Radio Group
Documentation
The RadioGroup is a widget that contains a set of radio buttons and allows an end user to make a single selection from the set. This demo illustrates how to change the widget layout, define a custom template and handle the value change event.
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<div class="form">
<div class="dx-fieldset">
<div class="dx-field">
<div class="dx-field-label">Default mode</div>
<div class="dx-field-value">
<dx-radio-group
[items]="priorities"
[value]="priorities[0]">
</dx-radio-group>
</div>
</div>
<div class="dx-field">
<div class="dx-field-label">Disabled</div>
<div class="dx-field-value">
<dx-radio-group
[items]="priorities"
[value]="priorities[1]"
[disabled]="true">
</dx-radio-group>
</div>
</div>
<div class="dx-field">
<div class="dx-field-label">Horizontal layout</div>
<div class="dx-field-value">
<dx-radio-group
[items]="priorities"
[value]="priorities[0]"
layout="horizontal">
</dx-radio-group>
</div>
</div>
<div class="dx-field">
<div class="dx-field-label">Custom item template</div>
<div class="dx-field-value">
<dx-radio-group
[items]="priorities"
[(value)]="priority"
[ngClass]="priority.toLowerCase()">
<div *dxTemplate="let priority of 'item'">
<div>{{priority}}</div>
</div>
</dx-radio-group>
</div>
</div>
<div class="dx-field">
<div class="dx-field-label">Event handling</div>
<div class="dx-field-value">
<dx-radio-group #eventRadioGroup
id="radio-group-with-selection"
[items]="priorities"
(onValueChanged)="onValueChanged($event)">
</dx-radio-group>
</div>
</div>
</div>
<div id="tasks-list">
Tasks by selected priority:
<ul id="list">
<li *ngFor="let data of currentData">
{{data}}
</li>
</ul>
</div>
</div>
import { NgModule, Component, ViewChild, enableProdMode } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { DxRadioGroupModule, DxRadioGroupComponent, DxTemplateModule } from 'devextreme-angular';
import data from "devextreme/data/array_store";
import { Service, Task } from './app.service';
if(!/localhost/.test(document.location.host)) {
enableProdMode();
}
@Component({
selector: 'demo-app',
providers: [Service],
templateUrl: 'app/app.component.html',
styleUrls: ['app/app.component.css']
})
export class AppComponent {
@ViewChild("eventRadioGroup") eventRadioGroup: DxRadioGroupComponent;
priorities: string[];
priority: string;
tasks: Task[];
data: any;
currentData: string[] = [];
constructor(service: Service) {
this.tasks = service.getTasks();
this.priorities = [
"Low",
"Normal",
"Urgent",
"High"
];
this.priority = this.priorities[2];
this.currentData[0] = this.tasks[1].subject;
}
ngOnInit() {
this.data = new data({
data: this.tasks,
key: "ID"
});
}
ngAfterViewInit(){
this.eventRadioGroup.instance.option("value", this.priorities[0]);
}
onValueChanged($event){
this.currentData = [];
this.tasks.forEach((item, index) => {
if(item.priority == $event.value) {
this.currentData.push(this.tasks[index].subject);
}
});
}
}
@NgModule({
imports: [
BrowserModule,
DxRadioGroupModule,
DxTemplateModule
],
declarations: [AppComponent],
bootstrap: [AppComponent]
})
export class AppModule { }
platformBrowserDynamic().bootstrapModule(AppModule);
::ng-deep .low .dx-radiobutton-checked .dx-radiobutton-icon .dx-radiobutton-icon-dot {
background: gray;
}
::ng-deep .normal .dx-radiobutton-checked .dx-radiobutton-icon .dx-radiobutton-icon-dot {
background: green;
}
::ng-deep .urgent .dx-radiobutton-checked .dx-radiobutton-icon .dx-radiobutton-icon-dot {
background: orange;
}
