在 Angular 中创建确认对话框的简单方法

Method 1个

一种简单的确认方法是使用本机浏览器确认alert .

<button type=button class="btn btn-primary"  (click)="clickMethod('name')">Delete me</button>

组件方法可以如下所示.

clickMethod(name: string) {
  if(confirm("Are you sure to delete "+name)) {
    console.log("Implement delete functionality here");
  }
}

Method 2

获得简单确认对话框的另一种方法是使用Angular bootstrap 组件，如ng-bootstrap或ngx-bootstrap.您只需安装组件并使用modal组件即可.

1. Examples of modals using ng-bootstrap
2. Examples of modals using ngx-bootstrap

Method 3

下面提供的是使用我在项目中实现的angular2/material实现简单确认弹出窗口的另一种方法.

应用程序.单元ts

import { FormsModule, ReactiveFormsModule } from '@angular/forms';
import { ConfirmationDialog } from './confirm-dialog/confirmation-dialog';

@NgModule({
  imports: [
    ...
    FormsModule,
    ReactiveFormsModule
  ],
  declarations: [
    ...
    ConfirmationDialog
  ],
  providers: [ ... ],
  bootstrap: [ AppComponent ],
  entryComponents: [ConfirmationDialog]
})
export class AppModule { }

confirmation-dialog.ts

import { Component, Input } from '@angular/core';
import { MdDialog, MdDialogRef } from '@angular/material';

@Component({
  selector: 'confirm-dialog',
  templateUrl: '/app/confirm-dialog/confirmation-dialog.html',
})
export class ConfirmationDialog {
  constructor(public dialogRef: MdDialogRef<ConfirmationDialog>) {}

  public confirmMessage:string;
}

confirmation-dialog.html

<h1 md-dialog-title>Confirm</h1>
<div md-dialog-content>{{confirmMessage}}</div>
<div md-dialog-actions>
  <button md-button style="color: #fff;background-color: #153961;" (click)="dialogRef.close(true)">Confirm</button>
  <button md-button (click)="dialogRef.close(false)">Cancel</button>
</div>

应用程序.组成部分html

<button (click)="openConfirmationDialog()">Delete me</button>

app.component.ts

import { MdDialog, MdDialogRef } from '@angular/material';
import { ConfirmationDialog } from './confirm-dialog/confirmation-dialog';

@Component({
  moduleId: module.id,
  templateUrl: '/app/应用程序.组成部分html',
  styleUrls: ['/app/main.css']
})

export class AppComponent implements AfterViewInit {
  dialogRef: MdDialogRef<ConfirmationDialog>;

  constructor(public dialog: MdDialog) {}

  openConfirmationDialog() {
    this.dialogRef = this.dialog.open(ConfirmationDialog, {
      disableClose: false
    });
    this.dialogRef.componentInstance.confirmMessage = "Are you sure you want to delete?"

    this.dialogRef.afterClosed().subscribe(result => {
      if(result) {
        // do confirmation actions
      }
      this.dialogRef = null;
    });
  }
}

index.html=>；添加到以下样式表

<link rel="stylesheet" href="node_modules/@angular/material/core/theming/prebuilt/indigo-pink.css">