Silverlight Download Image

我在設計網路相簿時，必須由 server 下載照片，花了不少時間找相關資料，發現下列三種方式可以使用。 1. 利用 Web Service 將 image 以 byte[] 下傳。 2. 利用 BitmapImage.UriSource 方式下載。 3. 利用 WebClient 方式下載。(ps.僅能讀取同一站台內的資料) 範例分別如下： --- Web Service --- private void LoadAllPhoto() { PhotoServiceReference.PhotoServiceClient proxy = new PhotoManager.PhotoServiceReference.PhotoServiceClient(); proxy.GetPhotoCompleted += new EventHandler<PhotoManager.PhotoServiceReference.GetPhotoCompletedEventArgs>(proxy_GetPhotoCompleted); proxy.GetPhotoAsync(); } private Image imageShow; void proxy_GetPhotoCompleted(object sender, PhotoManager.PhotoServiceReference.GetPhotoCompletedEventArgs e) { MemoryStream stream = new MemoryStream(); stream.Write(e.Result, 0, e.Result.Length); stream.Position = 0; BitmapImage image = new BitmapImage(); image.SetSource(stream); Image imageShow = new Image(); imageShow.Source = image; this.LayoutRoot.Children.Add(imageShow); } --- BitmapImage --- BitmapImage image = new BitmapImage(); image.UriSource = new Uri("...", UriKind.Absolute); image.DownloadProgress += new EventHandler<DownloadProgressEventArgs>(image_DownloadProgress); Image image.SetSource(stream); imageShow = new Image(); imageShow.Source = image; this.LayoutRoot.Children.Add(imageShow); --- WebClient --- WebClient imageLoader = new WebClient(); imageLoader.OpenReadCompleted += new OpenReadCompletedEventHandler(imageLoader_OpenReadCompleted); imageLoader.OpenReadAsync(new Uri("...", UriKind.Absolute)); void imageLoader_OpenReadCompleted(object sender, OpenReadCompletedEventArgs e) { BitmapImage image = new BitmapImage(); image.SetSource(e.Result); Image imageShow = new Image(); imageShow.Source = image; this.LayoutRoot.Children.Add(imageShow); }