gridview 选中时的行的样式

protected void GroupsLists_RowDataBound(object sender, GridViewRowEventArgs e)
        {
            if (e.Row.RowType == DataControlRowType.DataRow)//判定当前的行是否属于datarow类型的行
            {
                //当鼠标放上去的时候 先保存当前行的背景颜色 并给附一颜色
                e.Row.Attributes.Add("onmouseover", "currentcolor=this.style.backgroundColor;this.style.backgroundColor='#ffffcd',this.style.fontWeight='';");
                //当鼠标离开的时候 将背景颜色还原的以前的颜色
                e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor=currentcolor,this.style.fontWeight='';");

                LinkButton btnDel = ((LinkButton)e.Row.FindControl("btn_del"));

                btnDel.Attributes.Add("onclick", "return confirm('您确认要删除该记录吗?')");

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