c# - Ajax is not calling the webmethod -


i'm trying loadresources function work have put behind call of button - function called ajax fail (i "loading of engineers failed!" alert) , can't work out why

loadresources = function (instructionid) {      var objresource = {};      objresource.instructionid = instructionid;     objresource.ignorepostcode = true;     objresource.pageindex = 1;     objresource.pagesize = 10;     objresource.totalrows = 0;      var requestresource = $.ajax({         type: "post",         url: "newjob.aspx/getresourcesdayshift",         data: json.stringify(objresource),         contenttype: "application/json; charset=utf-8",         datatype: "json"     });     requestresource.done(function (data) {          alert(data);      });     requestresource.fail(function () {         //$.unblockui();         alert('loading of engineers failed!');     }); }

this method trying call:

   [webmethod]     public static string getresourcesdayshift(guid instructionid, bool ignorepostcode, int pageindex, int pagesize, ref int totalrows)     {         return "blah";      }

when call method next error message

message: "cannot convert object of type 'system.int32' type 'system.int32&'"

this problem ref parameters of method.

if want return data, can next change

[webmethod] public static object getresourcesdayshift(guid instructionid, bool ignorepostcode, int pageindex, int pagesize, int totalrows)//return ref keyword {     return new { value = "blah", totalrows=totalrows+1 };  }

and on client side 

requestresource.done(function (data) {      console.log(data.d); //object {value: "blah", totalrows: 1}  });

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