Asp.Net中關於td的內容超出後自動隱藏問題

1. 頁面加載後執行js修改樣式：

<script type="text/javascript">
　　    function hiddenTdTextWhenOverflow() 
        {
            var tempTable = document.getElementById("G_ctl00xBodyContentPlaceHolderxctrlGlanceReportxuwgGlanceReport");
            var currentTBody = tempTable.getElementsByTagName("tbody")[0];
            var currentTBodyTrArr = currentTBody.childNodes;
            for (i = 0; i < currentTBodyTrArr.length; i++) {
                var currentTrTdArr = currentTBodyTrArr[i].childNodes;
                for (j = 0; j < currentTrTdArr.length; j++) {
                    currentTrTdArr[j].style.overflow = "hidden";
                }
            }
        }

        window.onload = hiddenTdTextWhenOverflow;
    </script>

2. 點擊按鈕執行完後臺代碼後執行js

在aspx文件中定義js函數：

<script type="text/javascript">
　　        function hiddenTdTextWhenOverflow() {
            var tempTable = document.getElementById("G_ctl00xBodyContentPlaceHolderxUltraWebGrid1");
            var currentTBody = tempTable.getElementsByTagName("tbody")[0];
            var currentTBodyTrArr = currentTBody.childNodes;
            for (i = 0; i < currentTBodyTrArr.length; i++) {
                var currentTrTdArr = currentTBodyTrArr[i].childNodes;
                for (j = 0; j < currentTrTdArr.length; j++) {
                    currentTrTdArr[j].style.overflow = "hidden";
                }
            }
        }

    </script>

後臺邏輯處理完局部頁面加載前執行函數，在.aspx.cs類型文件中調用：

protected void btnViewReport_Click(object sender, EventArgs e)
    {
        try
        {
            //此次爲後臺處理邏輯代碼

            ClientScript.RegisterStartupScript(this.GetType(), "hiddenTdTextWhenOverflow", @"<script type='text/javascript'>hiddenTdTextWhenOverflow();</script>");
        }
        catch (Exception ex)
        {
            divError.Visible = true;
            lblError.Text = ex.Message;
        }
    }