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Angular Data Grid - Master-Detail API

DataGrid API allows you to implement custom expand/collapse logic for master-detail rows. This example uses the expandRow(key) and collapseAll(groupIndex) methods inside the onSelectionChanged event handler to allow you to expand only one row at a time.

Backend API
<dx-data-grid id="gridContainer" keyExpr="ID" [dataSource]="employees" (onSelectionChanged)="onSelectionChanged($event)" (onContentReady)="onContentReady($event)" [showBorders]="true" > <dxo-selection mode="single"></dxo-selection> <dxo-master-detail [enabled]="false" template="detail"></dxo-master-detail> <dxi-column dataField="Prefix" [width]="70" caption="Title"></dxi-column> <dxi-column dataField="FirstName"></dxi-column> <dxi-column dataField="LastName"></dxi-column> <dxi-column dataField="Position" [width]="170"></dxi-column> <dxi-column dataField="State" [width]="125"></dxi-column> <dxi-column dataField="BirthDate" dataType="date"></dxi-column> <div *dxTemplate="let employee of 'detail'"> <div class="employeeInfo"> <img class="employeePhoto" alt="Employee photo" [src]="employee.data.Picture" /> <p class="employeeNotes">{{ employee.data.Notes }}</p> </div> </div> </dx-data-grid>
import { NgModule, Component, enableProdMode } from '@angular/core'; import { BrowserModule } from '@angular/platform-browser'; import { platformBrowserDynamic } from '@angular/platform-browser-dynamic'; import { DxTemplateModule } from 'devextreme-angular'; import { DxDataGridModule, DxDataGridTypes } from 'devextreme-angular/ui/data-grid'; import { Employee, 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], }) export class AppComponent { employees: Employee[]; constructor(service: Service) { this.employees = service.getEmployees(); } onContentReady(e: DxDataGridTypes.ContentReadyEvent) { if (!e.component.getSelectedRowKeys().length) { e.component.selectRowsByIndexes([0]); } } onSelectionChanged(e: DxDataGridTypes.SelectionChangedEvent) { e.component.collapseAll(-1); e.component.expandRow(e.currentSelectedRowKeys[0]); } } @NgModule({ imports: [ BrowserModule, DxDataGridModule, DxTemplateModule, ], declarations: [AppComponent], bootstrap: [AppComponent], }) export class AppModule { } platformBrowserDynamic().bootstrapModule(AppModule);
::ng-deep #gridContainer { height: 440px; } ::ng-deep #gridContainer .dx-datagrid-content tr.dx-data-row { cursor: pointer; } ::ng-deep .employeeInfo .employeePhoto { height: 140px; float: left; padding: 20px 20px 20px 0; } ::ng-deep .employeeInfo .employeeNotes { padding-top: 20px; text-align: justify; white-space: normal; }
import { Injectable } from '@angular/core'; export class Employee { ID: number; FirstName: string; LastName: string; Prefix: string; Position: string; Picture: string; BirthDate: string; HireDate: string; Notes: string; Address: string; State: string; City: string; } const employees: Employee[] = [{ ID: 1, FirstName: 'John', LastName: 'Heart', Prefix: 'Mr.', Position: 'CEO', Picture: '../../../../images/employees/01.png', BirthDate: '1964/03/16', HireDate: '1995/01/15', Notes: 'John has been in the Audio/Video industry since 1990. He has led DevAv as its CEO since 2003. When not working hard as the CEO, John loves to golf and bowl. He once bowled a perfect game of 300.', Address: '351 S Hill St.', State: 'California', City: 'Los Angeles', }, { ID: 2, FirstName: 'Olivia', LastName: 'Peyton', Prefix: 'Mrs.', Position: 'Sales Assistant', Picture: '../../../../images/employees/09.png', BirthDate: '1981/06/03', HireDate: '2012/05/14', Notes: 'Olivia loves to sell. She has been selling DevAV products since 2012. Olivia was homecoming queen in high school. She is expecting her first child in 6 months. Good Luck Olivia.', Address: '807 W Paseo Del Mar', State: 'California', City: 'Los Angeles', }, { ID: 3, FirstName: 'Robert', LastName: 'Reagan', Prefix: 'Mr.', Position: 'CMO', Picture: '../../../../images/employees/03.png', BirthDate: '1974/09/07', HireDate: '2002/11/08', Notes: 'Robert was recently voted the CMO of the year by CMO Magazine. He is a proud member of the