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我刚刚开始用KnockoutJS弄湿我的脚。到目前为止,我有以下几点:遇到一些基本的问题KnockoutJS
HTML:
<b>Selected:</b> <span data-bind="text: selectedName" ></span>
<div data-bind="foreach: matches">
<div data-bind="click: $root.SelectMatch" >
<strong data-bind="text: Name" ></strong>
<span data-bind="text: Age"></span>
<span data-bind="text: Citizenship"></span>
</div>
</div>
的Javascript:
function TestViewModel() {
var self = this;
self.matches = ko.observableArray([
{ Name: 'Rodd Chin', Age: '42', Citizenship: 'American' },
{ Name: 'Ben Challinor', Age: '30', Citizenship: 'Russian'},
{ Name: 'Andrew Harris', Age: '35', Citizenship: 'Canadian' }
]);
self.selectedItem = ko.observable();
self.selectedName = ko.observable("[Empty]");
self.SelectMatch = function (match) {
self.selectedItem = match;
self.selectedName = match.Name;
};
}
ko.applyBindings(new TestViewModel());
这一切似乎工作除了的selectedName第一span标签的结合。由于某种原因,永远不会得到更新。我已经尝试将ko.computed()
属性添加到vm,该vm返回self.selectedItem.Name
并绑定到那个,但那也不起作用。
关于我可能做错什么的想法?谢谢您的帮助!
谢谢!我也改变了span标签的绑定,就像'text:selectedItem()。Name'一样 – RHarris 2012-03-06 19:25:32