相关疑难解决方法(0)

按照指南:https: //www.primefaces.org/primeng/我已经尝试安装PrimeNG与Angular4一起使用,按照上面详述的步骤,但是我收到错误:

'p-dropdown' is not a known element:

我尝试重建项目,正如其他帖子所建议的那样,但它对我不起作用.任何提示？

以下是所有细节:

- PrimeNg安装

npm install primeng --save

- file:testdropdown.component.html

<p-dropdown [options]="cities" [(ngModel)]="selectedCity"></p-dropdown>

- file:testdropdown.component.ts

import { DropdownModule } from 'primeng/primeng';
import { Component, OnInit } from '@angular/core';
import { SelectItem } from 'primeng/primeng';

@Component({
  selector: 'app-testdropdown',
  templateUrl: './testdropdown.component.html',
  styleUrls: ['./testdropdown.component.css']
})
export class TestdropdownComponent implements OnInit {

  cities: SelectItem[];

  selectedCity: string;

  constructor() {

  this.cities = [];
    this.cities.push({ label: 'Select City', value: null });
    this.cities.push({ label: 'New York', value: { …