
  bool asyncCallCompleted = false;
  List<Instructor> result = null;

  // call data service
  _dataService.GetInstructors(asyncResult => {
    asyncCallCompleted = true;
    result = new List<Instructor>(asyncResult);
  });

  // run test when call completed
  EnqueueConditional(() => asyncCallCompleted);
  EnqueueCallback(
    () => Assert.IsTrue(result.Count > 0, "Didn't retrieve any instructors."));
  EnqueueTestComplete();
}

不能为我的生活弄清楚（1）为什么我没有看到Fiddler中的查询显示没有错误，实际上它说运行测试时没有错误。

Answer 1

如果您在同一台计算机上运行服务器和客户端，则没有外部HTTP流量，因此Fiddler无法接收。

在Fiddler中出现的OData请求节目（SharePoint＆amp; Silverlight 5）

1 个答案: