为什么我一直得到这个错误?我认为我做的一切都对吗?FormArray TypeError:value.forEach不是函数
“例外:未捕获(在承诺):类型错误:value.forEach不是函数 类型错误:value.forEach不在FormArray.setValue一个函数”
组件类:
jobDetails: FormGroup;
techFormArray: FormArray;
constructor(private formBuilder: FormBuilder){
this.techFormArray = new FormArray([
new FormControl(''),
new FormControl(''),
new FormControl('')
]);
this.jobDetails = this.formBuilder.group({
techs: this.formBuilder.array([])
});
this.jobDetails.setValue({
techs: this.techFormArray
});
}
HTML:
<form [formGroup]="jobDetails">
<div formArrayName="techs" >
<div style="display: flex; flex-direction: column">
<div *ngFor="let tech of techFormArray.controls; let i=index">
<md-checkbox [formControlName]="i">
{{i}}
</md-checkbox>
</div>
</div>
</div>
</form>
SOLUTION:
FunStuff有正确的,我不能使用setValue ....所以我删除它。问题解决了哈哈。我改变了几件事情,我不确定我做了什么,它几乎是几个小时的暴力试验和错误,但后来它工作! :)
这是工作版本!
jobDetails: FormGroup;
constructor(private formBuilder: FormBuilder){
this.jobDetails = formBuilder.group({
techs: formBuilder.array([
formBuilder.control(''),
formBuilder.control('')
])
});
}
新的HTML:
<form [formGroup]="jobDetails">
<div formArrayName="techs" >
<div style="display: flex; flex-direction: column">
<div *ngFor="let tech of jobDetails.controls.techs.controls; let i=index">
<md-checkbox [formControlName]="i">
{{i}}
</md-checkbox>
</div>
</div>
</div>
</form>
分别是代码中的每个功能..一些,你试图控制.value.foreach funtion – mayur
这样的东西: - 'this.techFormArray.value.forEach(()=> {/ ** /}' – mayur
这是导致错误的组件。没有告诉它使用循环,但我认为FunStuff的答案可能是为什么。我今天会看看。 – Jus10