浅析Angular19 自定义表单控件(5)
HTML
import { Component, OnInit, HostListener, Inject} from '@angular/core'; import { FormControl, FormGroup, FormBuilder, Validators } from '@angular/forms'; import { Http } from '@angular/http'; import { QuoteService } from '../../service/quote.service'; @Component({ selector: 'app-test01', templateUrl: './test01.component.html', styleUrls: ['./test01.component.scss'] }) export class Test01Component implements OnInit { countNumber: number = 9; outerCounterValue: number = 5; ngif = true; loginForm: FormGroup; testForm: FormGroup; data: any; name: FormControl = new FormControl(); desc: string = 'hello boy'; taskLists = [ {label: 1, name: '进行中'}, {label: 2, name: '已完成'} ]; constructor( private formBuilder: FormBuilder, private http: Http, @Inject('BASE_CONFIG') private baseConfig, private quoteService: QuoteService ) {} ngOnInit() { this.testForm = new FormGroup({ email: new FormControl('', [Validators.required, Validators.minLength(4)], []), password: new FormControl('', [Validators.required], []) }); this.name.valueChanges .debounceTime(500) .subscribe(value => alert(value)); this.loginForm = this.formBuilder.group({ username: ['', [Validators.required, Validators.minLength(4), this.myValidator], []], userpwd: ['', [Validators.required, Validators.minLength(6)], []] }); this.quoteService.test() .subscribe(resp => console.log(resp)); } onChangeNgifValue() { if (this.ngif == false) { this.ngif = true; } else { this.ngif = false; } } @HostListener('keyup.enter') onTestNgModelClick() { alert('提交'); } onTestClick() { // this.data = this.testForm.get('email').value; // console.log(this.testForm.getError); console.log(this.testForm.controls['email']); } onTestLogin() { console.log(this.loginForm.value); if (this.loginForm.valid) { console.log('登陆数据合法'); } else { console.log('登陆数据不合法'); console.log(this.loginForm.controls['username'].errors); console.log(this.loginForm.get('userpwd').errors); } } myValidator(fc: FormControl): {[key: string]: any} { const valid = fc.value === 'admin'; return valid ? null : {myValidator: {requiredUsername: 'admin', actualUsername: fc.value}}; } }
3.6 初始化效果展示