I'm trying to delete a Image file in WPF, but WPF locks the file.

    <Image Source="C:\person.gif" x:Name="PersonImage">
        <Image.ContextMenu>
            <ContextMenu>
                <MenuItem Header="Delete..." x:Name="DeletePersonImageMenuItem" Click="DeletePersonImageMenuItem_Click"/>
            </ContextMenu>
        </Image.ContextMenu>
    </Image>

And the Click handler just looks like this:

    private void DeletePersonImageMenuItem_Click(object sender, RoutedEventArgs e)
    {
        System.IO.File.Delete(@"C:\person.gif");
    }

But, when I try to delete the file it is locked and cannot be removed.

Any tips on how to delete the file?