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Accordion

Accordion

The Accordion component contains several panels displayed one under another. Users can expand or collapse these panels, which makes this component useful to present information in a limited amount of space.

Bind Accordion to Data

You can display Accordion items from the items array or a dataSource. If you use the items array, specify the title and text properties.

Configure Item Selection and Collapsibility

Enable the multiple property to allow users to select multiple panels. Use the selectedItems array to store selected items. Toggle the "Multiple enabled" checkbox in the Options demo section to see how it affects the selection.

If you want to allow users to close panels on click, set the collapsible property to true. Check the "Collapsible enabled" checkbox in the Options demo section to enable this feature.

Configure Animation

The animationDuration property allows you to specify the animation duration when users expand/collapse a panel. Use the "Animation duration" slider in the Options demo section to see how it affects the animation.

Customize Item Appearance

Use the itemTemplate and itemTitleTemplate properties to customize the panel appearance. If you use the items array, you can also specify the icon property.

Backend API
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<div id="accordion"> <dx-accordion #accordion [dataSource]="companies" [collapsible]="false" [multiple]="false" [animationDuration]="300" [selectedItems]="[companies[0]]" id="accordion-container" > <div *dxTemplate="let company of 'title'"> <h1>{{ company.CompanyName }}</h1> </div> <div *dxTemplate="let company of 'item'"> <div> <p> <b>{{ company.City }}</b> (<span>{{ company.State }}</span >) </p> <p> <span>{{ company.Zipcode }}</span> <span>{{ company.Address }}</span> </p> </div> <div> <p> Phone: <b>{{ company.Phone }}</b> </p> <p> Fax: <b>{{ company.Fax }}</b> </p> <p> Website: <a href="{{ company.Website }}" target="_blank"> {{ company.Website }} </a> </p> </div> </div> </dx-accordion> <div class="options"> <div class="caption">Options</div> <div class="option"> <dx-check-box text="Multiple enabled" [(value)]="accordion.multiple" ></dx-check-box> </div> <div class="option"> <dx-check-box text="Collapsible enabled" [(value)]="accordion.collapsible" ></dx-check-box> </div> <div class="option"> <span>Animation duration</span> <dx-slider [min]="0" [max]="1000" [(value)]="accordion.animationDuration"> <dxo-tooltip [enabled]="true" position="bottom"></dxo-tooltip> <dxo-label [visible]="true"></dxo-label> </dx-slider> </div> <div class="option"> <span class="caption">Selected Items</span> <dx-tag-box [dataSource]="companies" displayExpr="CompanyName" [(value)]="accordion.selectedItems" [disabled]="!accordion.multiple" ></dx-tag-box> </div> </div> </div>
import { NgModule, Component, enableProdMode } from '@angular/core'; import { BrowserModule } from '@angular/platform-browser'; import { platformBrowserDynamic } from '@angular/platform-browser-dynamic'; import { DxAccordionModule, DxCheckBoxModule, DxSliderModule, DxTagBoxModule, DxTemplateModule, } from 'devextreme-angular'; import { Company, Service } from './app.service'; if (!/localhost/.test(document.location.host)) { enableProdMode(); } @Component({ selector: 'demo-app', templateUrl: 'app/app.component.html', styleUrls: ['app/app.component.css'], providers: [Service], preserveWhitespaces: true, }) export class AppComponent { companies: Company[]; constructor(service: Service) { this.companies = service.getCompanies(); } } @NgModule({ imports: [ BrowserModule, DxAccordionModule, DxCheckBoxModule, DxSliderModule, DxTagBoxModule, DxTemplateModule, ], declarations: [AppComponent], bootstrap: [AppComponent], }) export class AppModule { } platformBrowserDynamic().bootstrapModule(AppModule);
::ng-deep #accordion { height: 700px; } ::ng-deep #accordion h1 { font-size: 20px; } ::ng-deep #accordion h1, ::ng-deep #accordion p { margin: 0; } ::ng-deep #accordion-container { margin-right: 400px; } ::ng-deep .dx-theme-material #accordion .dx-accordion-item-title { display: flex; } ::ng-deep .dx-theme-material #accordion h1 { align-self: center; } ::ng-deep .options { padding: 20px; position: absolute; bottom: 0; right: 0; width: 340px; top: 0; background-color: rgba(191, 191, 191, 0.15); } ::ng-deep .options > .caption { font-weight: 500; font-size: 18px; } ::ng-deep .option { margin-top: 10px; } ::ng-deep .option > .caption { margin-top: 10px; display: inline-block; } ::ng-deep .option > .dx-tagbox { margin-top: 2px; }
