如何在angularjs2中进行表单验证 [英] How to produce form validations in angularjs2
本文介绍了如何在angularjs2中进行表单验证的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我正在尝试通过一种验证方式创建一个表单,以便在提交表单时必须用红色突出显示无效字段,但是我不确定我在哪里错了有人可以帮助我
I am trying to create a from validations in such a way that when form is submitted the invalid fields must be highlighted with red color but i am not sure where i am wrong can someone help me
我的模板
<form id="login-form" name="login-form" class="nobottommargin" [formGroup]="form" (ngSubmit)="onSubmit(form.value)">
<p *ngIf="activation" class="activation">We have sent an activation link to your email</p>
<div class="form-group col-sm-offset-2">
<label class="radio-inline">
<input type="radio" [formControl]="form.controls['type']" value = 'personal' name="optradio">Personal
</label>
<label class="radio-inline">
<input type="radio" [formControl]="form.controls['type']" value = 'professional' name="optradio">Professional
</label>
</div>
<div class="form-group">
<input type="text" [formControl]="form.controls['firstname']" id="login-form-firstnamee" name="login-form-firstname" value="" placeholder="First Name" class="sm-form-control not-dark formcontrolheight required">
</div>
<div class="clear"></div>
<div class="col-sm-12 labeltopmargin nopadding">
<button class="col-xs-12 button buttonmeroon button-mini nomargin" id="login-form-submit" name="login-form-submit" value="login">Sign Up</button>
</div>
<div class="clear"></div>
</form>
我的ts
export class SignUp {
http: Http;
emailfailure: any;
activation: any;
profilefailure: any;
form:any;
constructor(fbld: FormBuilder, http: Http, public router: Router) {
this.http = http;
this.form = fbld.group({
firstname: ['', Validators.required],
lastname: ['', Validators.required],
profilename: ['', Validators.required],
email: ['', Validators.required],
password: ['', Validators.required],
repeatpassword: ['', Validators.required],
image: [''],
phone: ['', phoneValidator],
type: ['',],
}
推荐答案
这是angular 2中的简单表单验证
This is simple form validation in angular 2
<form #heroForm="ngForm">
<div class="form-group">
<label for="name">Name</label>
<input type="text" class="form-control" id="name"
required
[(ngModel)]="info.name" name="name"
#name="ngModel" >
<span *ngIf="!name.valid && !name.pristine" style="color:red;"> <span>name is Required</span></span>
</div>
<div class="form-group">
<label for="alterEgo">Alter Ego</label>
<input type="text" class="form-control" id="alterEgo"
[(ngModel)]="info.age" name="alterEgo" >
</div>
<button type="button" class="btn btn-default" (click)="enter()">ENTER</button>
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