asp.net中在前台用js增删ListBox的items

asp.net中在前台用js增删ListBox的items(5)             string[] sField =Hidden1.Value.Split('#');
           
            //lstShowField.Items.Clear();
            DataTable dtField = new DataTable();
            dtField.Columns.Add("sDisplayName","".GetType());
            dtField.Columns.Add("sFieldName","".GetType());
            for (int i = 0 ; i < sField.Length ; i ++)
            {
                if (sField[i] == null sField[i] =="") continue;
                DataRow row = dtField.NewRow();
                row[0] = sField[i].Split('@')[0];
                row[1] = sField[i].Split('@')[1];
                dtField.Rows.Add(row);
            }
           
            lbFieldsSelect.DataSource = dtField;
            lbFieldsSelect.DataTextField = "sDisplayName";
            lbFieldsSelect.DataValueField = "sFieldName";
            lbFieldsSelect.DataBind();