protected void fill_leavetypes() { bus.userid = int.Parse(Session["user_id"].ToString()); DataTable dt2 = bus.fetch_leavetypes(); if (dt2.Rows.Count > 0) { ddlltype.DataSource = dt2; ddlltype.DataBind(); ddlltype.Items.Insert(0, new ListItem("-----SELECT-----", "")); } else { ScriptManager.RegisterStartupScript(this, GetType(), "displayalertmessage", "warning();", true); } }