如何在不单击菜单项的情况下显示菜单项的内容

Question

我想在不点击第一个菜单项的情况下显示它的内容，使其成为打开应用程序时显示的默认内容。我想的都试过了。Console.log显示"；selectedView"可观察到类似于"；查看｛title："事件列表"，templateName："事件清单"｝；所以我试着将它设置为这个值，但它仍然有效。

<div class="inServMenu" data-bind="foreach: views">
    <a href="#" class="inServMenuItem" data-bind="text: title, click: $root.selectedView"></a>
</div>
<div data-bind="with: selectedView">
    <div data-bind="template: { name: templateName }"></div>
</div>
<script id="EventList" type="text/html">
 <span>"Here's the Event List..."</span>
</script>
<script id="RosterList" type="text/html">
 <span>"Here's the Roster List..."</span>
</script> var View = function (title, templateName) {
    this.title = title;
    this.templateName = templateName;
};
// VIEWMODEL
var viewModel = {
    selectedView: ko.observable(),
    views: ko.observableArray([
        new View('Event List', 'EventList'),
        new View('Roster List', 'RosterList')
    ]),
}
ko.applyBindings(viewModel);```
[Here's a jsfiddle][1]

  [1]: http://jsfiddle.net/jjfrick/hmfubkcr/18/

Answer 1

您需要稍微更改视图模型构造函数，以便可以引用它：

function ViewModel () {
    var vm = this;
    vm.views = ko.observableArray([
        new View('Event List', 'EventList'),
        new View('Roster List', 'RosterList')
    ]);
    vm.selectedView = ko.observable(vm.views()[0])
}
ko.applyBindings(new ViewModel());