我在forloop模板中输入了radio类型,如下所示:
<ng-template ngFor [ngForOf]="numberOfOptions | reverse" let-item>
<input id="rating{{item}}" type="radio" name="rating" value="{{item}}" [(ngModel)]="alreadySelected" [checked]="item === defaultSelected">
<label for="rating{{item}}">{{item}}</label>
</ng-template>
其中defaultSelected是我的组件中的属性:
defaultSelected: number
当页面重新加载时,选择了正确的无线电但突然之后它只会重置为未选择的无线电。
答案 0 :(得分:0)
该属性定义为:
set alreadySelected(value) {
this._alreadySelected = value
this.notify.emit(value);
}
但是没有吸气剂所以我添加了这样的吸气剂:
get alreadySelected(): number {
return this._alreadySelected
}
然后像这样检查条件:
<input id="rating{{item}}" type="radio" name="rating" [value]="item" [(ngModel)]="alreadySelected" [checked]="item == alreadySelected">
然后我有一个defaultSelected,因为它是可选的:
ngOnInit(): void {
if (this.defaultSelected) {
this.alreadySelected = this.defaultSelected
}
}