WebClient请求c＃wp7 Uri.length期间发生异常非常长

Question

问题在于，如果我执行Webclient.DownloadStringAsync(Uri)，而Uri.length很长，我会看到错误：An exception occurred during a WebClient request

对于Webclient的URI是对链接长度的限制吗？ 如果链接很长怎么办？

WebClient queueItem_client = new WebClient();
queueItem_client.DownloadStringCompleted += new DownloadStringCompletedEventHandler(queueItem_client_DownloadStringCompleted);
            queueItem_client.DownloadStringAsync(execUri);

void queueItem_client_DownloadStringCompleted(object sender, DownloadStringCompletedEventArgs e)
{}

execUri个链接长度为2234个字符。

如果execUri由大约500个字符组成，那么就会出现正常响应。

Answer 1

某些浏览器对URI实施限制。见What is the maximum length of a URL in different browsers?。如果可能长的Uri（超过2000个字符）考虑将此请求更改为Post而不是GET并将您的参数放入正文中。