protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
        {
            if (e.CommandName == "return")
            {
                BorrowRepository repo = new BorrowRepository();
                List <MRSLibrary.CustomizeDisplay.BorrowReturned> br = new List <MRSLibrary.CustomizeDisplay.BorrowReturned>();
                long id = Convert.ToInt64(e.CommandArgument);
                repo.ReturnMovieForBorrow(id);
                br = repo.GetReturnedData(id);

                DetailsView1.DataSource = br;
                DetailsView1.DataBind();
            }
        }