.net2.0 GridView移动到某一行改变背景色

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        //如果是绑定数据行 
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            //鼠标移入时，行背景色变 
            e.Row.Attributes.Add("onmouseover", "this.style.backgroundColor='#ff9900'");
            //鼠标移出时，行背景色变 
            e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor='#ffffff'");
        }
    }