(转)Silverlight显示本地图片、Stream转Byte数组

转载自:http://www.cnblogs.com/forgetu/archive/2010/08/07/silverlight-load-local-image-stream-to-byte-array.html#commentform

通过 OpenFileDialog 浏览本地图片，然后将图片读取到文件流中，再将文件流转成 BitmapImage 就可以显示本地图片了。代码中ImageFromStream是一个Image控件。

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OpenFileDialog dlg = new OpenFileDialog(); dlg.Filter = "Image files|*.jpg|All files|*.*"; dlg.FilterIndex = 1; dlg.Multiselect = false; bool? result = dlg.ShowDialog().Value;   if (result == true) {     FileStream fileStream = dlg.File.OpenRead();                       BitmapImage image = new BitmapImage();     image.SetSource(fileStream);       ImageFromStream.Source = image;       fileStream.Close(); }

 

将Stream转成Byte数组

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private byte[] StreamToBytes(Stream stream) {     using (MemoryStream ms = new MemoryStream())     {         byte[] buffer = new byte[8 * 1024];         int read = 0;         while ((read = stream.Read(buffer, 0, buffer.Length)) > 0)         {             ms.Write(buffer, 0, read);         }           return ms.ToArray();     } }