gridview中增加自定义的删除提示

 protected void gvCategory_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        ImageButton imgbtn = (ImageButton)e.Row.FindControl("del");
        if (imgbtn != null)
        {
            imgbtn.Attributes.Add("onclick","return confirm('确定要删除吗')");
        }
    }

前台写法

OnClientClick="javascript:return confirm('删除该类别，其下所有新闻也将删除!\n\n你确定要删除吗？');"