Question

我有一组复选框是从属组合。如果我选中一个选项框，则一个1或2个其他选项应该自动检查，反之亦然。

posixpath.join

由于出现错误而无法实现此目标错误TypeError：values.forEach不是函数

Answer 1

从此示例中汲取灵感

component.html

<mat-selection-list #access (selectionChange)="onSelection($event, access.selectedOptions.selected)" >
  <mat-list-option *ngFor="let access of typesOfAccess" [value]='access' [selected]="access.checked">
    {{access.name}} 
  </mat-list-option>
</mat-selection-list>

Component.ts

 typesOfAccess = [{"name":"credit","checked":false},{"name":"sales","checked":true},{"name":"ops","checked":false},{"name":"bst","checked":false}];

  onSelection(e, v) { 
    this.typesOfAccess[3].checked = !this.typesOfAccess[3].checked;
    console.error(this.typesOfAccess[3].checked);
  }

玩这个

DEMO / EXMAMPLE

我想自动选中一个复选框上的某些复选框

1 个答案: