asp.net-mvc-4 – 使用knockout.js我需要从服务器调用更新我的模

目前我正在进行初始的JSON get调用,这将返回模型,然后我可以将其绑定到视图.然后我再次设置getJSON调用以每10秒进行一次更新,它将执行该函数并获取数据,但屏幕上看不到更新.我已经尝试在每次调用后调用ko.applyBindings,但页面上仍然没有更新,然后在几次调用后它会崩溃浏览器.

我不确定我到底做错了什么.我已经包含了以下代码的相关部分.

JavaScript的：

<script type="text/javascript">
var viewModel;

var update = setInterval(function () {
    $.getJSON(
                "/Home/Get",{},function (model) {
                    viewModel = model;
                    bindViewModel(viewModel);
                });
},10000);

$(document).ready(
    function () {
        $.getJSON(
            "/Home/Get",function (model) {
                viewModel = model;
                bindViewModel(viewModel);
            });
    });


function bindViewModel(viewModel) {
    ko.applyBindings(viewModel);
}
</script>

表格显示模型

<div data-bind="foreach: { data: Events,as: 'evnts' }">
<span data-bind="text: evnts.LastUpdate"></span>
<table id="EventsTable" style="display:inline; float:left;">
    <tbody>
        <tr id="EvntsHeader" data-bind="visible: evnts.IsVisible">
        <td>
            <span data-bind="text: evnts.Name"></span>
        </td>
        <tr>
            <td>
                <table id="MarketsTable">
                    <tbody data-bind="foreach: { data: evnts.Markets,as: 'markets' }">
                        <tr>
                            <td id="MarketHeader">
                                <span data-bind="text: markets.Name"></span>
                                <span data-bind="text: markets.NumberOfRunners"></span>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <table id="SelectionTable">
                                    <tbody data-bind="foreach: { data: markets.Selections,as: 'selections' }">
                                        <tr id="Selections">
                                            <td><span data-bind="text: selections.Number,visible: selections.IsVisible"></span></td>
                                            <td><span data-bind="text: selections.Name,visible: selections.IsVisible"></span></td>
                                            <td><span data-bind="text: selections.CurrentPrice,visible: selections.IsVisible"></span></td>
                                            <td><span data-bind="text: selections.OpeningPrice,visible: selections.IsVisible"></span></td>
                                        </tr>
                                    </tbody>
                                </table>
                            </td>
                        </tr>
                    </tbody>
                </table>
            </td>
        </tr>
    </tbody>
</table>

Controlller – JSON Get

[AcceptVerbs(HttpVerbs.Get)]
    public JsonResult Get()
    {
        var model = new TestModel {LastUpdate = DateTime.Now};

        if (TestConstants.Update == false)
        {
            GetModelFirstTime(model);
            TestConstants.Update = true;
        }
        else
        {
            UpdateModel(model,DateTime.Now);
        }

        return Json(model,JsonRequestBehavior.AllowGet);
    }