Silverlight Windows Phone 7 : Load Images From URL

Question

我得到了下面的代码，它试图将网络中的图像加载到图像控件中，当我运行它时，我在给定的行上收到一个错误，提示不允许网络访问:

private void button1_Click(object sender, RoutedEventArgs e)
        {
            WebClient webClientImgDownloader = new WebClient();
            webClientImgDownloader.OpenReadCompleted += new OpenReadCompletedEventHandler(webClientImgDownloader_OpenReadCompleted);
            webClientImgDownloader.OpenReadAsync(new Uri("http://dilbert.com/dyn/str_strip/000000000/00000000/0000000/000000/80000/5000/100/85108/85108.strip.print.gif", UriKind.Absolute));
        }

        void webClientImgDownloader_OpenReadCompleted(object sender, OpenReadCompletedEventArgs e)
        {
            BitmapImage bitmap = new BitmapImage();
            bitmap.SetSource(e.Result); // ERROR HERE!
            image1.Source = bitmap;
        }

适用于 Windows Phone 7 的 Silverlight

Answer 1

尝试使用 WebClient 下载内容将需要在源服务器上存在客户端访问策略文件。对于图像，您可以通过这样做来避免此要求:-

private void button1_Click(object sender, RoutedEventArgs e)
{
    Uri uri = new Uri("http://dilbert.com/dyn/str_strip/000000000/00000000/0000000/000000/80000/5000/100/85108/85108.strip.print.gif", UriKind.Absolute)
    image1.Source = new BitmapImage(uri);
}