protected void BtDelete_Click(object sender, EventArgs e) { Slide = new Slide(); string id = string.Empty; foreach (RepeaterItem items in rptGroup.Items) { CheckBox checkboxID = (CheckBox)items.FindControl("checkboxID"); if (checkboxID.Checked) { Literal ltlIDChuyenmuc = (Literal)items.FindControl("ltlIDChuyenmuc"); id = ltlIDChuyenmuc.Text.Trim(); Slide.DeleteSlide(id); } } try { Response.Redirect(Globals.UrlRoot + "temp.aspx?url=" + Request.Url); } catch (Exception ae) { string ad = ae.ToString(); } }