public ActionResult DeleteUser_Controller(String userName)
{
DocumentsOperations docOps = new DocumentsOperations();
AuthenticationsAndAuthorizationsOperations aNaOps = new AuthenticationsAndAuthorizationsOperations();
docOps.RemoveUsersFilesAuthorizationsByUserName(aNaOps.GetUserIDByUserName(userName));
bool delUserStatus = Membership.DeleteUser(userName, true);
return(RedirectToAction("ListUsers"));
}