javascript - Unable to pass data from jQuery ajax to Api Controller -


i don't know went wrong - using fiddler when pass data controller string able receive data throw ajax unable data - please 

$("#rollnumber").change(function () {    var data = $.trim($(this).val());     $.ajax({         method: "post",         url: "api/home/postdetails",         data: { rollnumber: data },         datatype: "json",         contenttype: "application/json",         success: function (data) {             $("#firstname").val(data.firstname);             $("#lastname").val(data.lastname);         }     }) });   [httppost]     public httpresponsemessage postdetails([frombody] string rollnumber)     {         try         {             if(rollnumber != null)             {                 businesslogic business = new businesslogic();                 modelclass model = business.getstudent(convert.toint32(rollnumber));                 return request.createresponse(httpstatuscode.ok, model);             }             return request.createresponse(httpstatuscode.notfound, "there no user in specfic roll number " + rollnumber);         }         catch(exception ex)         {             return request.createerrorresponse(httpstatuscode.badrequest, ex);         }      }

you can try this:

remove frombody method.


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