如何添加点击事件动态添加打字稿中的html元素 [英] How to add click event to dynamically added html element in typescript
问题描述
我正在构建一个角度为2的应用程序。我想为点击事件添加一个动态添加的html元素。
我定义了一个字符串(contentString),并且在这个字符串中我定义了html元素。
var contentString =' < b>'+ this.mName +'< / b>< br /> '+ this.mObject.category +'< br />点击此处查看更多信息<按钮(click)=navigate()>浏览此处< / button>';
这个字符串放在一个html元素中,像这样:
var boxText = document.createElement(div);
boxText.innerHTML = contentString;
尽管当我检查元素时,它定义了click事件,但它不会触发。 / p>
on click it console log
navigate(){
console.log(eeeehnnananaa) ;
}
但这不起作用。
任何解决方案?
Angular在编译组件时处理模板。
您可以使用
构造函数(private elRef:ElementRef){}
ngAfterViewInit(){
//假设动态HTML被添加到
之前this.elRef.nativeElement.querySelector('按钮')。addEventListener('click',this.onClick.bind(this));
}
I'm building an app in angular 2. I want to add a click event to a dynamically added html element. I define a string (contentString), and in this string I define the html element.
var contentString = '<b>' + this.mName + '</b><br/> ' + this.mObject.category + '<br/> Click here for more information <button (click)="navigate()">Navigate here</button>';
This string is put inside a html element like this:
var boxText = document.createElement("div");
boxText.innerHTML = contentString;
Although when I inspect the element, it has the click event defined, but it does not trigger.
on click it should console log
navigate() {
console.log("eeeehnnananaa");
}
But that does not work. Anyone a solution?
Angular processes the template when the component is compiled. HTML added later is not compiled anymore and bindings are ignored.
You can use
constructor(private elRef:ElementRef) {}
ngAfterViewInit() {
// assume dynamic HTML was added before
this.elRef.nativeElement.querySelector('button').addEventListener('click', this.onClick.bind(this));
}
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