protected void linkBtnAddFriend_Click(object sender, EventArgs e)
        {
            try
            {
                using (UserService service = new UserService())
                {
                    LinkButton button = ((LinkButton)sender);

                    if (button.CommandName == "Approve")
                    {
                        FriendRequest request = new FriendRequest();
                        request.FromUserId = button.CommandArgument;
                        request.ToUserId = LoggedUser.ID;
                        service.ApproveFriendRequest(request);
                    }
                    else
                    {

                    }
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }