c# - How to set Textbox's Text as an querystring argument for LinkButton without having codebhind file? -

i having user control file without codebehind file in dotnentnuke.

in have put form in have 1 textbox , 1 linkbutton.

i want pass textbox's value when press button querystring access in page.

for have written following code not work.

 <asp:textbox id="txtemail" runat="server" class="txtbox" placeholder="enter email here"></asp:textbox>  <asp:linkbutton id="linkbutton1" class="lbsubscrb" runat="server"                                  postbackurl="~/portals/_default/skins/gravity/dummy.aspx?add=<% txtemail.text %>"                                  forecolor="white">subscribe</asp:linkbutton> 

all answers appreciated...

it sounds need own custom module, instead of trying take existing module, without source code, , make different?

that being said, if want take existing module , make that, jquery going method of choice.

basically wan hijack click event button , send elsewhere, along lines of following code. wrote of last night module working on (newsletter subscriptions, way) have removed of logic make simpler trying do

edit: replaced txtbox class below match textbox's class

<script language="javascript" type="text/javascript">     /*globals jquery, window, sys */     (function ($, sys) {         $(document).ready(function () {              var originalhref = $('.lbsubscrb a').attr('href');               $('.lbsubscrb a').removeattr("href");             $('.txtbox').focus(function () {                 if($('.txtbox').val().indexof('@')<1)                     $('.txtbox').val('');             });             $('.txtbox').bind("keypress", function (e) {                  if (e.keycode == 13) {                     $('.lbsubscrb a').click();                 }             });              $('.lbsubscrb a').click(function () {                 //check if hit enter in textbox , submit form                 if (validateemail($('.txtbox').val())) {                      //                     //todo: add jquery redirect call here.                     //                        //uncomment line use original submit functionality                     //eval(originalhref.replace('javascript:', ''));                     //if postback wanted uncomment next line                     //$('.lbsubscrb a').removeattr("href");                 } else {                     alert('something wrong email');                 }             });         });     }(jquery, window.sys));      function validateemail(email) {          var re = /^(([^<>()[\]\\.,;:\s@\"]+(\.[^<>()[\]\\.,;:\s@\"]+)*)|(\".+\"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-za-z\-0-9]+\.)+[a-za-z]{2,}))$/;         return re.test(email);     }  </script>