javascript - JQuery Ajax Success not being triggered -

i'm not sure why ajax success isn't being triggered/called. controller called , code executed fine. i'm not returning anything, method void! need return (actionresult/jsonresult/etc) success trigger?

here controller code.

public void deleteevent(string eventid) {     diaryeventservice.deletediaryevent(eventid); } 

here ajax call.

$.ajax({    url: '/managespaces/deleteevent',    datatype: 'json',    data: {      eventid: eventid,    },    success: function() {      //var obj = json.parse(doc);        var mycalendar = $('#fullcalendar');      mycalendar.fullcalendar();      mycalendar.fullcalendar('removeevents', eventid);      $("#eventdetails").collapse('toggle');    }  });

yes, need return jsonresult:

[httppost] public jsonresult deleteevent(string eventid) {     diaryeventservice.deletediaryevent(eventid);     return json("{status:"ok"}"); } 

since changing back-end data, set post:

 $.ajax({     url: '/managespaces/deleteevent',     method: 'post',     datatype: 'json',     data: {      eventid: eventid,     },     success: function(response) {     if(response.status=="ok"){      var mycalendar = $('#fullcalendar');      mycalendar.fullcalendar();      mycalendar.fullcalendar('removeevents', eventid);      $("#eventdetails").collapse('toggle');     }else{       console.log("error occured")     }    }  });