对GridVew中操作列的执行提示

 protected void gvwVote_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        //如果是绑定数据行 
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            if (e.Row.RowState == DataControlRowState.Normal || e.Row.RowState == DataControlRowState.Alternate)
            {
                ((LinkButton)e.Row.Cells[4].Controls[0]).Attributes.Add("onclick", "javascript:return confirm('你确认要删除此投票活动吗?')");
            }
        }
    }