import { Component ,OnInit } from '@angular/core';
import { FormControl, FormGroup, Validators,FormBuilder } from '@angular/forms';
@Component({
selector: 'app-root',
templateUrl: './app.component.html',
styleUrls: ['./app.component.css']
})
export class AppComponent implements OnInit {
title = 'Dunamic validation';
validationStatus:string = "Validate Email and Address";
validationTypes:[] = ['Email And Address','Email','Address','None']
myForm:FormGroup;
constructor(private fb: FormBuilder){
this.myForm = this.fb.group({
'validationType':[],
'email':[],
'address1':[]
})
}
ngOnInit() {
this.myForm.controls['validationType'].valueChanges.subscribe((selectedValidator) => {
console.log(selectedValidator);
this.updateValidator(selectedValidator);
});
this.myForm.controls['validationType'].setValue(this.validationTypes[0]);
}
updateValidator(validator){
let validateAddress:boolean = validator === 'Address';
let validateEmail:boolean = validator === 'Email';
let validateEmailAndAddress:boolean = validator === 'Email And Address';
let validateNone:boolean = validator === 'None';
if(validateEmailAndAddress){
this.myForm.get("email").setValidators([Validators.required,Validators.email]);
this.myForm.get("address1").setValidators([Validators.required]);
this.validationStatus = "Validate Email and Address";
}
else if(validateAddress){
this.myForm.get("address1").setValidators([Validators.required]);
this.myForm.get("email").clearValidators();
this.validationStatus = "Validate Address";
}
else if(validateEmail){
this.validationStatus = "Validate Email";
this.myForm.get("address1").clearValidators();
this.myForm.get("email").setValidators([Validators.required]);
}
else if(validateNone){
console.log('clearValidators..')
this.myForm.get("email").clearValidators();
this.myForm.get("address1").clearValidators();
}
this.myForm.controls["email"].setValue('');
this.myForm.controls["address1"].setValue('');
this.myForm.get('email').markAsPristine();
this.myForm.get('email').markAsUntouched();
this.myForm.get('email').updateValueAndValidity();
this.myForm.get('address1').markAsPristine();
this.myForm.get('address1').markAsUntouched();
this.myForm.get('address1').updateValueAndValidity();
}
}
/*
Copyright 2017 Google Inc. All Rights Reserved.
Use of this source code is governed by an MIT-style license that
can be found in the LICENSE file at http://angular.io/license
*/
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { FormsModule,ReactiveFormsModule } from '@angular/forms';
import { AppComponent } from './app.component';
@NgModule({
imports: [
BrowserModule,
FormsModule,
ReactiveFormsModule
],
declarations: [
AppComponent
],
bootstrap: [ AppComponent ]
})
export class AppModule { }
/*
Copyright 2017 Google Inc. All Rights Reserved.
Use of this source code is governed by an MIT-style license that
can be found in the LICENSE file at http://angular.io/license
*/
/* AppComponent's private CSS styles */
h1 {
font-size: 1.2em;
color: #999;
margin-bottom: 0;
}
h2 {
font-size: 2em;
margin-top: 0;
padding-top: 0;
}
nav a {
padding: 5px 10px;
text-decoration: none;
margin-top: 10px;
display: inline-block;
background-color: #eee;
border-radius: 4px;
}
nav a:visited, a:link {
color: #607D8B;
}
nav a:hover {
color: #039be5;
background-color: #CFD8DC;
}
nav a.active {
color: #039be5;
}
/*
Copyright 2017 Google Inc. All Rights Reserved.
