knockout.js：更新绑定？ [英] knockout.js: update bindings?

问题描述

当我在ko.applyBindings（）之后将任何新元素注入到DOM中时被召唤，然后淘汰赛将无法识别这些新元素。
我可以理解为什么会发生这种情况 - 他们只是没有被淘汰索引。

when I inject any new elements into the DOM after ko.applyBindings(); was called, then knockout won't recognize these new elements. I can understand why this is happening - they are just not indexed by knockout.

所以，起初我以为只要拨打ko就可以解决这个问题。在添加我的新元素之后再次applyBindings（）然后我意识到，对于你做的每个ko.applyBindings（）调用，相应的事件会多次被触发。因此，在应用五次后，点击：绑定将被触发五次，因此这不是一个理想的解决方案;）

So, at first I thought this would be solved by just calling ko.applyBindings() again, after adding my new elements, BUT then I realized that for every ko.applyBindings() call you make, the according events get fired multiple times. So after applying five times, a click: binding will be fired five times, so this is not a desireable solution ;)

是否有类似ko.updateBindings（）或别的什么，告诉敲门，好......更新元素绑定？

Is there anything like ko.updateBindings() or something else, to tell knockout to, well... update the element bindings?

问候，
Chris

greetings, Chris

推荐答案

每次调用 ko.applyBindings 时，都会检查整个DOM是否存在绑定。因此，如果您多次执行此操作，您将获得每个元素的多个绑定。如果您只想绑定一个新的DOM元素，可以将此元素作为参数传递给 applyBindings 函数：

Each time you invoke ko.applyBindings the entire DOM is inspected for bindings. As a result you will get multiple bindings for each element if you do this more than once. If you just want to bind a new DOM element you can pass this element as a parameter to the applyBindings function:

ko.applyBindings(viewModelA, document.getElementById("newElement"));

请参阅此相关问题：

< a href =https://stackoverflow.com/questions/7342814/knockoutjs-ko-applybindings-to-partial-view>你能调用ko.applyBindings绑定部分视图吗？

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