嗨,我正在使用表单生成器在角度2中实现一个表单
原文链接：https://www.f2er.com/angularjs/141537.html在component.ts中,我使用formGroup实现了我的表单
以下是我的代码
public myForm: FormGroup;
constructor(private authenticateservice: AuthenticateService,private _fb: FormBuilder
) {
}
ngOnInit() {
this.myForm = this._fb.group({
address: [this.userDetails.address,[<any>Validators.required]],address2: ['',city: ['',company_address: ['',company_address2: ['',company_city: ['',company_country: ['',company: ['',[<any>Validators.required,Validators.minLength(3)] ],company_tax_number: ['',company_zip: ['',Validators.minLength(5),Validators.maxLength(7)]],country: ['',email: ['',Validators.email]],first_name: [this.userDetails.first_name,id: ['',last_name: ['',phone: ['',Validators.minLength(10)]],zip: ['',user_type: ['2',terms: [0,hash_tag: [''],});
}
它工作正常.但是在frontEnd中显示验证时
我这样用过
<div class="form-group row">
<div class="col-lg-8">
<label>Address 2</label>
<textarea class="form-control" placeholder="Address" rows="2" [readonly]="disabled" id="companyaddress2" formControlName="company_address2"></textarea>
<span class="help-block form-error text-danger small" *ngIf="myForm.controls['company_address2'].hasError('required')">Company Address 2 is required.</span>
</div>
</div>
它正在工作,但在控制台中抛出错误,如下
错误TypeError：无法读取未定义的属性’hasError’
请帮我解释一下这个问题.
谢谢.
