小编ana*_*ngh的帖子

angular 4“无法读取未定义的属性'toggle'”同时使用* ngIf =“sidemenuu == true”到侧面菜单

侧菜单.html

<button mat-icon-button (click)="snav.toggle()" value="sidebarclosed">
<mat-icon>menu</mat-icon>
</button>
<span fxFlex></span>
<app-header></app-header>
 </mat-toolbar>
 <mat-sidenav-container class="example-sidenav-container" 
[style.marginTop.px]="mobileQuery.matches ? 0 : 0">
    <mat-sidenav #snav id="snav" class="dark-sidebar pl-xs" 
[mode]="mobileQuery.matches ? 'side' : 'over'" fixedTopGap="0" 
[opened]="mobileQuery.matches" [disableClose]="mobileQuery.matches" 
*ngIf="sidemenuu == true" >
        <app-sidebar  ></app-sidebar>
    </mat-sidenav>
    <mat-sidenav-content class="page-wrapper">
        <div class="page-content">
            <router-outlet>
                <app-spinner></app-spinner>
            </router-outlet>
        </div>
    </mat-sidenav-content>

 </mat-sidenav-container>

这里是查看 location.path(); 有 indexOf('day') 然后 sidemenuu 为 false

侧菜单

export class SideMenuComponent implements OnDestroy, AfterViewInit {
mobileQuery: MediaQueryList;
url = '';
public sidemenuu: boolean = false; …