repeater 嵌套 点击子repeater时,怎么让它不收缩;

Question

<style type="text/css">
    .ttl
    {
        cursor: hand;
        color: #ffffff;
        padding-top: 4px;
    }
    A:active
    {
        color: #000000;
        text-decoration: none;
    }
    A:hover
    {
        color: #000000;
        text-decoration: none;
    }
    A:link
    {
        color: #000000;
        text-decoration: none;
    }
    A:visited
    {
        color: #000000;
        text-decoration: none;
    }
    TD
    {
        font-size: 12px;
        font-family: "Verdana" , "Arial" , "细明体" , "sans-serif";
    }
</style><script language="javascript" type="text/javascript">
        function showHide(obj){
        var oStyle = obj.parentElement.parentElement.parentElement.rows[1].style;
       
        oStyle.display == "none" ? oStyle.display = "block" : oStyle.display = "none";
        }
</script><div style=" border: 1px solid #3366CC; width:160px; text-align: center; background-color: #9aadcd;">
    <div>
        监测点列表</div>
    <asp:Repeater ID="rpMenu" runat="server" OnItemDataBound="rpsubMenu_ItemDataBound">
        <ItemTemplate>
            <table cellspacing="0" cellpadding="0" width="159" align="center" border="0">
                <tr>
                    <td width="23">
                        <img height="25" src="<%=ApplicationPath%>/images/box/box_topleft.gif" width="23">
                    </td>
                    <td class="ttl" onclick="JavaScript:showHide(this);" width="129" background="<%=ApplicationPath%>/images/box/box_topbg.gif">
                        <%# Eval("OutputName")%>
                    </td>
                    <td width="7">
                        <img height="25" src="<%=ApplicationPath%>/images/box/box_topright.gif" width="7">
                    </td>
                </tr>
                <!--<tr style="display: none"> -->
                <tr>
                    <td background='<%=ApplicationPath%>/images/box/box_bg.gif' colspan='3'>
                        <table width='100%'>
                            <tbody>
                                <asp:Repeater ID="rpMenu_Sub" runat="server">
                                    <ItemTemplate>
                                        <tr>
                                            <td>
                                                <img height='7' hspace='5' src='<%=ApplicationPath%>/images/box/arrow.gif' width='5' align='absMiddle'>                                                                               
                                                  <asp:LinkButton ID="lnkbtn" runat="server" CommandName="pollutantcode" CommandArgument='<%# DataBinder.Eval(Container.DataItem, "Outputcode")+"_"+DataBinder.Eval(Container.DataItem, "pollutantcode")%>'
                        OnCommand="lnkbtn_Command"  ><%# Eval("pollutantName")%></asp:LinkButton>
                        
                                             
                                            </td>
                                        </tr>
                                    </ItemTemplate>
                                </asp:Repeater>
                            </tbody>
                        </table>
                    </td>
                </tr>
                <tr>
                    <td colspan="3">
                        <img height='10' src="<%=ApplicationPath%>/images/box/box_bottom.gif" width='159'>
                    </td>
                </tr>
            </table>
        </ItemTemplate>
    </asp:Repeater>
    <div style="font-size: 12px; width: 163px;">
        <asp:RadioButton ID="rdbtnWater" runat="server" Text="废水" AutoPostBack="True" Checked="True"
            GroupName="rdlist" OnCheckedChanged="rdbtnWater_CheckedChanged" />
        <asp:RadioButton ID="rdbtnGos" runat="server" Text="废气" AutoPostBack="True" GroupName="rdlist"
            OnCheckedChanged="rdbtnWater_CheckedChanged" />
    </div>
</div>
前台后台: protected void lnkbtn_Command(object sender, CommandEventArgs e)
    {        
        if (e.CommandName == "pollutantcode" && e.CommandArgument.ToString() != "")
        {
            string strText = e.CommandArgument.ToString();        string Sp = "_";        char[] Char = Sp.ToCharArray();        string[] strArray = strText.Split(Char);        OutputCode = strArray[0].ToString().Trim();
        pollutantcode = strArray[1].ToString().Trim();        this.onclick(e);
        
        }
    }

Answer 1

 <asp:LinkButton ID="lnkbtn" runat="server" CommandName="pollutantcode" CommandArgument=' <%# DataBinder.Eval(Container.DataItem, "Outputcode")+"_"+DataBinder.Eval(Container.DataItem, "pollutantcode")%>' 
                        OnCommand="lnkbtn_Command"  > <%# Eval("pollutantName")%> </asp:LinkButton>
我发现只要给后台提交就会收缩,不提交一切正常,可是我的程序要求必须提交,请高人帮助,郁闷死了~

Answer 2

删除onclick="JavaScript:showHide(this);" 

Answer 3

obj.parentElement.parentElement.parentElement.rows[1].这里获取的是TABLE 第二行