DevExtreme Accessibility Compliance
DevExtreme component libraries meet a variety of WCAG and Section 508 compliance standards. To assess this demo’s accessibility level, click the Run AXE® Validation button to launch the AXE® web accessibility evaluation tool.
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Backend API
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<div class="header">John Heart</div><dx-button text="Load Data" (onClick)="showLoadPanel()"> </dx-button><div id="employee"> <p> Birth date: <b>{{ employeeInfo?.Birth_Date }}</b> </p> <p class="address"> Address:<br /> <b>{{ employeeInfo.City }}</b ><br /> <span>{{ employeeInfo?.Zipcode }}</span> <span>{{ employeeInfo?.Address }}</span> </p> <p> Phone: <b>{{ employeeInfo?.Mobile_Phone }}</b ><br /> Email: <b>{{ employeeInfo?.Email }}</b> </p></div><dx-load-panel #loadPanel shadingColor="rgba(0,0,0,0.4)" [position]="{ of: '#employee' }" [(visible)]="loadingVisible" [showIndicator]="true" [showPane]="true" [shading]="true" [hideOnOutsideClick]="false" (onShown)="onShown()" (onHidden)="onHidden()"></dx-load-panel><div class="options"> <div class="caption">Options</div> <div class="option"> <dx-check-box text="With indicator" [(value)]="loadPanel.showIndicator"> </dx-check-box> </div> <div class="option"> <dx-check-box text="With overlay" [(value)]="loadPanel.shading"> </dx-check-box> </div> <div class="option"> <dx-check-box text="With pane" [(value)]="loadPanel.showPane"> </dx-check-box> </div> <div class="option"> <dx-check-box text="Hide on outside click" [(value)]="loadPanel.hideOnOutsideClick" > </dx-check-box> </div></div>xxxxxxxxxximport { NgModule, Component, enableProdMode } from '@angular/core';import { BrowserModule } from '@angular/platform-browser';import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';import { DxButtonModule, DxLoadPanelModule, DxCheckBoxModule } from 'devextreme-angular';import { Employee, Service } from './app.service';if (!/localhost/.test(document.location.host)) { enableProdMode();}let modulePrefix = '';// @ts-ignoreif (window && window.config?.packageConfigPaths) { modulePrefix = '/app';}@Component({ selector: 'demo-app', providers: [Service], templateUrl: `app/app.component.html`, styleUrls: [`app/app.component.css`], preserveWhitespaces: true,})export class AppComponent { employee: Employee; employeeInfo = new Employee(); loadingVisible = false; constructor(service: Service) { this.employee = service.getEmployee(); } onShown() { setTimeout(() => { this.loadingVisible = false; }, 3000); } onHidden() { this.employeeInfo = this.employee; } showLoadPanel() { this.employeeInfo = new Employee(); this.loadingVisible = true; }}@NgModule({ imports: [ BrowserModule, DxButtonModule, DxLoadPanelModule, DxCheckBoxModule, ], declarations: [AppComponent], bootstrap: [AppComponent],})export class AppModule {}platformBrowserDynamic().bootstrapModule(AppModule);xxxxxxxxxx.header { font-size: 34px; display: inline-block; vertical-align: middle; padding: 10px; margin: 0;}#employee { margin: 20px 0; touch-callout: none; user-select: none; user-select: none; user-select: none; user-select: none; user-select: none; border-top: 1px solid lightgray; border-bottom: 1px solid lightgray;}#employee > p { padding: 10px 20px; margin: 0;}.address { height: 60px;}.options { padding: 20px; background-color: rgba(191, 191, 191, 0.15); margin-top: 20px;}.caption { font-size: 18px; font-weight: 500;}.option { margin-top: 10px;}xxxxxxxxxximport { Injectable } from '@angular/core';export class