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当子组件调用方法时,angular.io中父组件的Propos不会改变。

我有这个方法dashboard.component

listPeers(){
    this.loading = true;
    this.localStorage.getItem("payload").subscribe( (storage : string) =>{
      this.jwt = storage;
      this.userService.listPeers(this.jwt).subscribe( (res) => {
        this.loading = false;
        if(res.success){
          console.log(res.peers)
          this.peers = res.peers;
          this.listUsersCrm();
        }else{
          this.snackBar.openFromComponent(ToastComponent, {
            data: res.msg
          });
          this.router.navigate(['/notfound']);
        }
      })
    })
  }

在“commit-changes.component”上,我调用了这个方法:

import { Component, OnInit} from '@angular/core';
import { DashboardComponent } from "../dashboard/dashboard.component";

@Component({
  providers: [DashboardComponent],
  selector: 'app-commit-changes',
  templateUrl: './commit-changes.component.html',
  styleUrls: ['./commit-changes.component.scss']
})
export class CommitChangesComponent implements OnInit {

  constructor(private dashBoardComponent : DashboardComponent) { }

  ngOnInit() {
  }

  discardChanges(){
    this.dashBoardComponent.listPeers();
  }


}

此方法已被调用,但来自父级 (dashboard.component) 的道具没有更改。

注意:该方法listPeers是调用 API 列出存储在 BD 上的 peers 并设置 peers props。

this.peers = res.peers;

执行此方法并应用道具更改的正确方法是什么?

4

0 回答 0