DevAV Management Team. Robert is a championship BBQ chef, so when you get the chance ask him for his secret recipe.', Address: '4 Westmoreland Pl.', State: 'Arkansas', City: 'Bentonville', }, { ID: 4, FirstName: 'Greta', LastName: 'Sims', Prefix: 'Ms.', Position: 'HR Manager', Picture: '../../../../images/employees/04.png', BirthDate: '1977/11/22', HireDate: '1998/04/23', Notes: "Greta has been DevAV's HR Manager since 2003. She joined DevAV from Sonee Corp. Greta is currently training for the NYC marathon. Her best marathon time is 4 hours. Go Greta.", Address: '1700 S Grandview Dr.', State: 'Georgia', City: 'Atlanta', }, { ID: 5, FirstName: 'Brett', LastName: 'Wade', Prefix: 'Mr.', Position: 'IT Manager', Picture: '../../../../images/employees/05.png', BirthDate: '1968/12/01', HireDate: '2009/03/06', Notes: 'Brett came to DevAv from Microsoft and has led our IT department since 2012. When he is not working hard for DevAV, he coaches Little League (he was a high school pitcher).', Address: '1120 Old Mill Rd.', State: 'Idaho', City: 'Boise', }, { ID: 6, FirstName: 'Sandra', LastName: 'Johnson', Prefix: 'Mrs.', Position: 'Controller', Picture: '../../../../images/employees/06.png', BirthDate: '1974/11/15', HireDate: '2005/05/11', Notes: "Sandra is a CPA and has been our controller since 2008. She loves to interact with staff so if you've not met her, be certain to say hi. Sandra has 2 daughters both of whom are accomplished gymnasts.", Address: '4600 N Virginia Rd.', State: 'Utah', City: 'Beaver', }, { ID: 7, FirstName: 'Kevin', LastName: 'Carter', Prefix: 'Mr.', Position: 'Shipping Manager', Picture: '../../../../images/employees/07.png', BirthDate: '1978/01/09', HireDate: '2009/08/11', Notes: 'Kevin is our hard-working shipping manager and has been helping that department work like clockwork for 18 months. When not in the office, he is usually on the basketball court playing pick-up games.', Address: '424 N Main St.', State: 'California', City: 'San Diego', }, { ID: 8, FirstName: 'Cynthia', LastName: 'Stanwick', Prefix: 'Ms.', Position: 'HR Assistant', Picture: '../../../../images/employees/08.png', BirthDate: '1985/06/05', HireDate: '2008/03/24', Notes: 'Cindy joined us in 2008 and has been in the HR department for 2 years. She was recently awarded employee of the month. Way to go Cindy!', Address: '2211 Bonita Dr.', State: 'Arkansas', City: 'Little Rock', }, { ID: 9, FirstName: 'Kent', LastName: 'Samuelson', Prefix: 'Dr.', Position: 'Ombudsman', Picture: '../../../../images/employees/02.png', BirthDate: '1972/09/11', HireDate: '2009/04/22', Notes: 'As our ombudsman, Kent is on the front-lines solving customer problems and helping our partners address issues out in the field. He is a classically trained musician and is a member of the Chamber Orchestra.', Address: '12100 Mora Dr', State: 'Missouri', City: 'St. Louis', }]; @Injectable() export class Service { getEmployees() { return employees; } }
// 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@link:../../packages/devextreme/artifacts/npm/devextreme/cjs', '@devextreme/runtime': 'npm:@devextreme/runtime@3.0.12', 'devextreme/bundles/dx.all': 'npm:devextreme@link:../../packages/devextreme/artifacts/npm/devextreme/bundles/dx.all.js', 'devextreme-quill': 'npm:devextreme-quill@1.7.1/dist/dx-quill.min.js', 'devexpress-diagram': 'npm:devexpress-diagram@2.2.5', 'devexpress-gantt': 'npm:devexpress-gantt@4.1.54', /* 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@2.2.5/package.json', 'npm:devexpress-gantt@4.1.54/package.json', ], }; System.config(window.config); // System.import('@angular/compiler').catch(console.error.bind(console));
<!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml" lang="en"> <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=5.0" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/24.2.3/css/dx.light.css" /> <script src="https://unpkg.com/core-js@2.6.12/client/shim.min.js"></script> <script src="https://unpkg.com/zone.js@0.14.10/bundles/zone.umd.js"></script> <script src="https://unpkg.com/reflect-metadata@0.1.13/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>