c# - Delete a image, and delete from Image viewer under Win 8

Question

I'm using an pictue, first load the picture to a image control in xaml:

<Image Name="pic" Height="550" Width="400"  Source="{Binding img}"  Stretch="Fill"/>

After loading to image, i want delete the source file, and also delete from teh image control.

Button click:

pic.Source = null;   
StorageFile sf = null;
StorageFolder sd = ApplicationData.Current.LocalFolder;
sf = await sd.GetItemAsync("imgs\\img") as StorageFile;
await sf.DeleteAsync();

But :Access Denied.

I use this:

pic.Source = null;

but same problem. How can i delete the image ?

Thans for all reply!

Answer 1

解决方法是：这种格式是不可能的，但这解决了这个问题：

RandomAccessStreamReference rs= RandomAccessStreamReference.CreateFromUri(new Uri(path));
        BitmapImage bi = new BitmapImage();
        var rstream = await rs.OpenReadAsync();
        bitmapImage.SetSource(rstream);
        pic.Source = bi;

图像必须加载到流中，并且在文件可以被删除之后。