protected void searchVehiClaim_Click(object sender, EventArgs e) { lstClaim.Items.Clear(); string begin = txtBegin.Text; string end = txtEnd.Text; Service mysr = new Service(); string result = mysr.FindClaim(begin, end); string[] vehiList = result.Split(';'); for (int i = 0; i < vehiList.Length; i++) { if (vehiList[i].Trim().Length > 0) { lstClaim.Items.Add(vehiList[i]); } } }