asp.net - Trouble with ajax POST call to WCF service -

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i calling wcf service ajax , can work request not post request. so:

    [operationcontract]     [webinvoke(method = "get", requestformat = webmessageformat.json, responseformat = webmessageformat.json)]     public userobject getuser(string name)     {         // add operation implementation here         var uo = new userobject() { custclass = "guest", fname = "chris", email = "chris@something", ismobile = false };         uo.fname = name;         return uo;     }

and 

var json = { "name": "test" };  $.ajax({ //get user name , customer class     type: "get",     url: "writinganalysisservice.svc/getuser",     data: json,     processdata: true,     contenttype: "application/json",     timeout: 10000,      datatype: "json",      cache: false,     success: function (data) { //get user name , customer class         customerclass = data.d.custclass;         ffname = data.d.fname;     } });

works but:

    [operationcontract]     [webinvoke(method = "post", requestformat = webmessageformat.json, responseformat = webmessageformat.json)]     public userobject getuser(string name)     {         // add operation implementation here         var uo = new userobject() { custclass = "guest", fname = "chris", email = "chris@something", ismobile = false };         uo.fname = name;         return uo;     }

and 

$.ajax({ //get user name , customer class     type: "post",     url: "writinganalysisservice.svc/getuser",     data: json,     processdata: true,     contenttype: "application/json",     timeout: 10000,      datatype: "json",      cache: false,     success: function (data) { //get user name , customer class         customerclass = data.d.custclass;         ffname = data.d.fname;     } });

doesn't. missing simple? i'm tearing hair out here. thanks

use 

bodystyle = webmessagebodystyle.wrappedrequest

for webinvokeattribute


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