protected void SortByTitle_linkBtn_Click(object sender, EventArgs e) { List<Book> list = new List<Book>(); list = sc.OrderByTitle(); try { this.GridView1.DataSource = list; this.GridView1.DataBind(); } catch (Exception ex) { string errormsg = string.Format("<script>Error:{0}</script>", ex.Message); Response.Write(errormsg); } }