Use of this source code is governed by an MIT-style license that
can be found in the LICENSE file at http://angular.io/license
*/
<h1>Angular Reactive form - Dynamic validation </h1>
<br>
<form>
<div [formGroup]="myForm">
<div class="form-row">
<div class="form-group col-md-6">
<label for="validationType">Controls to Validate (Required Filed Validator)</label>
<select class="form-control" id="validationType" formControlName="validationType" >
<option *ngFor="let validation of validationTypes" [ngValue]="validation">
{{validation}}
</option>
</select>
</div>
</div>
<div class="form-row" [ngClass]="{'has-danger': (myForm.get('email').hasError('required') || myForm.get('email').hasError('email')) && myForm.get('email').touched}">
<div class="form-group col-md-6">
<label for="email">Email</label>
<input type="email" class="form-control" id="email" [(ngModel)]="email" formControlName="email" placeholder="Email">
<p *ngIf="myForm.get('email').hasError('required') && myForm.get('email').touched"><span class="form-control-feedback">Email is Required Field</span></p>
<p *ngIf="!myForm.get('email').hasError('required') && myForm.get('email').hasError('email') && myForm.get('email').touched"><span class="form-control-feedback">Please enter valid Email address</span></p>
</div>
</div>
<div class="form-row" [ngClass]="{'has-danger': myForm.get('address1').hasError('required') && myForm.get('address1').touched}">
<div class="form-group col-md-6">
<label for="address1">Address</label>
<input type="text" class="form-control" id="address1" formControlName="address1" [(ngModel)]="address1" placeholder="1234 Main St">
<p *ngIf="myForm.get('address1').hasError('required') && myForm.get('address1').touched"><span class="form-control-feedback">Address is Required Field</span></p>
</div>
</div>
<div class="form-row">
<div class="form-group col-md-6">
<button type="text" class="btn btn-primary" id="btn" [disabled]="!myForm.valid">Submit</button>
</div>
</div>
</div>
<span *ngIf="!myForm.valid" class="alert alert-success">Submit button is <strong>disabled..</strong></span>
<span *ngIf="myForm.valid" class="alert alert-success">Submit button is <strong>enabled..</strong></span>
</form>
import { enableProdMode } from '@angular/core';
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { AppModule } from './app/app.module';
platformBrowserDynamic().bootstrapModule(AppModule);
/*
Copyright 2017 Google Inc. All Rights Reserved.
Use of this source code is governed by an MIT-style license that
can be found in the LICENSE file at http://angular.io/license
*/
/* Master Styles */
h1 {
color: #369;
font-family: Arial, Helvetica, sans-serif;
font-size: 250%;
}
h2, h3 {
color: #444;
font-family: Arial, Helvetica, sans-serif;
font-weight: lighter;
}
body {
margin: 2em;
}
body, input[text], button {
color: #888;
font-family: Cambria, Georgia;
}
a {
cursor: pointer;
cursor: hand;
}
button {
font-family: Arial;
background-color: #eee;
border: none;
padding: 5px 10px;
border-radius: 4px;
cursor: pointer;
cursor: hand;
}
button:hover {
background-color: #cfd8dc;
}
button:disabled {
background-color: #eee;
color: #aaa;
cursor: auto;
}
/* Navigation link styles */
nav a {
padding: 5px 10px;
text-decoration: none;
margin-right: 10px;
margin-top: 10px;
display: inline-block;
background-color: #eee;
border-radius: 4px;
}
nav a:visited, a:link {
color: #607D8B;
}
nav a:hover {
color: #039be5;
background-color: #CFD8DC;
}
nav a.active {
color: #039be5;
}
/* everywhere else */
* {
font-family: Arial, Helvetica, sans-serif;
}
/*
Copyright 2017 Google Inc. All Rights Reserved.
Use of this source code is governed by an MIT-style license that
can be found in the LICENSE file at http://angular.io/license
*/
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Tour of Heroes</title>
<script>document.write('<base href="' + document.location + '" />');</script>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="icon" type="image/x-icon" href="favicon.ico">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/css/bootstrap.min.css" integrity="sha384-rwoIResjU2yc3z8GV/NPeZWAv56rSmLldC3R/AZzGRnGxQQKnKkoFVhFQhNUwEyJ" crossorigin="anonymous">
<link rel="stylesheet" href="styles.css">
<script src="https://unpkg.com/core-js/client/shim.min.js"></script>
<script src="https://unpkg.com/zone.js@0.7.4?main=browser"></script>
<script src="https://unpkg.com/systemjs@0.19.39/dist/system.src.js"></script>
<script src="systemjs.config.js"></script>
<script>
System.import('main.js').catch(function(err){ console.error(err); });
</script>
</head>
<body>
<app-root></app-root>
<script src="https://code.jquery.com/jquery-3.1.1.slim.min.js" integrity="sha384-A7FZj7v+d/sdmMqp/nOQwliLvUsJfDHW+k9Omg/a/EheAdgtzNs3hpfag6Ed950n" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/tether/1.4.0/js/tether.min.js" integrity="sha384-DztdAPBWPRXSA/3eYEEUWrWCy7G5KFbe8fFjk5JAIxUYHKkDx6Qin1DkWx51bBrb" crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/js/bootstrap.min.js" integrity="sha384-vBWWzlZJ8ea9aCX4pEW3rVHjgjt7zpkNpZk+02D9phzyeVkE+jo0ieGizqPLForn" crossorigin="anonymous"></script>
</body>
</html>
<!--
Copyright 2017 Google Inc. All Rights Reserved.
Use of this source code is governed by an MIT-style license that
can be found in the LICENSE file at http://angular.io/license
-->
/**
* WEB ANGULAR VERSION
* (based on systemjs.config.js in angular.io)
* System configuration for Angular samples
* Adjust as necessary for your application needs.
