如何阅读使用。NET公共Twitter的饲料（在Windows Phone） [英] How do I read a public twitter feed using .Net (on Windows Phone)

问题描述

我想读取用户的公共Twitter的状态，所以我可以在我的Windows Phone应用程序显示出来。

I'm trying to read the public twitter status of a user so I can display it in my Windows Phone application.

我使用的是斯科特谷的例子： <一href="http://weblogs.asp.net/scottgu/archive/2010/03/18/building-a-windows-phone-7-twitter-application-using-silverlight.aspx">http://weblogs.asp.net/scottgu/archive/2010/03/18/building-a-windows-phone-7-twitter-application-using-silverlight.aspx

I'm using Scott Gu's example: http://weblogs.asp.net/scottgu/archive/2010/03/18/building-a-windows-phone-7-twitter-application-using-silverlight.aspx

在我的code回来的异步调用，我得到一个System.Security.SecurityException当我尝试使用e.Result。

When my code comes back from the async call, I get a "System.Security.SecurityException" as soon as I try to use the e.Result.

我知道我的URI是正确的，因为我可以扑通它在浏览器中，并获得了较好的效果。

I know my uri is correct because I can plop it in the browser and get good results.

下面是我的relavent code：

Here is my relavent code:

    public void LoadNewsLine()
    {
        WebClient twitter = new WebClient();

        twitter.DownloadStringCompleted += new DownloadStringCompletedEventHandler(twitter_DownloadStringCompleted);
        twitter.DownloadStringAsync(new Uri("http://api.twitter.com/1/statuses/user_timeline.xml?screen_name=krashlander"));          
    }

    void twitter_DownloadStringCompleted(object sender, DownloadStringCompletedEventArgs e)
    {
        XElement xmlTweets = XElement.Parse(e.Result); //exception thrown here!

        var message = from tweet in xmlTweets.Descendants("status")
                      select tweet.Element("text").Value;

       //Set message and tell UI to update.
       //NewsLine = message.ToString(); 
       //RaisePropertyChanged("NewsLine");
    }

任何想法吗？

Any ideas anyone?

解决方案： 我终于想通这一个。我只是忘了取消注释的：  能力在WMAppManifest.xml。 有一次，我做到了安全异常走。的

SOLUTION: I finally figured this one out. I had simply forgotten to uncomment the: capability in the WMAppManifest.xml. Once I did that the security exception went away.

推荐答案

我终于想通这一个。我只是忘了取消注释的：

I finally figured this one out. I had simply forgotten to uncomment the:

      <Capability Name="ID_CAP_NETWORKING"/>

在WM​​AppManifest.xml能力。有一次，我做到了安全异常走。

capability in the WMAppManifest.xml. Once I did that the security exception went away.

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