Javascript 无法读取属性';切换';在这个.sidenav.toggle()中未定义的;
我正在使用mat sidenav作为导航抽屉Javascript 无法读取属性';切换';在这个.sidenav.toggle()中未定义的;,javascript,angular,typescript,angular-material,angular-material2,Javascript,Angular,Typescript,Angular Material,Angular Material2,我正在使用mat sidenav作为导航抽屉 <mat-sidenav-container class="sidenav-container"> <mat-sidenav #sidenav [mode]="isMobile ? 'over' : 'side'" [opened]="!isMobile" class="example-sidenav"> </mat-sidena
<mat-sidenav-container class="sidenav-container">
<mat-sidenav #sidenav [mode]="isMobile ? 'over' : 'side'" [opened]="!isMobile" class="example-sidenav">
</mat-sidenav>
<mat-sidenav-content>
<falcon-button-toggle *ngIf="isMobile" [field]="htmlButtonToggleConfig"
(toggleGroupChange)="toggleChange($event)"></falcon-button-toggle>
</mat-sidenav-content>
</mat-sidenav-container>
this.sidenav是未定义的请尝试从
@ViewChild
中删除{static:true}
,我使用angular 10,它应该是这样的:如果您要在ngOnInit中访问此元素,而该标记不在*ngIf
或类似内容中
export class ProductListComponent implements OnInit {
@ViewChild('sidenav', { static: true }) public sidenav: MatSidenav;
toggleChange($event) {
switch ($event) {
case ProductDetailsSortFilterEnum.Filter:
this.sidenav.toggle();
break;
}
}}