::ng-deep .high .dx-radiobutton-checked .dx-radiobutton-icon .dx-radiobutton-icon-dot {
background: red;
}
::ng-deep #radio-group-with-selection {
margin-bottom: 10px;
}
::ng-deep #tasks-list {
margin: 0 0 10px 10px;
white-space: normal;
}
::ng-deep #list {
margin: 10px 0 0 20px;
padding-left: 0;
text-align: left;
}
import { Injectable } from '@angular/core';
export class Task {
subject: string;
priority: string
}
let tasks: Task[] = [{
subject: "Choose between PPO and HMO Health Plan",
priority: "High"
}, {
subject: "Non-Compete Agreements",
priority: "Low"
}, {
subject: "Comment on Revenue Projections",
priority: "Normal"
}, {
subject: "Sign Updated NDA",
priority: "Urgent"
}, {
subject: "Submit Questions Regarding New NDA",
priority: "High"
}, {
subject: "Rollout of New Website and Marketing Brochures",
priority: "High"
}];
@Injectable()
export class Service {
getTasks(): Task[] {
return tasks;
}
}
// In real applications, you should not transpile code in the browser. You can see how to create your own application with Angular and DevExtreme here:
// https://github.com/DevExpress/devextreme-angular/blob/master/README.md
System.config({
transpiler: 'ts',
typescriptOptions: {
module: "commonjs",
emitDecoratorMetadata: true,
experimentalDecorators: true
},
meta: {
'typescript': {
"exports": "ts"
}
},
paths: {
'npm:': 'https://unpkg.com/'
},
map: {
'ts': 'npm:plugin-typescript@8.0.0/lib/plugin.js',
'typescript': 'npm:typescript@3.4.5/lib/typescript.js',
'@angular/core': 'npm:@angular/core@8.0.0/bundles/core.umd.js',
'@angular/common': 'npm:@angular/common@8.0.0/bundles/common.umd.js',
'@angular/compiler': 'npm:@angular/compiler@8.0.0/bundles/compiler.umd.js',
'@angular/platform-browser': 'npm:@angular/platform-browser@8.0.0/bundles/platform-browser.umd.js',
'@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic@8.0.0/bundles/platform-browser-dynamic.umd.js',
'@angular/router': 'npm:@angular/router@8.0.0/bundles/router.umd.js',
'@angular/forms': 'npm:@angular/forms@8.0.0/bundles/forms.umd.js',
'@angular/common/http': 'npm:@angular/common@8.0.0/bundles/common-http.umd.js',
'tslib': 'npm:tslib/tslib.js',
'rxjs': 'npm:rxjs@6.3.3',
'rxjs/operators': 'npm:rxjs@6.3.3/operators',
'devextreme': 'npm:devextreme@19.1',
'jszip': 'npm:jszip@3.1.3/dist/jszip.min.js',
'quill': 'npm:quill@1.3.6/dist/quill.js',
'devexpress-diagram': 'npm:devexpress-diagram',
'devextreme-angular': 'npm:devextreme-angular@19.1'
},
packages: {
'app': {
main: './app.component.ts',
defaultExtension: 'ts'
},
'devextreme': {
defaultExtension: 'js'
},
'rxjs': { main: 'index.js', defaultExtension: 'js' },
'rxjs/operators': { main: 'index.js', defaultExtension: 'js' },
'devextreme-angular': {
main: 'index.js',
defaultExtension: 'js'
}
}
});
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>DevExtreme Demo</title>
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/19.1.5/css/dx.common.css" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/19.1.5/css/dx.light.css" />
<script src="https://unpkg.com/core-js@2.4.1/client/shim.min.js"></script>
<script src="https://unpkg.com/zone.js@0.6.25/dist/zone.js"></script>
<script src="https://unpkg.com/reflect-metadata@0.1.3/Reflect.js"></script>
<script src="https://unpkg.com/systemjs@0.21.3/dist/system.js"></script>
<script src="config.js"></script>
<script>
System.import('app').catch(console.error.bind(console));
</script>
</head>
<body class="dx-viewport">
<div class="demo-container">
<demo-app>Loading...</demo-app>
</div>
</body>
</html>