与淘汰赛组件进行通信 [英] Communicating with Knockout components

问题描述

是否可以通过 父视图模型与KnockoutJS组件进行通信?

Is there a way to communicate from the parent viewmodel to a KnockoutJS component?

我有一个包含引导程序模式对话框的组件，用于搜索客户并返回选定的客户.目前，要使该对话框出现，我在组件的params属性中的viewmodel中传递了一个可观察的布尔值.为了使对话框出现，我将其设置为true，这将调用对话框.我还在params中传递了一个回调函数以返回结果.

I have a component that contains a bootstrap modal dialog box, to search for customers and return a selected customer. At present, to make the dialog box appear, I pass an observable boolean from the viewmodel in the component's params attribute. To make the dialog appear I set this to true, which invokes the dialog box. I also pass a callback function in params to return the results.

这里是展示概念的小提琴演示: http://jsfiddle.net/Quango/5bxbsLt6/

Here is a fiddle demo which shows the concept: http://jsfiddle.net/Quango/5bxbsLt6/

传递可观察到的布尔值来调用对话框感觉不对，但这是我唯一可行的解​​决方案.我唯一的另一个想法是使用ko-postbox创建发布/订阅功能.

Passing the observable boolean to invoke the dialog doesn't feel right, but it's the only working solution I have. The only other idea I had was to use ko-postbox to create a publish/subscribe function.

感觉应该有一种方法来调用动作，例如component.Show()吗?

It feels like there should be a way to invoke actions, e.g. component.Show() ?

推荐答案

我认为这里的答案是没有更好的方法.要从父视图模型与组件进行通信，请传递一个可观察的值，然后直接使用该值或订阅组件中的更改.

I think the answer here is that there isn't a better way. To communicate from a parent viewmodel to the component, pass an observable value, and then use that directly or subscribe to changes in the component.

我将在Knockout github项目上提出建议，以考虑某种形式的接口.

I will put a suggestion on the Knockout github project to consider some form of interface.

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