AngularMaterial动态菜单内容不显示
创始人
2024-10-28 09:01:35
0

检查动态数据是否正确传递给菜单组件,并确保使用ChangeDetectorRef触发变化检测。

示例代码:

在组件中声明变量并初始化:

menuItems: MenuItem[] = [ {name: 'Dashboard', link: '/dashboard'}, {name: 'Profile', link: '/profile'}, // add more items dynamically ];

在模板文件中绑定变量:

在组件中更新菜单项:

import { Component, ChangeDetectorRef } from '@angular/core'; import { MenuItem } from './menu-item.model';

@Component({ selector: 'app-menu', templateUrl: './menu.component.html', styleUrls: ['./menu.component.css'] }) export class MenuComponent { menuItems: MenuItem[] = [ {name: 'Dashboard', link: '/dashboard'}, {name: 'Profile', link: '/profile'} ];

constructor(private cdr: ChangeDetectorRef) {}

addMenuItem(name: string, link: string) { this.menuItems.push({name, link}); this.cdr.detectChanges(); } }

在另一个组件中调用addMenuItem方法:

import { Component } from '@angular/core'; import { MenuComponent } from './menu/menu.component';

@Component({ selector: 'app-root', template: , }) export class AppComponent { constructor(private menu: MenuComponent) {}

addMenuItem() { this.menu.addMenuItem('New Item', '/new-item'); } }

相关内容

热门资讯

透视游戏(WEPOKER)黑侠... 透视游戏(WEPOKER)黑侠破解wepoker(透视)总是是真的有挂(微扑克教程);黑侠破解wep...
透视透视!wepoker俱乐部... 透视透视!wepoker俱乐部辅助,wepoker免费辅助器(透视)2025新版教程(有挂方法);1...
透视计算(WEPOKER)we... 透视计算(WEPOKER)wepoker手机版透视脚本(透视)好像是真的有挂(规律教程);1、wep...
透视能赢!wepoker怎么挂... 透视能赢!wepoker怎么挂底牌,we-poker软件(透视)2025教程(有挂解说)运wepok...
透视规律(wepoker)we... 透视规律(wepoker)wepoker透视app下载(透视)果然是有挂(教你攻略);1、wepok...
透视神器!wepoker有辅助... 透视神器!wepoker有辅助功能吗,wepoker有机器人吗(透视)透牌教程(有挂工具)1、游戏颠...
透视教学(WePoKer)we... 透视教学(WePoKer)wepoker插件辅助(透视)本来是有挂(技巧教程)1、wepoker插件...
透视计算!wepoker私局代... 透视计算!wepoker私局代打,wepoker软件辅助程序(透视)必胜教程(有挂教程)一、wepo...
透视了解(WePoKer)we... 透视了解(WePoKer)wepoker私人局怎么玩(透视)都是有挂(规律教程)一、wepoker私...
透视苹果版!wepoker破解... 透视苹果版!wepoker破解器有用吗,wepoker代打辅助(透视)wpk教程(有挂插件)一、we...