与Javascirpt配合使DataGrid变色的例子,选哪行,哪行变色

        /*
           <script>
           function checkme(obj,tr)
           {
                if(obj.checked)
                {
                    tr.style.backgroundColor='#46A3FF';
                }
                else
                {
                    tr.style.backgroundColor='';
                }
           }
           </script>
         */
        /// <summary>
        /// 与前台页面的一个JavaScript方法配合,完成了DataGrid控件的颜色变化
        /// </summary>
        /// <param name="dataGridName">要操作的DataGrid</param>
        public void ChangeColor(DataGrid dataGridName)
        {
            for (int i = 0; i < dataGridName.Items.Count; i++)
            {

                CheckBox cb;

                cb = (CheckBox)dataGridName.Items[i].FindControl("Radio_chk");

                dataGridName.Items[i].Attributes.Add("id", "tr" + i.ToString());

                cb.Attributes.Add("onclick", "checkme(this,tr" + i.ToString() + ");");

            }
        }