将道具动态传递给VueJS中的动态组件 [英] Passing props dynamically to dynamic component in VueJS

问题描述

我有一个动态视图：

<div id="myview">
  <div :is="currentComponent"></div>
</div>

带有关联的Vue实例：

with an associated Vue instance:

new Vue ({
  data: function () {
    return {
      currentComponent: 'myComponent',
    }
  },
}).$mount('#myview');

这允许我动态更改我的组件。

This allows me to change my component dynamically.

就我而言，我有三个不同的组件： myComponent ， myComponent1 和 myComponent2 。我在它们之间切换如下：

In my case, I have three different components: myComponent, myComponent1, and myComponent2. And I switch between them like this:

Vue.component('myComponent', {
  template: "<button @click=\"$parent.currentComponent = 'myComponent1'\"></button>"
}

现在，我想将道具传递给 myComponent1 。

Now, I'd like to pass props to myComponent1.

当我将组件类型更改为 myComponent1 时，如何传递这些道具？

How can I pass these props when I change the component type to myComponent1?

推荐答案

要动态传递道具，您可以将 v-bind 指令添加到动态组件中，并传递包含道具名称和值的对象：

To pass props dynamically, you can add the v-bind directive to your dynamic component and pass an object containing your prop names and values:

所以你的动态组件看起来像这样：

So your dynamic component would look like this:

<component :is="currentComponent" v-bind="currentProperties"></component>

在你的Vue实例中， currentProperties 可以根据当前组件进行更改：

And in your Vue instance, currentProperties can change based on the current component:

data: function () {
  return {
    currentComponent: 'myComponent',
  }
},
computed: {
  currentProperties: function() {
    if (this.currentComponent === 'myComponent') {
      return { foo: 'bar' }
    }
  }
}   

现在，当 currentComponent 是 myComponent 时，它将会有 foo 属性等于'bar'。如果不是，则不会传递任何属性。

So now, when the currentComponent is myComponent, it will have a foo property equal to 'bar'. And when it isn't, no properties will be passed.

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