c# - Export Listview to Excel (troubleshoot) -


i working on web application , need able export listview excel. listview bound (i can see data), export function below isn't working. function seems tripping on <asp:linkbutton> , <asp:imagebutton>. aware of way around this? 

public void exportintoexcel(listview lvexport, string header, string filename) {     try     {         system.web.httpcontext.current.response.clear();         system.web.httpcontext.current.response.contenttype = "application/vnd.ms-excel";         system.web.httpcontext.current.response.addheader("content-disposition", "attachment;filename=" + filename + ".xls");         system.web.httpcontext.current.response.charset = "";         system.web.httpcontext.current.response.cache.setcacheability(httpcacheability.nocache);         stringwriter stringwrite = new stringwriter();         stringwrite.write(header);         stringwrite.writeline();         htmltextwriter htmlwrite = new htmltextwriter(stringwrite);         htmlform frm = new htmlform();         lvexport.parent.controls.add(frm);         frm.controls.add(lvexport);         frm.rendercontrol(htmlwrite);         system.web.httpcontext.current.response.write(stringwrite.tostring());     }     catch (exception ex)     {     }         {         system.web.httpcontext.current.response.end();     } }  protected void export_click(object sender, eventargs e) {     if (paidlv.visible == true)     {         exportintoexcel(paidlv, "income summary", "incomesummary");     } }

update: here listview in entirety can see <asp:linkbutton>s , <asp:imagebutton>s.

