c# - button not triggering as required -

my button not automatically triggering, works when click manually,

   <script type="text/javascript">      $(document).ready(function() {        $('#yes').click(function() {              $.unblockui();               $('<%= hiddenbutton.clientid %>').trigger('click');  // not working             __dopostback('<%=hiddenbutton.clientid %>', '');     // not working 

button code given below. both trigger , dopostback didn't worked @ all

<asp:updatepanel id="updatepanel1" runat="server" updatemode="conditional" childrenastriggers="true">     <contenttemplate>     <asp:textbox id="hiddenfield1" runat="server" />         <asp:button id="hiddenbutton" text="click me" runat="server" onclick="deleting_click" /> 

and added trigger as,

   <triggers>      <asp:asyncpostbacktrigger controlid="hiddenbutton" eventname="click" />   </triggers> 

i know can check value in page load method , call method there want using java script. can somone direct me in right direction please

try :

$('#<%= hiddenbutton.clientid %>').trigger('click'); 

you forgot hashtag indicating you're targetting id...