Employee { Full_Name: string; Title: string; Birth_Date: string; Prefix: string; Address: string; City: string; Zipcode: number; Email: string; Skype: string; Home_Phone: string; Mobile_Phone: string;}const employee: Employee = { Full_Name: 'John Heart', Title: 'CEO', Birth_Date: '03/16/1964', Prefix: 'Mr.', Address: '351 S Hill St.', City: 'Los Angeles', Zipcode: 90013, Email: 'jheart@dx-email.com', Skype: 'jheart_DX_skype', Home_Phone: '(213) 555-9208', Mobile_Phone: '(213) 555-9392',};@Injectable()export class Service { getEmployee() : Employee { return employee; }}xxxxxxxxxx// 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/const componentNames = [ 'accordion', 'action-sheet', 'autocomplete', 'bar-gauge', 'box', 'bullet', 'button-group', 'button', 'calendar', 'chart', 'chat', 'check-box', 'circular-gauge', 'color-box', 'context-menu', 'data-grid', 'date-box', 'date-range-box', 'defer-rendering', 'diagram', 'draggable', 'drawer', 'drop-down-box', 'drop-down-button', 'file-manager', 'file-uploader', 'filter-builder', 'form', 'funnel', 'gallery', 'gantt', 'html-editor', 'linear-gauge', 'list', 'load-indicator', 'load-panel', 'lookup', 'map', 'menu', 'multi-view', 'nested', 'number-box', 'pagination', 'pie-chart', 'pivot-grid-field-chooser', 'pivot-grid', 'polar-chart', 'popover', 'popup', 'progress-bar', 'radio-group', 'range-selector', 'range-slider', 'recurrence-editor', 'resizable', 'responsive-box', 'sankey', 'scheduler', 'scroll-view', 'select-box', 'slider', 'sortable', 'sparkline', 'speed-dial-action', 'splitter', 'switch', 'tab-panel', 'tabs', 'tag-box', 'text-area', 'text-box', 'tile-view', 'toast', 'toolbar', 'tooltip', 'tree-list', 'tree-map', 'tree-view', 'validation-group', 'validation-summary', 'validator', 'vector-map',];window.exports = window.exports || {};window.config = { transpiler: 'ts', typescriptOptions: { module: 'system', emitDecoratorMetadata: true, experimentalDecorators: true, }, meta: { 'typescript': { 'exports': 'ts', }, 'devextreme/time_zone_utils.js': { 'esModule': true, }, 'devextreme/localization.js': { 'esModule': true, }, 'devextreme/viz/palette.js': { 'esModule': true, }, '@angular/platform-browser-dynamic': { 'esModule': true, }, '@angular/platform-browser': { 'esModule': true, }, '@angular/core': { 'esModule': true, }, '@angular/common': { 'esModule': true, }, '@angular/common/http': { 'esModule': true, }, '@angular/animations': { 'esModule': true, }, '@angular/forms': { 'esModule': true, }, 'openai': { 'esModule': true, }, }, paths: { 'npm:': 'https://unpkg.com/', 'bundles:': 'bundles/', 'externals:': 'bundles/externals/', }, map: { 'ts': 'npm:plugin-typescript@8.0.0/lib/plugin.js', 'typescript': 'npm:typescript@4.2.4/lib/typescript.js', 'jszip': 'npm:jszip@3.10.1/dist/jszip.min.js', /* @angular */ '@angular/compiler': 'bundles:@angular/compiler.umd.js', '@angular/platform-browser-dynamic': 'bundles:@angular/platform-browser-dynamic.umd.js', '@angular/core': 'bundles:@angular/core.umd.js', '@angular/core/primitives/signals': 'bundles:@angular/core.primitives.signals.umd.js', '@angular/common': 'bundles:@angular/common.umd.js', '@angular/common/http': 'bundles:@angular/common-http.umd.js', '@angular/platform-browser': 'bundles:@angular/platform-browser.umd.js', '@angular/platform-browser/animations': 'bundles:@angular/platform-browser.umd.js', '@angular/forms': 'bundles:@angular/forms.umd.js', /* devextreme */ 'devextreme': 'npm:devextreme@24.2.6/cjs', '@devextreme/runtime': 'npm:@devextreme/runtime@3.0.12', 