我正在开发一个使用angular2的应用程序。目前我正试图找出如何使用angular2-mdl制作动态下拉菜单,但我似乎无法找到正确的解决方案。这里是从我的项目angular2-mdl动态下拉菜单
<nav class="mdl-navigation mdl-layout--large-screen-only">
<ng-container *ngFor="let link of links; let i = index">
<ng-container *ngIf="!link.hasSubLinks()">
<button mdl-button class="mdl-navigation__link" (click)="route(link.url)" [routerLink]="link.url" routerLinkActive="active">
{{link.name}}
</button>
</ng-container>
<ng-container *ngIf="link.hasSubLinks()">
<button mdl-button class="mdl-navigation__link" #{{link.name}}="mdlButton" [mdl-toggle-menu]="submenu">
{{link.name}}
</button>
<mdl-menu #submenu="mdlMenu" mdl-menu-position="bottom-right" class="mdl-color--blue-grey-800">
<mdl-menu-item *ngFor="let subLink of link.subLinks">
<a class="mdl-navigation__link" [routerLink]="subLink.url" routerLinkActive="active">
<mdl-icon mdl-list-item-icon [mdl-badge]="subLink.badge>0?subLink.badge:null" mdl-badge-overlap role="presentation" class="colorwhite">{{subLink.icon}}</mdl-icon>{{subLink.name}}
</a>
</mdl-menu-item>
</mdl-menu>
</ng-container>
</ng-container>
</nav>
的代码片段看来它不工作我希望它像在材料设计精简版页关于menu,在那里当我点击一个菜单中的另一个关闭的方式。会发生什么是我可以打开所有下拉菜单,但是当我尝试关闭一个时,所有关闭。我认为我的问题是<button ... [mdl-toggle-menu]="submenu">
和<mdl-menu #submenu="mdlMenu" ... >
有没有一种方法来动态设置它的值?
我试图将值更改为<button ... [mdl-toggle-menu]="link.icon">
和<mdl-menu #{{link.icon}}="mdlMenu" ... >
但我得到一个错误。有任何想法吗?
error_handler.js:54 TypeError: this.menu.toggle is not a function
at MdlToggleMenuDirective.onClick (mdl-toggle-menu.directive.js:11)
at _View_AppComponent3._handle_click_2_2 (component.ngfactory.js:1162)
at view.js:375
at dom_renderer.js:262
at dom_events.js:30
at ZoneDelegate.invoke (zone.js:232)
at Object.onInvoke (ng_zone.js:238)
at ZoneDelegate.invoke (zone.js:231)
at Zone.runGuarded (zone.js:128)
at NgZone.runGuarded (ng_zone.js:133)
编辑
感谢模板...这里是plunker代码http://plnkr.co/edit/R6Bnadu124qOohjUWuMZ?p=preview
你可以创建一个最小的plnkr,我们可以用来找出你的问题。这里是angular2-mdl的模板:http://plnkr.co/edit/I3dLfLUDIH2xlEJqj0da?p=preview – michael