Javascript Angular 2自定义验证器如何设置control.valid true?
我有这样的自定义验证器:Javascript Angular 2自定义验证器如何设置control.valid true?,javascript,angularjs,typescript,angular,Javascript,Angularjs,Typescript,Angular,我有这样的自定义验证器: static isEmail(control:Control):{[key:string]:boolean} { let emailRegExp = new RegExp("^[-a-z0-9~!$%^&*_=+}{'?]+(.[-a-z0-9~!$%^&*_=+}{'?]+)*@([a-z0-9_][-a-z0-9_]*(.[-a-z0-9_]+)*.(aero|arpa|biz|com|coop|edu|gov|info|int|mil|muse
static isEmail(control:Control):{[key:string]:boolean} {
let emailRegExp = new RegExp("^[-a-z0-9~!$%^&*_=+}{'?]+(.[-a-z0-9~!$%^&*_=+}{'?]+)*@([a-z0-9_][-a-z0-9_]*(.[-a-z0-9_]+)*.(aero|arpa|biz|com|coop|edu|gov|info|int|mil|museum|name|net|org|pro|travel|mobi|[a-z][a-z])|([0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}))(:[0-9]{1,5})?$", 'i');
if (control.value.match(emailRegExp)) {
return {isEmail: true};
}
return {isEmail: false};
}
static isPassword(control:Control):{[key:string]:boolean} {
let passwordRegExp = new RegExp("^(?=.*?[A-Z])(?=.*?[a-z])(?=.*?[0-9])(?=.*?[#?!@$%^&*-]).{8,}$");
if (control.value.match(passwordRegExp)) {
return null;
}
return {isPassword: false};
}
在组件中使用它:
loginForm:ControlGroup;
constructor(private _router:Router,
private _loginService:LoginService,
private _formBuilder:FormBuilder) {
this.loginForm = _formBuilder.group({
email: ['', Validators.compose([
Validators.required,
Validators.minLength(8),
FormValidationService.isEmail
])],
password: ['', Validators.compose([
Validators.required,
Validators.minLength(8),
Validators.maxLength(30),
FormValidationService.isPassword
])]
});
}
和模板:
<form id="login-form" role="form" [ngFormModel]="loginForm" (ngSubmit)="onLoginSubmit()">
<div class="form-group">
<label class="control-label" for="loginFormEmail">Email</label>
<input type="text" id="loginFormEmail" class="form-control"
ngControl="email" #email="ngForm">
<div *ngIf="email.dirty && !email.valid">
<div class="alert alert-danger" role="alert" [hidden]="!email.errors.minlength">
Email field must have more then 8 characters
</div>
<div class="alert alert-danger" role="alert" [hidden]="email.errors.isEmail">
Email not valid
</div>
</div>
</div>
<div class="form-group">
<label class="control-label" for="loginFormPassword">Password</label>
<input type="password" id="loginFormPassword" class="form-control"
ngControl="password" #password="ngForm">
<div *ngIf="password.dirty && !password.valid">
<div class="alert alert-danger" role="alert" [hidden]="!password.errors.minlength">
Password field must have more then 8 characters
</div>
<div class="alert alert-danger" role="alert" [hidden]="!password.errors.maxlength">
Password field must have no more then 30 characters
</div>
<div class="alert alert-danger" role="alert" [hidden]="password.errors.isPassword">
Password must meet the following rules:
<ul>
<li>At least one upper case english letter</li>
<li>At least one lower case english letter</li>
<li>At least one digit</li>
<li>At least one special character</li>
</ul>
</div>
</div>
</div>
<p>If you forgot your password you can <a (click)="toForgot()">reset it</a>.</p>
<div class="form-group">
<button type="submit" class="btn btn-primary btn-block" [disabled]="!loginForm.valid">Login</button>
</div>
</form>
电子邮件
电子邮件字段必须超过8个字符
电子邮件无效
密码
密码字段必须超过8个字符
密码字段不能超过30个字符
密码必须符合以下规则:
- 至少一个大写英文字母
- 至少一个小写英文字母
- 至少一位数字
- 至少有一个特殊字符
如果你忘记了密码,你可以
我试图设置control.valid=true
,但此字段只有getter。我认为您需要将ngControlGroup
添加到包装元素中,否则表单将无法跟踪包含的输入元素
<div class="form-group" ngControlGroup="someName">
另请参见使用FormBuilder类将内联表单定义与ngForm和JS代码中的定义混合在一起
您应该以这种方式重构输入定义,以使用ngFormControl指令:
<input [ngFomControl]="loginForm.controls.password" .../>
我找到了答案。当控件值有效时,您必须在自定义验证器中返回null:
static isEmail(control:Control):{[key:string]:boolean} {
let emailRegExp = new RegExp("^[-a-z0-9~!$%^&*_=+}{'?]+(.[-a-z0-9~!$%^&*_=+}{'?]+)*@([a-z0-9_][-a-z0-9_]*(.[-a-z0-9_]+)*.(aero|arpa|biz|com|coop|edu|gov|info|int|mil|museum|name|net|org|pro|travel|mobi|[a-z][a-z])|([0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}))(:[0-9]{1,5})?$", 'i');
if (control.value.match(emailRegExp)) {
return {isEmail: true};
}
return {isEmail: false};
}
static isPassword(control:Control):{[key:string]:boolean} {
let passwordRegExp = new RegExp("^(?=.*?[A-Z])(?=.*?[a-z])(?=.*?[0-9])(?=.*?[#?!@$%^&*-]).{8,}$");
if (control.value.match(passwordRegExp)) {
return null;
}
return {isPassword: false};
}
我认为你是对的。但现在它对我不起作用了。我想你忘了更新你的ngIfs(“loginForm.controls.password.dirty&&!login.controls.password.valid”例如),并在表达式中使用Elvis运算符隐藏:“loginForm.controls.password.errors?.isPassword”例如。我在docs方法setErrors()中找到了其他人用过它吗?