1. 将表单的方法移动到单独的ts文件夹中
2. code
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export function mobileValidator(control: FormControl): any {
const myreg = /^(((13[0-9]{1})|(15[0-9]{1})|(18[0-9]{1}))+\d{8})$/;
const valid = myreg.test(control.value);
console.log('mobile result: ' + valid);
return valid ? null : {mobile: true};
}
export function equalValidator(group: FormGroup): any {
const password: FormControl = group.get('password') as FormControl;
const pconfirm: FormControl = group.get('pconfirm') as FormControl;
const valid: boolean = password.value === pconfirm.value;
console.log('password equal: ' + valid);
return valid ? null : {equal: {descerr: '密码和确认密码不匹配'}};
}
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3. html
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<
form
[formGroup]="formModel" (submit)="submit()">
<
div
>
用户名：<
input
type="text" formControlName="username">
<
div
[hidden]="!formModel.hasError('required','username')">
用户名是必填项
</
div
>
<
div
[hidden]="!formModel.hasError('minlength','username')">
用户名是最小长度为6
</
div
>
电话：<
input
type="text" formControlName="mobile">
<
div
[hidden]="!formModel.hasError('mobile','mobile')">
请输入正确的手机号
</
div
>
<
div
formGroupName="passwordsGroup">
密码：<
input
type="password" formControlName="password">
确认密码：<
input
type="password" formControlName="pconfirm">
<
div
[hidden]="!formModel.hasError('minlength',['passwordsGroup', 'password'])">
密码最小长度为6
</
div
>
<
div
[hidden]="!formModel.hasError('equal','passwordsGroup')">
{{formModel.getError('equal','passwordsGroup')?.descerr}}
</
div
>
</
div
>
</
div
>
<
div
><
button
type="submit">保存</
button
></
div
>
</
form
>
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4. 控制器
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formModel: FormGroup;
constructor(private http: Http, fb: FormBuilder) {
this.formModel = fb.group({
username: ['', [Validators.required, Validators.minLength(6)]],
mobile: ['', mobileValidator],
passwordsGroup: fb.group({
password: ['', Validators.minLength(6)],
pconfirm: ['']
}, { validator: equalValidator} ),
});
}
submit() {
const isValid: boolean = this.formModel.get('username').valid;
console.log('username: ' + isValid);
const errors: any = this.formModel.get('username').errors;
console.log('username errors' + JSON.stringify(errors));
if ( this.formModel.valid) {
console.log(this.formModel.value);
}
}
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5. 状态字段
本文转自Work Hard Work Smart博客园博客，原文链接：http://www.cnblogs.com/linlf03/p/7345651.html，如需转载请自行联系原作者
