尝试使用自定义组件创建表单时出现以下错误。
错误:没有名称的表单控件的值访问器: ' nomeEmpresaAerea' 错误:没有名称的表单控件的值访问器:' nomeEmpresaAerea' 堆栈跟踪: _throwError @的WebPack内部:///./node_modules/@angular/forms/esm5/forms.js:2510:11 setUpControl @的WebPack内部:///./node_modules/@angular/forms/esm5/forms.js:2380:9 FormGroupDirective.prototype.addControl@webpack-internal:///./node_modules/@angular/forms/esm5/forms.js:6736:9 FormControlName.prototype._setUpControl@webpack-internal:///./node_modules/@angular/forms/esm5/forms.js:7386:45 FormControlName.prototype.ngOnChanges@webpack-internal:///./node_modules/@angular/forms/esm5/forms.js:7299:13 checkAndUpdateDirectiveInline @的WebPack内部:///./node_modules/@angular/core/esm5/core.js:12581:9 checkAndUpdateNodeInline @的WebPack内部:///./node_modules/@angular/core/esm5/core.js:14109:20 checkAndUpdateNode @的WebPack内部:///./node_modules/@angular/core/esm5/core.js:14052:16 debugCheckAndUpdateNode @的WebPack内部:///./node_modules/@angular/core/esm5/core.js:14945:55 debugCheckDirectivesFn @的WebPack内部:///./node_modules/@angular/core/esm5/core.js:14886:13 View_EmpresaCadastroComponent_0 /< @ng:///EmpresaModule/EmpresaCadastroComponent.ngfactory.js:80:5 debugUpdateDirectives @的WebPack内部:///./node_modules/@angular/core/esm5/core.js:14871:12 checkAndUpdateView @的WebPack内部:///./node_modules/@angular/core/esm5/core.js:14018:5 callViewAction @的WebPack内部:///./node_modules/@angular/core/esm5/core.js:14369:21
这是我的反应形式:
import { Component, OnInit, Input } from '@angular/core';
import { Router } from '@angular/router';
import { HttpClient } from '@angular/common/http';
import { FormArray, FormBuilder, FormGroup, Validators } from '@angular/forms';
@Component({
selector: 'app-empresa-cadastro',
templateUrl: './empresa-cadastro.component.html',
styleUrls: ['./empresa-cadastro.component.css']
})
export class EmpresaCadastroComponent implements OnInit {
@Input() empresa = {};
empresaForm: FormGroup;
constructor(private route: Router, private http: HttpClient, private fb: FormBuilder) {
this.createForm();
}
createForm() {
this.empresaForm = this.fb.group({
nomeEmpresaAerea: '',
status: 'S',
});
}
这是我的HTML:
<form [formGroup]="empresaForm" (ngSubmit)="onSubmit()">
<div style="margin-bottom: 1em">
<button type="submit" [disabled]="empresaForm.pristine" class="btn btn-success">Cadastrar</button>
<button type="button" (click)="limpar()" [disabled]="empresaForm.pristine" class="btn btn-danger">Limpar</button>
</div>
<div class="form-group">
<label class="center-block">Nome:
<input class="form-control" >
<app-pf-input-text formControlName="nomeEmpresaAerea" ></app-pf-input-text>
</label>
</div>
</form>
PF-输入text.componente.ts:
import { Component, OnInit, Input } from '@angular/core';
@Component({
selector: 'app-pf-input-text',
templateUrl: './pf-input-text.component.html',
styleUrls: ['./pf-input-text.component.scss']
})
export class PfInputTextComponent implements OnInit {
@Input() id: string;
@Input() name: string;
@Input() value: string;
@Input() placeholder: string;
//falta trim
@Input() maxlength: string;
@Input() minlength: string;
@Input() disabled: boolean;
@Input() required: boolean;
constructor() { }
ngOnInit() {
}
}
PF-输入text.component.html
<div class="input-group">
<input
type="text"
id="{{id}}"
name="{{name}}"
placeholder="{{placeholder}}"
attr.maxlength="{{maxlength}}"
class="form-control"
disabled="{{disabled}}"
required="{{required}}">
</div>
答案 0 :(得分:1)
在反应式组件
中尝试此操作this.empresaForm = new FormGroup({
'nomeEmpresaAerea': new FormControl(null, Validators.required)});