Angular2，如何将变量传递给克隆的模板 [英] Angular2, how to pass a variable to a template that is cloned
问题描述
在 Angular2 中，我有一个模板代码，每当用户单击按钮时我都会克隆它，就像这里回答的一样如何动态添加angular2中的一个克隆节点(相当于cloneNode)
我试图向它传递一个变量，但它不起作用.怎么了?
import {Component, NgModule, ViewChild, ViewContainerRef} from '@angular/core'从@angular/platform-browser"导入 {BrowserModule}@成分({选择器:'我的应用'，模板:`<模板#clone let-session><div [id]="session">eps {{session}} ya</div><div #container></div><div><button (click)="create()">你好</button>`，})出口类应用{名称:字符串；@ViewChild('clone') 克隆:任意；@ViewChild('container', {read:ViewContainerRef}) container:any;构造函数(){this.name = 'Angular2'}创建(){让会话 = '测试';this.container.createEmbeddedView(this.clone, {context: {$implicit: session}});}}@NgModule({进口:[浏览器模块]，声明:[应用程序]，引导程序:[应用程序]})导出类 AppModule {}
还有那个笨蛋https://plnkr.co/edit/pWeQfTLroOjKoyKnaZvL?p=preview
我已经更新了您的 plunkr，基本上可以在 #8368 中找到答案:
<div [id]="context.session">eps {{context.session}} ya</div>this.container.createEmbeddedView(this.clone, {context: {session: session}});In Angular2 I have a template code that I am cloning whenever the user clicks a button, just like answered here How to dynamically add a cloned node in angular2 (equivalent to cloneNode)
I am trying to pass a variable to it, but it doesn't work. What's wrong?
import {Component, NgModule, ViewChild, ViewContainerRef} from '@angular/core'
import {BrowserModule} from '@angular/platform-browser'
@Component({
selector: 'my-app',
template: `
<template #clone let-session>
<div [id]="session">eps {{session}} ya</div>
</template>
<div #container></div>
<div>
<button (click)="create()">Hello</button>
</div>
`,
})
export class App {
name:string;
@ViewChild('clone') clone:any;
@ViewChild('container', {read:ViewContainerRef}) container:any;
constructor() {
this.name = 'Angular2'
}
create(){
let session = 'testing';
this.container.createEmbeddedView(this.clone, {context: {$implicit: session}});
}
}
@NgModule({
imports: [ BrowserModule ],
declarations: [ App ],
bootstrap: [ App ]
})
export class AppModule {}
And the plunker https://plnkr.co/edit/pWeQfTLroOjKoyKnaZvL?p=preview
I've updated your plunkr, basically answer could be found in #8368:
<template #clone let-context="context">
<div [id]="context.session">eps {{context.session}} ya</div>
</template>
this.container.createEmbeddedView(this.clone, {context: {session: session}});
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