我正在使用 ReativeForms。我有一个数组,其中包含我想显示为复选框的值。这就是我所拥有的:
饮食限制清单包括
- RestrictionType: string = 应该是复选框的名称
- IsChecked: boolean = 是否检查
在我的 ngOnInit() 中,我初始化了我的数组。
this.healthInfoForm = this._fb.group(
{
dietaryRestrictionList: this._fb.array([]),
});
当我得到数据时,我做了一个 for 循环,我设置了值:
> const control =
> <FormArray>this.healthInfoForm.controls['dietaryRestrictionList'];
> for(var i = 0; i < this.dietaryRestrictionList.length; i++){
> let checkBoxLabel = this.dietaryRestrictionList[i].RestrictionType;
> control.push(this._fb.group({
> checkBoxLabel: this.dietaryRestrictionList[i].IsChecked// set whether it's checked or not
> })) }
现在我想在 html 页面中显示这个:
<div formArrayName="dietaryRestrictionList" class="form-group">
<div *ngFor="let diet of healthInfoForm.controls.dietaryRestrictionList.controls; let i=index" >
<div [formGroupName]="i">
<label>
<input type="checkbox" [formControl]="let diet of healthInfoForm.controls.[diet.boxName]" class="form-control">
</label>
</div>
</div>
</div>
我正在尝试遵循此示例:https ://scotch.io/tutorials/angular-2-form-validation
事情不工作。我收到一条错误消息:
Unhandled Promise rejection: Template parse errors:
Parser Error: Unexpected token let at column 1 in [let diet of
healthInfoForm.controls.[diet.boxName]] in HealthInformationComponent@270:53 ("
<label><input type="checkbox" [ERROR ->][formControl]="let diet of healthInfoForm.controls.[diet.boxName]" class="form-control">"): HealthInformationComponent@270:53
我怎样才能让它工作?