<input type="number" name="age" ng-model="user.age" /> 7. URL 验证输入内容是否是URL,将input的类型设置为 url: <input type="url" name="homepage" ng-model="user.facebook_url" /> 下面我们将这些表单验证放到具体的实现中来测试一下: <divclass="col-md-6"><formrole="form"class="form-...
ctrl.$setValidity('validateNumberLetter', false); return undefined; }else{ // it is valid ctrl.$setValidity('validateNumberLetter', true); return n; } } } }); } }; }) html代码: <div class="form-group-right"> <input required validate-number-letter id="name" name="name" class="fo...
<input mdInput [mdDatepicker]="birthPicker" type="text" placeholder="出生日期" formControlName="birthday" > <button mdSuffix [mdDatepickerToggle]="birthPicker" type="button"></button> <md-error>日期不正确</md-error> </md-input-container> <md-datepicker touchUi="true" #birthPicker></md...
providers: [{provide: NG_VALIDATORS, useExisting: MaxValidator, multi: true}] }) export class MaxValidator implements Validator { @Input() max:number; validate(control: AbstractControl): {[key: string
在日常开发中我们表单验证是我们必须面对的问题之前。在使用angular之前,做表单验证的话一般自己来封装一些公用的js库,或者使用jquery.validate这样的第三方库来实现。那么在angular里是如果做表单验证的呢? angular的表单验证,能够将H5表单验证的功能和自己的验证指令结合起来进行使用,并且非常方便。
具体示例如下: 1.自定义 VALIDATOR 1.1 定义验证函数 exportconstvalidateCounterRange:ValidatorFn= (control:AbstractControl):ValidationErrors=>{return(control.value>10|| control.value<0) ? {'rangeError': {current: control.value,max
= StringField(validators=[Email(message='邮箱格式不正确')]) username...= StringField(validators=[InputRequired(message='这个字段必须要填')]) age = IntegerField(validators=[NumberRange...(validators=[URL()]) captcha = StringField(validators=[Length(4,4)]) # 自定义验证器 def validate_...
AngularInputsValidationService) { } this.validateService.confirmPasswordValidators("password123", "password234"); this.validateService.emailValidation("email@gmail.com"); this.validateService.nameFieldCheck("Name"); this.validateService.passwordValidation("password@123"); this.validateService.numberValid...
The required validator does not work with a input whose type is number : <input type="number" ngControl="weight" /> this.form = fb.group({ weight: ["", Validators.required] }); When the input is empty, no error appear. The reason is that...
I'm trying to figure out how I can validate an input field on every key press. If the text in the input field is considered invalid by some validation function, I would like to cancel the keypress or simply restore the original value. This way, the input field should always contain a...