將IRandomAccessStream轉換爲RandomAccessStreamReference C＃

Question

我在下面的代碼中將IRandomAccessStream轉換爲RandomAccessStreamReference，但是當我看到結果時沒有共享圖像。我該如何處理？

if (imageFile != null) 
{ 
    using (IRandomAccessStream fileStream = await util.imageFile.OpenAsync(Windows.Storage.FileAccessMode.Read)) 
    { 
     this.imageStreamRef = RandomAccessStreamReference.CreateFromFile(imageFile); 
     this.dataPackageThumbnail = this.imageStreamRef; 
     // this.imageStream = await util.imageFile.OpenAsync(FileAccessMode.Read); 
     await fileStream.FlushAsync(); 
    } 
} 

Answer 1

http://msdn.microsoft.com/en-us/library/windows/apps/windows.storage.streams.irandomaccessstream

嘗試重置流（尋求）。