angular - 如何将服务变量传递到 Angular Material 对话框中？

Question

对于 mdDialog ，如何传入变量？具体来说，如何将 Angular 服务注入(inject)到对话框组件中？

Answer 1

为了传递变量，您可以从 MdDialog.open() 方法调用返回的 MdDialogRef 实例中获取在对话框中打开的组件的实例。

dialogRef = this.dialog.open(PizzaDialog, config)
dialogRef.componentInstance.<property_name>

来自 的改良披萨 github material2 docs angular material doc

@Component({
  selector: 'pizza-component',
  template: `
  <button type="button" (click)="openDialog()">Open dialog</button>
  `
})
export class PizzaComponent {

  constructor(public dialog: MdDialog) { }

  openDialog() {
    let config = new MdDialogConfig();
    let dialogRef:MdDialogRef<PizzaDialog> = this.dialog.open(PizzaDialog, config);
    dialogRef.componentInstance.name = "Ham and Pineapple";
    dialogRef.componentInstance.size = "Large";
  }
}

@Component({
  selector: 'pizza-dialog',
  template: `
  <h2>{{name}}</h2>
  <p>Size: {{size}}</p>
  <button type="button" (click)="dialogRef.close('yes')">Yes</button>
  <button type="button" (click)="dialogRef.close('no')">No</button>
  `
})
export class PizzaDialog {
  name:string;
  size:string;
  constructor(public dialogRef: MdDialogRef<PizzaDialog>) { }
}