我正在创建一个带有选中属性的单选按钮,但它没有显示选中
<mat-radio-group name="radioOpt1" [(ngModel)]="selectedRadio" [ngModelOptions]="{standalone: true}" (change)="radioChange($event)">
<mat-radio-button value="own" checked name="own">Own</mat-radio-button>
<mat-radio-button value="competitor" name="own">competitor</mat-radio-button> </mat-radio-group>
我希望默认选中第一个单选按钮
最佳答案
如果使用 ngModel
那么你需要通过值 单选按钮到 ngModel
.
<mat-radio-group name="radioOpt1" [(ngModel)]="selectedRadio"
[ngModelOptions]="{standalone: true}" (change)="radioChange($event)">
<mat-radio-button value="own" name="own">Own</mat-radio-button>
<mat-radio-button value="competitor" name="own">competitor</mat-radio-button>
</mat-radio-group>
和 ts 文件
selectedRadio = 'own'; //default value
radioChange(e){
console.log(this.selectedRadio)
}
或动态填充
<mat-radio-group name="radioOpt1" [(ngModel)]="selectedRadio"
[ngModelOptions]="{standalone: true}" (change)="radioChange($event)">
<mat-radio-button *ngFor="let but of list" [value]="but.id" name="own" >
{{but.name}}
</mat-radio-button>
</mat-radio-group>
.ts 文件
list = [{ "name": "own", id: "own"},{ "name": "competitor", id: "competitor"}];
selectedRadio =this.list[0].id;
关于angular-material - 选中的属性在 mat-radio-button 中不起作用,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/54554380/