如何在Angular 7中将数据从组件传递到ngBootstrap模态?

时间:2019-03-21 04:47:38

标签: javascript angular angular7 ng-bootstrap

我有一个表,其中包含使用ngFor显示的数据。我需要在单击时以模式显示单个行数据。我可以通过将行作为click参数传递来在控制台中登录,但不能在模式内部传递它。

假设正在从服务中获取表数据,并且模式是与表位于相同组件文件中的模板引用。

这里是一个小提琴 https://stackblitz.com/edit/angular-xr8ud5

我使用了1.x角,并且数据通过了解析。我是Angular的新手,从未在ngBootstrap中工作。

感谢您的帮助。谢谢

3 个答案:

答案 0 :(得分:2)

只需要将选定的行存储在变量中,然后我们就可以将其显示在HTML上

在您的stackblitz中,将 modal-basic.html 更改为:

<table class="table">
  <thead>
    <tr>
      <th scope="col">#</th>
      <th scope="col">First</th>
      <th scope="col">Last</th>
      <th scope="col">Handle</th>
    </tr>
  </thead>
  <tbody>
    <tr *ngFor="let tableRow of table" (click)="open(content, tableRow)">
      <th scope="row">{{tableRow.id}}</th>
      <td>{{tableRow.first}}</td>
      <td>{{tableRow.last}}</td>
      <td>{{tableRow.handle}}</td>
    </tr>
  </tbody>
</table>


<ng-template #content let-modal>
  <div class="modal-header">
    <h4 class="modal-title" id="modal-basic-title">Details</h4>
    <button type="button" class="close" aria-label="Close" (click)="modal.dismiss('Cross click')">
      <span aria-hidden="true">&times;</span>
    </button>
  </div>
  <div class="modal-body">
    id:<u>{{selectedRow.id}}</u><br>
    first:<u>{{selectedRow.first}}</u><br>
    last:<u>{{selectedRow.last}}</u><br>
    handle:<u>{{selectedRow.handle}}</u>
  </div>
</ng-template>
<hr>

<pre>{{closeResult}}</pre>

在您的stackblitz中,将 modal-basic.ts 更改为:

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

import {NgbModal} from '@ng-bootstrap/ng-bootstrap';

@Component({
  selector: 'ngbd-modal-basic',
  templateUrl: './modal-basic.html'
})
export class NgbdModalBasic {
  closeResult: string;
  table = [
  {
    "id": 1,
    "first":"Mark",
    "last": "Otto",
    "handle": "@mdo"
  },{
    "id": 2,
    "first":"Jacob",
    "last": "Thornton",
    "handle": "@fat"
  },{
    "id": 3,
    "first":"Larry",
    "last": "the Bird",
    "handle": "@twitter"
  }
];

selectedRow;

  constructor(private modalService: NgbModal) {}

  open(content, tableRow) {
    this.modalService.open(content, {ariaLabelledBy: 'modal-basic-title'});
    //console.log(tableRow)
    this.selectedRow = {id:tableRow.id, first: tableRow.first, last:tableRow.last, handle:tableRow.handle};
  }
}

答案 1 :(得分:2)

可以通过Angular的2-way binding将数据从组件传递到ngBoostrap模态。实际上,这与在Angular 1.x上进行2向绑定的方式相同!

我为您制作了一个demo

首先,在您的model-basic.ts上,为模态定义模型。然后,为modalContent模型属性分配表行数据。

modalContent:undefined
  .
  .

open(content, tableRow) {
  this.modalContent = tableRow
  this.modalService.open(content, {ariaLabelledBy: 'modal-basic-title'});
}

在modal-basic.html上,您可以使用{{...}} template expression在模态本身上显示模型的各个属性。

<ng-template #content let-modal>
  <div class="modal-header">
    <h4 class="modal-title" id="modal-basic-title">Details</h4>
    <button type="button" class="close" aria-label="Close" (click)="modal.dismiss('Cross click')">
      <span aria-hidden="true">&times;</span>
    </button>
  </div>
  <div class="modal-body">
    id: {{ modalContent.id }}
    <br>
    first: {{ modalContent.first }}
    <br>
    last: {{ modalContent.last }}
    <br>
    handle: {{ modalContent.handle }}
  </div>
</ng-template>

答案 2 :(得分:0)

您可以在组件中为模态数据创建变量: StackBlitz

或者您可以为模式创建组件:
modal-basic.ts

openModal(dataToModal) {
        const modalRef = this.modalService.open(ModalComponent);
        modalRef.componentInstance.inputDataInModalComponent = dataToModal;
        modalRef.result.then(() => {});
        }, () => {});
    }

modal.component.ts

export ModalComponent implements OnInit{
    @Input() inputDataInModalComponent: any;

    ngOnInit() {
         console.log(inputDataInModalComponent);
    }
}