'devextreme/bundles/dx.all': 'npm:devextreme@24.2.6/bundles/dx.all.js', 'devextreme-quill': 'npm:devextreme-quill@1.7.1/dist/dx-quill.min.js', 'devexpress-diagram': 'npm:devexpress-diagram@2.2.15', 'devexpress-gantt': 'npm:devexpress-gantt@4.1.60', /* devextreme-angular umd maps */ 'devextreme-angular': 'bundles:devextreme-angular/devextreme-angular.umd.js', 'devextreme-angular/core': 'bundles:devextreme-angular/devextreme-angular-core.umd.js', 'devextreme-angular/http': 'bundles:devextreme-angular/devextreme-angular-http.umd.js', componentNames.reduce((acc, name) => { acc[`devextreme-angular/ui/${name}`] = `bundles:devextreme-angular/devextreme-angular-ui-${name}.umd.js`; acc[`devextreme-angular/ui/${name}/nested`] = `bundles:devextreme-angular/devextreme-angular-ui-${name}-nested.umd.js`; return acc; }, {}), 'tslib': 'npm:tslib/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@3.4.4/build/global/luxon.min.js', 'es6-object-assign': 'npm:es6-object-assign', 'inferno': 'npm:inferno@7.4.11/dist/inferno.min.js', 'inferno-compat': 'npm:inferno-compat/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/dist/inferno-hydrate.min.js', 'inferno-clone-vnode': 'npm:inferno-clone-vnode/dist/inferno-clone-vnode.min.js', 'inferno-create-class': 'npm:inferno-create-class/dist/inferno-create-class.min.js', 'inferno-extras': 'npm:inferno-extras/dist/inferno-extras.min.js', // Prettier 'prettier/standalone': 'npm:prettier@2.8.8/standalone.js', 'prettier/parser-html': 'npm:prettier@2.8.8/parser-html.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@3.0.12/inferno/package.json', 'npm:rxjs@7.5.3/package.json', 'npm:rxjs@7.5.3/operators/package.json', 'npm:devexpress-diagram@2.2.15/package.json', 'npm:devexpress-gantt@4.1.60/package.json', ],};System.config(window.config);// System.import('@angular/compiler').catch(console.error.bind(console));xxxxxxxxxx<html xmlns="http://www.w3.org/1999/xhtml" lang="en"> <head></head> <body class="dx-viewport"> <div class="demo-container"> <demo-app>Loading...</demo-app> </div> </body></html>Show and Hide the Indicator and Pane
LoadPanel elements (a message and an animated load indicator) are displayed on a pane. If you want to hide it, set the showPane property to false. You can also disable the showIndicator property to hide the animated load indicator. In this case, the LoadPanel displays only the message. In this demo, you can use the "With indicator" and "With pane" checkboxes to change the visibility of the load indicator and pane.
Configure the Background Shade
When LoadPanel is displayed, it shades the background. Use the shadingColor property to specify the color of the shade. You can also specify the element that should be shaded. For this, assign the element's CSS selector to the container property. If you do not want to shade the background, disable the shading property. In this demo, you can uncheck the "With overlay" checkbox to do it.
Show and Hide LoadPanel
To change the LoadPanel visibility in code, use the visible property. Alternatively, you can call the show() and hide() or toggle(showing) methods.
Users can hide LoadPanel when they click outside it if you enable the hideOnOutsideClick property. Use the "Hide on outside click" checkbox to control this functionality in this demo.
LoadPanel also allows you to handle the show and hide events. Use the onShowing and onHiding functions to handle the events before they occur and possibily cancel them. Use the onShown and onHidden functions to perform required actions after the events are raised.