*/
(function (global) {
System.config({
// DEMO ONLY! REAL CODE SHOULD NOT TRANSPILE IN THE BROWSER
transpiler: 'ts',
typescriptOptions: {
// Copy of compiler options in standard tsconfig.json
"target": "es5",
"module": "commonjs",
"moduleResolution": "node",
"sourceMap": true,
"emitDecoratorMetadata": true,
"experimentalDecorators": true,
"lib": ["es2015", "dom"],
"noImplicitAny": true,
"suppressImplicitAnyIndexErrors": true
},
meta: {
'typescript': {
"exports": "ts"
}
},
paths: {
// paths serve as alias
'npm:': 'https://unpkg.com/'
},
// map tells the System loader where to look for things
map: {
// our app is within the app folder
'app': 'app',
// angular bundles
'@angular/animations': 'npm:@angular/animations/bundles/animations.umd.js',
'@angular/animations/browser': 'npm:@angular/animations/bundles/animations-browser.umd.js',
'@angular/core': 'npm:@angular/core/bundles/core.umd.js',
'@angular/common': 'npm:@angular/common/bundles/common.umd.js',
'@angular/common/http': 'npm:@angular/common/bundles/common-http.umd.js',
'@angular/compiler': 'npm:@angular/compiler/bundles/compiler.umd.js',
'@angular/platform-browser': 'npm:@angular/platform-browser/bundles/platform-browser.umd.js',
'@angular/platform-browser/animations': 'npm:@angular/platform-browser/bundles/platform-browser-animations.umd.js',
'@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic/bundles/platform-browser-dynamic.umd.js',
'@angular/http': 'npm:@angular/http/bundles/http.umd.js',
'@angular/router': 'npm:@angular/router/bundles/router.umd.js',
'@angular/router/upgrade': 'npm:@angular/router/bundles/router-upgrade.umd.js',
'@angular/forms': 'npm:@angular/forms/bundles/forms.umd.js',
'@angular/upgrade': 'npm:@angular/upgrade/bundles/upgrade.umd.js',
'@angular/upgrade/static': 'npm:@angular/upgrade/bundles/upgrade-static.umd.js',
// other libraries
'rxjs': 'npm:rxjs@5.5.2',
'rxjs/operators': 'npm:rxjs@5.5.2/operators/index.js',
'tslib': 'npm:tslib/tslib.js',
'angular-in-memory-web-api': 'npm:angular-in-memory-web-api@0.4/bundles/in-memory-web-api.umd.js',
'ts': 'npm:plugin-typescript@5.2.7/lib/plugin.js',
'typescript': 'npm:typescript@2.4.2/lib/typescript.js',
},
// packages tells the System loader how to load when no filename and/or no extension
packages: {
app: {
main: './main.ts',
defaultExtension: 'ts',
meta: {
'./*.ts': {
loader: 'systemjs-angular-loader.js'
}
}
},
rxjs: {
defaultExtension: 'js'
}
}
});
})(this);
/*
Copyright 2016 Google Inc. All Rights Reserved.
Use of this source code is governed by an MIT-style license that
can be found in the LICENSE file at http://angular.io/license
*/
var templateUrlRegex = /templateUrl\s*:(\s*['"`](.*?)['"`]\s*)/gm;
var stylesRegex = /styleUrls *:(\s*\[[^\]]*?\])/g;
var stringRegex = /(['`"])((?:[^\\]\\\1|.)*?)\1/g;
module.exports.translate = function(load){
if (load.source.indexOf('moduleId') != -1) return load;
var url = document.createElement('a');
url.href = load.address;
var basePathParts = url.pathname.split('/');
basePathParts.pop();
var basePath = basePathParts.join('/');
var baseHref = document.createElement('a');
baseHref.href = this.baseURL;
baseHref = baseHref.pathname;
if (!baseHref.startsWith('/base/')) { // it is not karma
basePath = basePath.replace(baseHref, '');
}
load.source = load.source
.replace(templateUrlRegex, function(match, quote, url){
var resolvedUrl = url;
if (url.startsWith('.')) {
resolvedUrl = basePath + url.substr(1);
}
return 'templateUrl: "' + resolvedUrl + '"';
})
.replace(stylesRegex, function(match, relativeUrls) {
var urls = [];
while ((match = stringRegex.exec(relativeUrls)) !== null) {
if (match[2].startsWith('.')) {
urls.push('"' + basePath + match[2].substr(1) + '"');
} else {
urls.push('"' + match[2] + '"');
}
}
return "styleUrls: [" + urls.join(', ') + "]";
});
return load;
};