extract data from json - json

Question

I have a json data coming from wcf servicein jquery like this
GetBedTypeList1Result1 is function in wcf
{
"GetBedTypeList1Result":[
{"Code":23,"CompanyCode":null,"Decode":"1 Class New Born Bed","DivisionCode":0,"LocationCode":0,"admDueDepAmt":0,"bedTypeCode":0,"caseTypeCode":0,"caseTypeDecode":null,"ptnClassCode":0,"ptnClassDecode":null,"rsvDueDepAmt":0},
{"Code":22,"CompanyCode":null,"Decode":"1st Class Bed","DivisionCode":0,"LocationCode":0,"admDueDepAmt":0,"bedTypeCode":0,"caseTypeCode":0,"caseTypeDecode":null,"ptnClassCode":0,"ptnClassDecode":null,"rsvDueDepAmt":0},
{"Code":5,"CompanyCode":null,"Decode":"Classique Bed","DivisionCode":0,"LocationCode":0,"admDueDepAmt":0,"bedTypeCode":0,"caseTypeCode":0,"caseTypeDecode":null,"ptnClassCode":0,"ptnClassDecode":null,"rsvDueDepAmt":0}
],
"strErrMsg":"Y",
"chrErrFlg":"c"
}
I am calling service like below
function CallWcfService() {
//alert("CallWcfServicexxxx");
jQuery.ajax
(
{
type: Type,
url: Url,
data: parameters,
contentType: ContentType, // content type sent to server
dataType: DataType, //Expected data format from server
cache: "false",
crossDomain: true, //Same result if i remove this line
processdata: ProcessData, //True or False
success: function (msg)
{
ServiceSucceeded(msg);
},
error: ServiceFailed// When Service call fails
}
);
}
function callService()
{
DataType = "json";
Type = "GET";
var par = 4;
parameters = null;
Url = "http://192.168.2.42/CWSERVERWCF/bedtypemasterService.svc/GetBedTypeList?callback=?";
parameters = "{'strErrMsg':'1'},{'chrErrFlg':'A'},{'pcompanycode':'0'},{'pdiv':'1'},{'ploc':'1'}";
// alert(parameters);
ContentType = "application/json; charset=utf-8";
ProcessData = true;
//alert("sssssasasadsds");
CallWcfService();
}
I am trying to fetch data but not getting lke below
function ServiceSucceeded(result)
{
if (DataType == "json")
{
var obj = jQuery.parseJSON(JSON.stringify(JSON.stringify(result)));
for (var x = 0; x < obj.length; x++)
{
}
}
}
In obj.length count of characters is coming and jQuery.parseJSON(result) is not working
Please help

Answer 1

If the result is json there is no need to parse it in this way. jQuery.ajax will return a javascript object if the datatype is set to json.
So in your ServiceSucceeded function you may operate on the result variable directly. If you are trying to iterate over the bed types change your for loop to something like this:
for (var i = 0; i < result.GetBedTypeList1Result.length; i++) {
// ...do stuff
// var bed = result.GetBedTypeList1Result[i]]
}

Answer 2

Try using JSON.parse(result) instead of: var obj = jQuery.parseJSON(JSON.stringify(JSON.stringify(result)));
Also, since you've mentioned the dataType as 'json' in your $.ajax call, your response should already be in JSON format with no parsing required.