如何在Angular 5中验证和关闭bootstrap 3模式表单？

<form class="form-horizontal" role="form" [formGroup]="myForm">
  <div class="form-group">
    <label for="name" class="col-sm-2 control-label">Name</label>
    <div class="col-sm-10">
      <input type="text" class="form-control" id="name" formControlName="name">
    </div>
  </div>
  <!-- 其他表单字段 -->
  <button type="submit" class="btn btn-primary" [disabled]="myForm.invalid">Submit</button>
</form>

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 formBuilder: FormBuilder) { }

  ngOnInit() {
    this.myForm = this.formBuilder.group({
      name: ['', Validators.required],
      // 其他表单字段
    });
  }
}

import { NgModule } from '@angular/core';
import { CommonModule } from '@angular/common';
import { FormsModule, ReactiveFormsModule } from '@angular/forms';

import { MyFormComponent } from './my-form.component';

@NgModule({
  declarations: [MyFormComponent],
  imports: [
    CommonModule,
    FormsModule,
    ReactiveFormsModule
  ],
  exports: [MyFormComponent]
})
export class MyFormModule { }

<app-my-form></app-my-form>