c# - Adding default value to dropdown in jquery ajax call -


i have cascading dropdowns. on selection of 1 dropdown, dropdown binds using ajax. works want second dropdown should contain default text , value ('select me'). how can add default value. code.

   function bindcities(drpstate) {         var stateid = $(drpstate).val();         $.ajax({             url: '/register.aspx/bindcities',             type: "post",             async: false,             contenttype: "application/json; charset=utf-8",             datatype: "json",             data: '{"id":"' + stateid + '"}',             success: function (result) {                 var drpcity = $('.drpcity');                 drpcity.empty();                 $.each(result.d, function () {                     drpcity.append(                         $('<option/>', {                             value: this.id,                             text: this.name                          })                     );                 });              },             error: function (xhr, status) {                 alert(status + " - " + xhr.responsetext);             }         });     }

html:

  <asp:dropdownlist runat="server" cssclass="drpstate" onchange="bindcities(this)" id="drpdwnstate">                             <asp:listitem text="select state" value="0"></asp:listitem>                         </asp:dropdownlist>   <asp:dropdownlist runat="server" cssclass="drpcity" id="drpdwncity">                             <asp:listitem text="select city" value="0"></asp:listitem>                         </asp:dropdownlist>

server side code:

 [webmethod]     public static list<countrystate> bindcities(int id)     {         ekbnmanager em = new ekbnmanager();         list<city> cities = em.getcitybystateid(id);          list<countrystate> countrystate = new list<countrystate>();         foreach (var item in cities)         {             countrystate cnt = new countrystate();             cnt.name = item.name;             cnt.id = item.id;             countrystate.add(cnt);         }          return countrystate;     }

in success function this:

    success: function (result) {                     var drpcity = $('.drpcity');                     drpcity.empty();                      drpcity.append(                             $('<option/>', {                                 value: -1,                                 text: please select 1                              })                     $.each(result.d, function () {                         drpcity.append(                             $('<option/>', {                                 value: this.id,                                 text: this.name                              })                         );                     });

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