Radio Group
Documentation
The RadioGroup is a UI component 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 component 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)]="colorPriority"
[ngClass]="colorPriority.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
id="radio-group-with-selection"
[items]="priorityEntities"
valueExpr="id"
displayExpr="text"
[(value)]="selectionPriorityId"
(onValueChanged)="onValueChanged($event)">
</dx-radio-group>
</div>
</div>
</div>
<div id="tasks-list">
Tasks by selected priority:
<ul id="list">
<li *ngFor="let data of currentData">
{{data}}
</li>
</ul>
</div>
</div>
import { NgModule, Component, enableProdMode } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { DxRadioGroupModule, DxTemplateModule } from 'devextreme-angular';
import { PriorityEntity, Service, Task } from './app.service';
if(!/localhost/.test(document.location.host)) {
enableProdMode();
}
@Component({
selector: 'demo-app',
providers: [Service],
templateUrl: 'app/app.component.html',
styleUrls: ['app/app.component.css']
})
export class AppComponent {
priorities: string[];
priorityEntities: PriorityEntity[];
selectionPriorityId: number;
colorPriority: string;
tasks: Task[];
currentData: string[] = [];
constructor(service: Service) {
this.tasks = service.getTasks();
this.priorities = [
"Low",
"Normal",
"Urgent",
"High"
];
this.priorityEntities = service.getPriorityEntities();
this.colorPriority = this.priorities[2];
this.currentData[0] = this.tasks[1].subject;
this.selectionPriorityId = this.priorityEntities[0].id;
}
onValueChanged($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: number;
}
export class PriorityEntity {
id: number;
text: string;
}
const priorityEntities: PriorityEntity[] = [
{ id: 0, text: "Low" },
{ id: 1, text: "Normal" },
{ id: 2, text: "Urgent" },
{ id: 3, text: "High" },
];
let tasks: Task[] = [{
subject: "Choose between PPO and HMO Health Plan",
priority: 3
}, {
subject: "Non-Compete Agreements",
priority: 0
}, {
subject: "Comment on Revenue Projections",
priority: 1
}, {
subject: "Sign Updated NDA",
priority: 2
}, {
subject: "Submit Questions Regarding New NDA",
priority: 3
}, {
subject: "Rollout of New Website and Marketing Brochures",
priority: 3
}];
@Injectable()
export class Service {
getTasks(): Task[] {
return tasks;
}
getPriorityEntities(): PriorityEntity[] {
return priorityEntities;
}
}
// 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://js.devexpress.com/Documentation/Guide/Angular_Components/Getting_Started/Create_a_DevExtreme_Application/
window.config = {
transpiler: 'ts',
typescriptOptions: {
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},
meta: {
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"exports": "ts"
},
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},
},
paths: {
'npm:': 'https://unpkg.com/'
},
map: {
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'typescript': 'npm:typescript@3.5.3/lib/typescript.js',
'@angular': 'npm:@angular',
'tslib': 'npm:tslib@2.3.1/tslib.js',
'rxjs': 'npm:rxjs@6.4.0',
'rrule': 'npm:rrule@2.6.6/dist/es5/rrule.js',
'luxon': 'npm:luxon@1.28.0/build/global/luxon.min.js',
'es6-object-assign': 'npm:es6-object-assign@1.1.0',
'devextreme': 'npm:devextreme@21.1.6/cjs',
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'jszip': 'npm:jszip@3.7.1/dist/jszip.min.js',
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'inferno': 'npm:inferno@7.4.10/dist/inferno.min.js',
'inferno-compat': 'npm:inferno-compat@7.4.10/dist/inferno-compat.min.js',
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'inferno-extras': 'npm:inferno-extras@7.4.10/dist/inferno-extras.min.js'
},
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main: './app.component.ts',
defaultExtension: 'ts'
},
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defaultExtension: 'js'
},
'@devextreme/vdom': {
defaultExtension: 'js'
},
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main: 'index'
},
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main: 'index'
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'es6-object-assign': {
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packageConfigPaths: [
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"npm:devextreme-angular/*/package.json",
"npm:devextreme-angular/ui/*/package.json",
"npm:devextreme-angular/package.json",
"npm:devexpress-diagram/package.json",
"npm:devexpress-gantt/package.json",
]
};
System.config(window.config);
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<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>DevExtreme Demo</title>
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
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<script>
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</script>
</head>
<body class="dx-viewport">
<div class="demo-container">
<demo-app>Loading...</demo-app>
</div>
</body>
</html>