Sinopec-Anxin/src/app/pages/today-warning/today-warning.component.ts

import { Component, OnInit } from '@angular/core';
import { FormBuilder, FormGroup, Validators } from '@angular/forms';
@Component({
  selector: 'app-today-warning',
  templateUrl: './today-warning.component.html',
  styleUrls: ['./today-warning.component.scss']
})
export class TodayWarningComponent implements OnInit {
  validateForm!: FormGroup;
  constructor(private fb: FormBuilder) { }

  ngOnInit(): void {
    this.validateForm = this.fb.group({
      level: [null],
      type: [null],
      site: [null],
      datePicker: [null]
    });
  }

  submitForm(): void {
    for (const i in this.validateForm.controls) {
      this.validateForm.controls[i].markAsDirty();
      this.validateForm.controls[i].updateValueAndValidity();
    }
    
    console.log(this.validateForm)
  }
}