“文件名”已损坏：Windows Phone 8.1

Question

我从隔离存储启动文档，当我调试下一个代码时，前一个流被关闭并获得此异常。

"File-Name" has been damaged and can't be opened.

请参阅下面的代码：

 using (IsolatedStorageFile storageFile = IsolatedStorageFile.GetUserStoreForApplication())
 {
     using (stream = storageFile.OpenFile("Document.docx", FileMode.Create))
     {
        await stream.WriteAsync(buffer, 0, buffer.Length);
     }               
 }

StorageFolder local = Windows.Storage.ApplicationData.Current.LocalFolder;
StorageFile pdffile = await local.GetFileAsync("Document.docx");

await Windows.System.Launcher.LaunchFileAsync(pdffile);

Answer 1

1）确定如果你从URI下载文件比你应该使用WebClient而不是HttpWebRequest 2）确保你输入正确的URI