【发布时间】:2021-03-14 00:33:52
【问题描述】:
我正在尝试使用 ngbootstra 订阅模式的关闭事件,但我不明白它是如何工作的。我有 2 个组件,第一个用于启动模态,第二个在内部。
第一个
html
<button class="btn btn-lg btn-outline-primary" (click)="open()">Launch demo modal</button>
TS
import { OtherComponent } from './../other/other.component';
import { Component, OnInit } from '@angular/core';
import { NgbModal } from '@ng-bootstrap/ng-bootstrap';
import { NgbActiveModal } from '@ng-bootstrap/ng-bootstrap/modal/modal.module';
@Component({
selector: 'app-joker',
templateUrl: './joker.component.html',
styleUrls: ['./joker.component.scss']
})
export class JokerComponent {
constructor(private modalService: NgbModal, private activeModal: NgbActiveModal) { }
open(): void{
const modalRef = this.modalService.open(OtherComponent, {centered: true});
modalRef.componentInstance.name = 'Gerardo';
}
}
第二次
html
<div class="modal-header">
<h4 class="modal-title">Hi there!</h4>
<button type="button" class="close" aria-label="Close" (click)="activeModal.dismiss('Cross click')">
<span aria-hidden="true">×</span>
</button>
</div>
<div class="modal-body">
<p>Hello, {{name}}!</p>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-outline-dark" (click)="activeModal.close('Close click')">Close</button>
</div>
TS
import { Component, Input} from '@angular/core';
import { NgbActiveModal } from '@ng-bootstrap/ng-bootstrap';
@Component({
selector: 'app-other',
templateUrl: './other.component.html',
styleUrls: ['./other.component.scss']
})
export class OtherComponent {
@Input() name: any;
constructor(public activeModal: NgbActiveModal) { }
}
但是我不知道如何进行订阅,因为它说 close 方法不是可观察的,我也喜欢知道当模式在第二个组件(第二个)中关闭时如何发出任何值有人知道吗?怎么办?
顺便说一句,有必要取消订阅吗?
【问题讨论】:
-
Gerakt,你传入的 clised 数据是函数 activeModal.close('Close click')`` 的参数。在这种情况下只是一个字符串,您可以在 .ts 中使用,例如
this.activeModal.close({lastName:'lastName',firstName:'firstName'})并获取promise中的值
标签: angular typescript ng-bootstrap angular2-observables