html - InnerHtml of div is always empty -

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i have next html :

<div class="output">     <div id="divinternet" runat="server" class="issue">         <!--this message shows regardless of choice-->         <p>             if operate service connects internet , intend collect any...         </p>     </div> </div>

on server side try innerhtml of div id divinternet:

var q1text = divinternet.innerhtml;

but q1text empty.

i try add attribute runat="server" inner p throws exception innerhtml must literal.

expected result - want <p> , content:

<p>     if operate service connects internet , intend collect any... </p>

what have missed?

upd: didn't mention on start, think important.

more detailer content of div :

<p>     if operate service connects internet , intend collect      <a href= "<%=project.core.common.publisherconfigurationmanager.navigation%>privacy/faq.aspx#16" target="_blank" class="dotlink">personal information</a>... </p>

so there tag contains data config.

try 

var q1text = new stringbuilder();     divinternet.rendercontrol(new htmltextwriter(new stringwriter(q1text)));

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