<asp:listview id="paidlv" runat="server" onpagepropertieschanged="paidlv_pagepropertieschanged" ondatabound="paidlv_databound" onsorting="paidlv_sorting" visible="true"> <layouttemplate>     <table class="detail">         <tr>             <th>                 <asp:linkbutton id="lnkdate" runat="server" commandname="sort" commandargument="pmtpaydate1">date</asp:linkbutton>                 <asp:image runat="server" id="sortrevimage5" imageurl="~/img/arrows.png" visible="false" />             </th>             <th>                 <asp:linkbutton id="lnktname" runat="server" commandname="sort" commandargument="tname">transaction name</asp:linkbutton>                 <asp:image runat="server" id="sortrevimage2" imageurl="~/img/arrows.png" visible="false" />             </th>             <th>                 <asp:linkbutton id="lnkcname" runat="server" commandname="sort" commandargument="cname">client name</asp:linkbutton>                 <asp:image runat="server" id="sortrevimage1" imageurl="~/img/arrows.png" visible="false" />             </th>             <th>                 <asp:linkbutton id="lnkhalf" runat="server" commandname="sort" commandargument="pmtdesc1">portion</asp:linkbutton>                 <asp:image runat="server" id="sortrevimage3" imageurl="~/img/arrows.png" visible="false" />             </th>             <th>                 <asp:linkbutton id="lnkamt" runat="server" commandname="sort" commandargument="pmtamt">amount</asp:linkbutton>                 <asp:image runat="server" id="sortrevimage4" imageurl="~/img/arrows.png" visible="false" />             </th>             <th>delete</th>         </tr>         <tr id="itemplaceholder" runat="server"></tr>     </table>     <div class="pager">         <asp:datapager id="paidpager" runat="server" pagesize="20" pagedcontrolid="paidlv">             <fields>                 <asp:nextpreviouspagerfield shownextpagebutton="false" buttoncssclass="previousnextlink" />                 <asp:numericpagerfield buttoncount="10" buttontype="link" numericbuttoncssclass="numericlink" />                 <asp:nextpreviouspagerfield showpreviouspagebutton="false" buttoncssclass="previousnextlink" />             </fields>         </asp:datapager>     </div> </layouttemplate> <itemtemplate>     <tr class="altrow rowcolor">         <td class="valigntop" onclick="donav('<%# eval("transactionid","bookdeal.aspx?tid={0}") %>');">             <asp:label runat="server" id="lbldate"><%#eval("pmtdate", "{0:d}") %></asp:label>         </td>         <td class="valigntop" onclick="donav('<%# eval("transactionid","bookdeal.aspx?tid={0}") %>');">             <asp:label runat="server" id="lbltname"><%#eval("tname") %></asp:label>         </td>         <td class="valigntop" onclick="donav('<%# eval("transactionid","bookdeal.aspx?tid={0}") %>');">             <asp:label runat="server" id="lblcname"><%#eval("cname") %></asp:label>         </td>         <td class="valigntop" onclick="donav('<%# eval("transactionid","bookdeal.aspx?tid={0}") %>');">             <asp:label runat="server" id="lblhalf"><%#eval("half").tostring() == "1" ? "first" : eval("half").tostring() == "2" ? "second" : "full" %></asp:label>         </td>         <td class="valigntop" onclick="donav('<%# eval("transactionid","bookdeal.aspx?tid={0}") %>');">             <asp:label runat="server" id="lblamt"><%#eval("pmtamt", "{0:c}") %></asp:label>         </td>         <td>             <asp:imagebutton runat="server" id="btndelete" imageurl="~/img/delete.png" onclick="btndelete_click" postbackurl="~/transaction.aspx" cssclass="deletebutton" commandargument='<%#eval("transactionid") %>' />         </td>         <asp:hiddenfield runat="server" id="lblrevid" value='<%#eval("transactionid") %>' />     </tr> </itemtemplate> <alternatingitemtemplate>     <tr class="rowcolor">         <td class="valigntop" onclick="donav('<%# eval("transactionid","bookdeal.aspx?tid={0}") %>');">             <asp:label runat="server" id="lbldate"><%#eval("pmtdate", "{0:d}") %></asp:label>         </td>         <td class="valigntop" onclick="donav('<%# eval("transactionid","bookdeal.aspx?tid={0}") %>');">             <asp:label runat="server" id="lbltname"><%#eval("tname") %></asp:label>         </td>         <td class="valigntop" onclick="donav('<%# eval("transactionid","bookdeal.aspx?tid={0}") %>');">             <asp:label runat="server" id="lblcname"><%#eval("cname") %></asp:label>         </td>         <td class="valigntop" onclick="donav('<%# eval("transactionid","bookdeal.aspx?tid={0}") %>');">             <asp:label runat="server" id="lblhalf"><%#eval("half").tostring() == "1" ? "first" : eval("half").tostring() == "2" ? "second" : "full" %></asp:label>         </td>         <td class="valigntop" onclick="donav('<%# eval("transactionid","bookdeal.aspx?tid={0}") %>');">             <asp:label runat="server" id="lblamt"><%#eval("pmtamt", "{0:c}") %></asp:label>         </td>         <td>             <asp:imagebutton runat="server" id="btndelete" imageurl="~/img/delete.png" onclick="btndelete_click" postbackurl="~/transaction.aspx" cssclass="deletebutton" commandargument='<%#eval("transactionid") %>' />         </td>         <asp:hiddenfield runat="server" id="lblrevid" value='<%#eval("transactionid") %>' />     </tr> </alternatingitemtemplate> <emptydatatemplate>             <table id="empty">                 <tr>                     <td id="tdempty">                         <br />                         sorry, no data found                     </td>                 </tr>             </table> </emptydatatemplate> </asp:listview>

you try data 

private void datatabletoexcel(datatable datatable) {     stringwriter writer = new stringwriter();     htmltextwriter htmlwriter = new htmltextwriter(writer);     gridview gridview = new gridview();     gridview.datasource = datatable;     gridview.autogeneratecolumns = true;     gridview.databind();     gridview.rendercontrol(htmlwriter);     htmlwriter.close();      response.clear();     response.addheader("content-disposition", "attachment;filename=filename.xls");     response.charset = "";     response.write(writer.tostring());     response.end(); }

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