如何使用angular2中的组件名称动态加载组件? [英] How to load component dynamically using component name in angular2?

问题描述

我目前正在使用以下代码在应用程序中动态加载角度分量.

I am currently loading angular components dynamically in my application using following code.

export class WizardTabContentContainer {
  @ViewChild('target', { read: ViewContainerRef }) target: any;
  @Input() TabContent: any | string;
  cmpRef: ComponentRef<any>;
  private isViewInitialized: boolean = false;

  constructor(private componentFactoryResolver: ComponentFactoryResolver,   private compiler: Compiler) {
  }

  updateComponent() {
     if (!this.isViewInitialized) {
       return;
     }
     if (this.cmpRef) {
       this.cmpRef.destroy();
     }
     let factory = this.componentFactoryResolver.resolveComponentFactory(this.TabContent);

     this.cmpRef = this.target.createComponent(factory);
   }
}

在这里resolveComponentFactory函数接受组件类型.我的问题是，有什么办法可以使用组件名称字符串加载组件，例如，我将组件定义为

Here resolveComponentFactory function accepts component type. My question is, Is there any way I can load component using component name string e.g I have component defined as

export class MyComponent{
}

如何使用组件名称字符串"MyComponent"而不是类型添加上述组件?

How can I add above component using component name string "MyComponent" instead of type?

推荐答案

也许可行

import { Type } from '@angular/core';

@Input() comp: string;
...
const factories = Array.from(this.resolver['_factories'].keys());
const factoryClass = <Type<any>>factories.find((x: any) => x.name === this.comp);
const factory = this.resolver.resolveComponentFactory(factoryClass);
const compRef = this.vcRef.createComponent(factory);

其中this.comp是组件的字符串名称，例如"MyComponent"

where this.comp is a string name of your Component like "MyComponent"

柱塞示例

Plunker Example

要进行缩小处理，请参见

To do it working with minification see

• ng2-动态创建基于在模板上

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