'JSON' undefined in RiaServices.Jquery

Question

i tried knockout with RiaService.jQuery

and i make a model with DomainService.

and i want to CRUD . but i got a model size. but i can't Insert, Update and Delete

but i don't know why.

error message is 'JSON' undefined. and encodedParameters = JSON.stringify(parameters);

and this is my code.

=======================================================================

@model MVCTEST.Friend

<script src="@Url.Content("~/Scripts/jquery-1.7.1.js")" type="text/javascript"></script>
<script src="@Url.Content("../../Scripts/ria.js")" type="text/javascript"></script>
<script src="@Url.Content("~/Scripts/knockout.js")" type="text/javascript"></script>
<script src="~/Scripts/knockout.debug.js" type="text/javascript"></script>

<p>Friend Index : <input type="text" data-bind="value:friend.Id" /></p>
<p>Friend Name : <input type="text" data-bind="value:friend.Name" /></p>
<p>Friend Age : <input type="text" data-bind="value:friend.Age" /></p>
<p>Friend Sex : <input type="checkbox" data-bind="checked:friend.Sex" /></p>
<p>Friend Country : <input type="text" data-bind="value:friend.Country" /></p>

<hr />
<input type="button" id="btnLength" value="Length" />
<input type="button" id="btnInsert" value="Insert" />

<hr />
<div id="divLength" />
<div id="divInsert" />

<hr />

<script type="text/javascript">
    var friend = {
        Id: ko.observable(1),
        Name: ko.observable('Lee'),
        Age: ko.observable(26),
        Sex: ko.observable(true),
    Country: ko.observable('Korea')
};
var viewModel = function () {
    this.friend = friend;
};
ko.applyBindings(new viewModel());
</script>

<script type="text/javascript">
    $(document).ready(function () {

        var friends = [];

        var ds = $([friends]).dataSource({
            serviceUrl: "/MVCTEST-DomainService1.svc",
            queryName: "GetFriendSet",
            bufferChanges: true
        }
        );
        ds.refresh();

        $("#btnLength").click(function () {
            $("#divLength").html(friends.length);
        });
        $("#btnInsert").click(function (event) {
            var insertFriend = { Name: friend.Name(), Age: friend.Age(), Sex: friend.Sex(), Country: friend.Country() };
            $.observable(friends).insert(friends.length, insertFriend);
            ds.commitChanges();
        });

    });
</script>

Answer 1

Hi,

check you are using JSON2, if you have already installed DivX software, please disabling Divx addons. and also make sure that your page is rendering in IE8 standards mode. You could refer the following similar post.

http://stackoverflow.com/questions/1801835/bizarre-javascript-json-undefined-error

 

Regards,
Peter

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Answer 2

sorry. i can't understand

how i can check JSON2? and what is that DivX software?