Angular 如何向DOM元素添加属性?
我需要向元素添加属性Angular 如何向DOM元素添加属性?,angular,angular5,angular8,Angular,Angular5,Angular8,我需要向元素添加属性multiple: <mat-select [formControlName]="field.name" multiple> 试着这样做: <mat-select [formControlName]="field.name" multiple [multiple]="!!field?.multiple" > <mat-select [formControlName]="field.name" [multiple]="field?.
multiple
:
<mat-select [formControlName]="field.name" multiple>
试着这样做:
<mat-select
[formControlName]="field.name" multiple
[multiple]="!!field?.multiple"
>
<mat-select [formControlName]="field.name" [multiple]="field?.multiple">
有一个多个
布尔@输入,因此您应该这样使用它:
<mat-select
[formControlName]="field.name" multiple
[multiple]="!!field?.multiple"
>
检查修改后的answerUnknown属性multiple,检查演示。
<mat-select
[formControlName]="field.name" multiple
[multiple]="!!field?.multiple"
>