import { Injectable } from '@angular/core'; export class Company { ID: number; CompanyName: string; Address: string; City: string; State: string; Zipcode: number; Phone: string; Fax: string; Website: string; } const companies: Company[] = [{ ID: 1, CompanyName: 'Super Mart of the West', Address: '702 SW 8th Street', City: 'Bentonville', State: 'Arkansas', Zipcode: 72716, Phone: '(800) 555-2797', Fax: '(800) 555-2171', Website: 'http://www.nowebsitesupermart.com', }, { ID: 2, CompanyName: 'Electronics Depot', Address: '2455 Paces Ferry Road NW', City: 'Atlanta', State: 'Georgia', Zipcode: 30339, Phone: '(800) 595-3232', Fax: '(800) 595-3231', Website: 'http://www.nowebsitedepot.com', }, { ID: 3, CompanyName: 'K&S Music', Address: '1000 Nicllet Mall', City: 'Minneapolis', State: 'Minnesota', Zipcode: 55403, Phone: '(612) 304-6073', Fax: '(612) 304-6074', Website: 'http://www.nowebsitemusic.com', }, { ID: 4, CompanyName: "Tom's Club", Address: '999 Lake Drive', City: 'Issaquah', State: 'Washington', Zipcode: 98027, Phone: '(800) 955-2292', Fax: '(800) 955-2293', Website: 'http://www.nowebsitetomsclub.com', }]; @Injectable() export class Service { getCompanies(): Company[] { return companies; } }
// 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: { module: 'system', emitDecoratorMetadata: true, experimentalDecorators: true, }, meta: { 'typescript': { 'exports': 'ts', }, 'devextreme/localization.js': { 'esModule': true, }, }, paths: { 'npm:': 'https://unpkg.com/', }, map: { 'ts': 'npm:plugin-typescript@4.2.4/lib/plugin.js', 'typescript': 'npm:typescript@4.2.4/lib/typescript.js', '@angular/core': 'npm:@angular/core@12.2.16', '@angular/platform-browser': 'npm:@angular/platform-browser@12.2.16', '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic@12.2.16', '@angular/forms': 'npm:@angular/forms@12.2.16', '@angular/common': 'npm:@angular/common@12.2.16', '@angular/compiler': 'npm:@angular/compiler@12.2.16', 'tslib': 'npm:tslib@2.3.1/tslib.js', 'rxjs': 'npm:rxjs@7.5.3/dist/bundles/rxjs.umd.js', 'rxjs/operators': 'npm:rxjs@7.5.3/dist/cjs/operators/index.js', 'rrule': 'npm:rrule@2.6.4/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@22.1.4/cjs', 'devextreme/bundles/dx.all': 'npm:devextreme@22.1.4/bundles/dx.all.js', 'jszip': 'npm:jszip@3.7.1/dist/jszip.min.js', 'devextreme-quill': 'npm:devextreme-quill@1.5.16/dist/dx-quill.min.js', 'devexpress-diagram': 'npm:devexpress-diagram@2.1.63', 'devexpress-gantt': 'npm:devexpress-gantt@4.1.32', 'devextreme-angular': 'npm:devextreme-angular@22.1.4', '@devextreme/runtime': 'npm:@devextreme/runtime@3.0.7', 'inferno': 'npm:inferno@7.4.4/dist/inferno.min.js', 'inferno-compat': 'npm:inferno-compat@7.4.11/dist/inferno-compat.min.js', 'inferno-create-element': 'npm:inferno-create-element@7.4.11/dist/inferno-create-element.min.js', 'inferno-dom': 'npm:inferno-dom/dist/inferno-dom.min.js', 'inferno-hydrate': 'npm:inferno-hydrate@7.4.11/dist/inferno-hydrate.min.js', 'inferno-clone-vnode': 'npm:inferno-clone-vnode@7.4.11/dist/inferno-clone-vnode.min.js', 'inferno-create-class': 'npm:inferno-create-class@7.4.11/dist/inferno-create-class.min.js', 'inferno-extras': 'npm:inferno-extras@7.4.11/dist/inferno-extras.min.js', }, packages: { 'app': { main: './app.component.ts', defaultExtension: 'ts', }, 'devextreme': { defaultExtension: 'js', }, 'devextreme/events/utils': { main: 'index', }, 'devextreme/events': { main: 'index', }, 'es6-object-assign': { main: './index.js', defaultExtension: 'js', }, 'rxjs': { defaultExtension: 'js', }, 'rxjs/operators': { defaultExtension: 'js', }, }, packageConfigPaths: [ 'npm:@devextreme/*/package.json', 'npm:@devextreme/runtime@3.0.7/inferno/package.json', 'npm:@angular/*/package.json', 'npm:@angular/common@12.2.16/*/package.json', 'npm:rxjs@7.5.3/package.json', 'npm:rxjs@7.5.3/operators/package.json', 'npm:devextreme-angular@22.1.4/*/package.json', 'npm:devextreme-angular@22.1.4/ui/*/package.json', 'npm:devextreme-angular@22.1.4/package.json', 'npm:devexpress-diagram@2.1.63/package.json', 'npm:devexpress-gantt@4.1.32/package.json', ], }; System.config(window.config);
<!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/22.1.4/css/dx.common.css" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/22.1.4/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@0.11.4/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>