How do get Aurelia to render my view after dynamically adding a custom element to the DOM?

问题

When creating a custom element in the DOM and adding a respective view model which implements bindable from the aurelia-framework, my view renders perfectly.

custom element in DOM as so:

<!-- chatbox.html -->
<template>
...    
    <ul class="chat">
        <answer name="Reah Miyara" nickname="RM" text="Hello World"></answer>
    </ul>
...
    <button class="btn" click.trigger="addCustomElement()">Add</button>
...
</template>

Aurelia's magic rendering results in various children elements associated with the custom element in the DOM, when inspecting from the browser.

The issue arises when I am attempting to dynamically add additional custom elements to the DOM using jQuery like so...

// chatbox.js
addCustomElement() { 
    $('.chat').append('<answer name="Joe Smith" nickname="JS"></answer>');
}

Invoking this method using the button (Aurelia's 'click.trigger') indeed adds the custom element to the DOM, but without the various children elements which allows the custom element to be properly rendered in the view...

How do I properly dynamically add custom elements to the DOM or tell Aurelia to process a custom element which I have added so it renders in my view?

Thanks in advance!

回答1:

I would modify as follows:

//chatbox.js
export class Chatbox {
   answers = [{
      name:'Reah Miyara',
      nickname:'RM'
   }];
   addCustomElement() {
      answers.push({
        name:'Joe Smith',
        nickname: 'JS'
      }];
   }
}

Then in your template, use a repeat.for on the answers property. Aurelia's binding system will ensure that there is an <answer> tag for each element in the answers array.

<!-- chatbox.html -->
<template>
 ...
<ul class="chat">
  <answer repeat.for="answer of answers" name.bind="answer.name" nickname.bind="answer.nickname"></answer>
</ul>
<button class="btn" click.trigger="addCustomElement()">Add</button>
... 
</template>

来源：https://stackoverflow.com/questions/31595103/how-do-get-aurelia-to-render-my-view-after-dynamically-adding-a-custom-element-t

标签

javascript

dom

aurelia

aurelia-binding