Angular 2 和 LeafLet Uncaught ReferenceError: <function> 未在 HTMLButtonElement.onclick 中定义

Question

我在 Angular 2 中有一个带有 Leaflet 的项目，我想通过单击按钮来调用简单的函数，但是我得到了

ReferenceError: <function> is not defined at HTMLButtonElement.onclick

这是我的代码。一切正常，但功能不行。

export class MapComponent implements OnInit {

//layer
  googleStreets = L.tileLayer('http://{s}.google.com/vt/lyrs=m&x={x}&y={y}&z={z}',{
    maxZoom: 30,
    subdomains:['mt0','mt1','mt2','mt3']
  });
//!!!The FUNCTION
  test() {
    console.log('test');
  }
constructor () {}

ngOnInit() {
  this.ParseService.getJ().subscribe(data => {
    this.myData = JSON.parse(data);

//set markers and popUps
for(let i = 0; i < this.myData.length; i++) {
  let lat =+((this.myData[i])['lat']);
  let lng =+((this.myData[i])['lng']);
  this.id = (this.myData[i])['code'];

//HERE IS THE PROBLEM. BUTTON APPEARS BUT FUNCTION IS NOT AVAILABLE 
      let popUp = (this.myData[i])['displayName'] +
        '<br/><button onclick="test">Raumplan</button>';

  let markerLocation = L.latLng(lat, lng);
  let marker =  new L.Marker(markerLocation, {icon: customIcon});
  map.addLayer(marker);
  marker.bindPopup(popUp);
}
  });

你能帮我解决方法吗？

Answer 1

不要使用，onclick因为它是一个HTML，您分配给的函数onclick将在ie 内部标签的全局scope中搜索，这不再是. 所以你应该尝试像下面这样javascript<script>Angular2

import {Component} from '@angular/core';
@Component({
selector: 'dynamic-button',
template: '<button type="button" (click)="test()">Raumplan</button>'
})

export class DynamicButton{
public test(): void{
alert("Hi. I am a test call");
  }
}

进而

let popUp = (this.myData[i])['displayName'] +
'<br/><dynamic-button></dynamic-button>';

Answer 2

在 angular2 中，您将像这样绑定事件：

let popUp = (this.myData[i])['displayName'] +
    '<br/><button (click)="test">Raumplan</button>';

或这个：

let popUp = (this.myData[i])['displayName'] +
    '<br/><button on-click="test">Raumplan</button>';