asp.net - how to get value hidden in C# when it is set by jquery after postback -

i nwe jquery.how value of hidden field after post in csharp. when ever post occures value dissapear. hidden field.

<asp:hiddenfield id="hid_basicsalary" runat="server" /> 

this jquery code assign data after succsesful execution of ajax web service.

var basicsalary = $('hid_basicsalary');  basicsalary.val(data["basicsalary"]); 

this c sharp code when click on button postback occurs afte node data.

protected void btn_pincrementsave_click(object sender, eventargs e)     {         try         {             txbx_incrementamount.text = hid_basicsalary.value.tostring();           }         catch (exception ex)         {              utility.msg_error(this.master, ex.message);         }     } 

please me

in jquery use selector select elements, , have put . class , # id selector please put # or . before element.

in case, $('#hid_basicsalary'); or $('.hid_basicsalary'); answer.