Angular2反应式表单删除错误

Angular 2 反应式表单中删除错误的实现

typescript
import { Component, OnInit } from '@angular/core';
import { FormBuilder, FormGroup, Validators } from '@angular/forms';
@Component({
  selector: 'app-my-form',
  templateUrl: './my-form.component.html',
  styleUrls: ['./my-form.component.css']
})
export class MyFormComponent implements OnInit {
  myForm: FormGroup;
  constructor(private fb: FormBuilder) { }
  ngOnInit(): void {
    this.myForm = this.fb.group({
      username: ['', Validators.required],
      email: ['', [Validators.required, Validators.email]],
      password: ['', Validators.required]
    });
  }
  // 其他逻辑和方法
}

typescript
removeError(fieldName: string): void {
  const control = this.myForm.get(fieldName);
  if (control) {
    control.setErrors(null);
  }
}

html
  Username:
  
  
    Username is required.
  
  
  Submit