如何通过单击修改对象
我正在尝试通过单击修改对象。这就是我所拥有的。
<form>
<ul class="tabs" data-tabs="tabs" data-bind="template: 'lineTemplate'"></ul>
<div class="pill-content" data-bind="template: 'lineDivTemplate'" ></div>
</form>
<script id="lineTemplate" type="text/html">
{{each(i, line) lines()}}
<li><a data-bind="click: function() { viewModel.setActive(line) }, attr : { href : '#line' + id() }"><span style="font-size: 15px;" data-bind="text : model"/></a></li>
{{/each}}
</script>
var viewModel = {
lines: ko.observableArray([]),
setActive : function(line) {
**//I need to modify this object**
line.activeTab = true;
}
};
$.getJSON("/json/all/lines", { customer_id : customer_id } , function(data) {
ko.mapping.fromJS(data, null, viewModel.lines);
});
ko.applyBindings(viewModel);
基本上,当用户单击该选项卡时,我需要它来更新模型(最终更新数据库),使其成为当前活动的选项卡。我的第一种方法是删除对象,修改它,然后将其推回数组,但是推送将其添加到数组的末尾,这是我不想要的。感谢您的任何帮助。
I'm trying to modify an object on a click. Here's what I have.
<form>
<ul class="tabs" data-tabs="tabs" data-bind="template: 'lineTemplate'"></ul>
<div class="pill-content" data-bind="template: 'lineDivTemplate'" ></div>
</form>
<script id="lineTemplate" type="text/html">
{{each(i, line) lines()}}
<li><a data-bind="click: function() { viewModel.setActive(line) }, attr : { href : '#line' + id() }"><span style="font-size: 15px;" data-bind="text : model"/></a></li>
{{/each}}
</script>
var viewModel = {
lines: ko.observableArray([]),
setActive : function(line) {
**//I need to modify this object**
line.activeTab = true;
}
};
$.getJSON("/json/all/lines", { customer_id : customer_id } , function(data) {
ko.mapping.fromJS(data, null, viewModel.lines);
});
ko.applyBindings(viewModel);
Basically when the user clicks the tab I need it to update the model(and eventually the database) that it is the currently active tab. The first way I had was the delete the object modify it and then push it back to the array, but pushing adds it to the end of the array, which I don't want. Thanks for any help.
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通常,您会维护诸如“selectedTab”或“activeTab”之类的可观察对象。
然后,您可以对
activeTab
进行任何您想要的绑定。在 KO 1.3 中,你可以这样做:在此之前你可以这样做:
Typically, you would mantain something like a "selectedTab" or "activeTab" observable.
Then, you can do any binding that you want against
activeTab
. In KO 1.3, you could do:Prior to that you could do: