按照以下示例:
How can I use/create dynamic template to compile dynamic Component with Angular 2.0?
我开发了自己的模板生成器,它直接从变量中获取HTML内容。 这里是: http://plnkr.co/edit/2Sv1vp?p=preview
现在,我的问题是......如果模板内容必须与组件交互,例如在点击时执行的功能......我该怎么做?
这是我的app.component.ts
import { Component } from '@angular/core';
@Component({
selector: 'my-app',
template: `
<div>
<h2>An app with DYNAMIC content</h2>
<hr />
<dynamic-detail [tmpl]="tmpl1" [entity]="entity"></dynamic-detail>
<dynamic-detail [tmpl]="tmpl2" [entity]="entity"></dynamic-detail>
</div>`,
})
export class AppComponent {
private tmpl: string;
private entity: any;
constructor() {
this.entity = {
code: "ABC123",
description: "A description of this Entity",
nome: "Bea"
};
this.tmpl1 = '<h2>Sono {{entity.nome}}, il primo template</h2>';
this.tmpl2 = '<a (click)="printSomething()">Sono il secondo template</a>';
}
printSomething() {
console.log("Hello World");
}
}
当我尝试点击&#34; Sono il secondo template&#34;时,它应该执行printSomething()
函数,但我得到了这个错误:
Error in ./CustomDynamicComponent class CustomDynamicComponent - inline template:0:0 caused by: self.context.printSomething is not a function
答案 0 :(得分:0)
问题正如Angular所说; printSomething在动态创建的组件中不存在。如果我们在动态创建的组件中声明一个函数,我们就可以调用它:
<强> app.component.ts 强>
this.tmpl2 = '<a (click)="linkClicked()">Sono il secondo template</a>';
<强> type.builder.ts 强>
protected createNewComponent(tmpl: string) {
@Component({
selector: 'dynamic-component',
template: tmpl,
})
class CustomDynamicComponent implements IHaveDynamicData {
@Input() public entity: any;
linkClicked() {
console.log('yay!');
}
};
// a component for this particular template
return CustomDynamicComponent;
}
如果要在app.component.ts中调用方法,则需要在CustomDynamicComponent的新@Input()属性中传递对它的引用。