Page Load Issue

if you use asp.net hidden field set client mode static of hidden field property.

 

 

$( document ).ready(

function() {

$("#HiddenFieldId").val("1");

});

or

$(function() {

$("#HiddenFieldId").val("1");

});

Run javascript function on document.ready in javascript and store the value in hidden field.

$(document).ready(function() {  
document.getElementById("HiddenFieldId").value = "1";

});

OR

$(document).ready(function() {  
document.getElementById('<%= HiddenFieldID.ClientID %>');
});