c# - HTTP 400 Bad Request - CORS enabled WCF Service -

i trying use cors on wcf cross domain calls service. have of things working, when try call function gives me error -http 400 bad request

i used fiddler capture error , says this

when tried find solutions, saw people suggesting use bodystyle=webmessagebodystyle.bare. tried , service giving errors because have more 1 parameters.

[operationcontract]         [webinvoke(method = "post",                     bodystyle=webmessagebodystyle.wrapped,                     requestformat=webmessageformat.json,                     responseformat=webmessageformat.json,                     uritemplate = "/getdata")]         //[webget(bodystyle = webmessagebodystyle.bare, requestformat = webmessageformat.json, responseformat = webmessageformat.json, uritemplate = "/getdata/{value}/")]         string getdata(string value, string val2); 

i not sure how solve problem. appreciated.

if need @ more, config please let me know , can share it.

service call:

var datav = "{value : 4, val2 : 5}";             var datasent = json.stringify(datav);     $.ajax({             type: "post",             datatype: 'json',             contenttype: "application/json",             data: datasent,             url: purl,             success: function (data) {             alert('success');             },             error: function(xhr, status, error) {               alert(xhr.responsetext);             }             }); 

first of all, not recommended use post if service returning data. use get instead. still, if going use post, here proper method use in wcf.

[operationcontract] [webinvoke(method = "post",   bodystyle=webmessagebodystyle.bare,   requestformat=webmessageformat.json,   responseformat=webmessageformat.json,   uritemplate = "/getdata")]     string getdata(myvalues values); 

and here myvalues class.

[datacontract] public class myvalues {    [datamember]    public string value1{get; set;}     [datamember]    public string value2{get; set;}     public override string tostring()    {       javascriptserializer js = new javascriptserializer(); // available in   system.web.script.serialization;                  return js.serialize(this);    } } 

note have written, tostring() method in myvalues class. because can format of json send json call. more details here.

when calling ajax, need specify charset well.

contenttype: "application/json; charset=utf-8", 

check now! make sure sending right json in request. tostring() method return required json format service accept.