void OnFileRenamed(object sender, FileCopyEventArgs e)
{
// The folder path can't be updated because we would be changing
// the identity of the object. Another folder object will need
// to be created by updating the tree.
var e2 = new FileCopyEventArgs (e.Where (i => i.IsDirectory && i.SourceFile == absolutePath));
if (e2.Count > 0 && FolderRenamed != null)
FolderRenamed (this, e);
}
