Angular Diagram - Containers

This demo shows the Diagram component's capability to wrap shapes into containers. A container is a special shape with the following features:

A container can contain other shapes (including other containers).
A container is dragged with its content.
A container can be collapsed with a collapse button.

To wrap a shape, drop it into a container.

If you bind the Diagram to a data source, define the containerKeyExpr property to store information about the parent container in the data source. Otherwise, this information will be lost.

Backend API

<dx-diagram #diagram id="diagram"> <dxo-diagram-toolbox> <dxi-diagram-group category="general" title="General"></dxi-diagram-group> <dxi-diagram-group category="containers" title="Containers" [expanded]="true" ></dxi-diagram-group> </dxo-diagram-toolbox> </dx-diagram>

import { bootstrapApplication } from '@angular/platform-browser'; import { Component, ViewChild, enableProdMode, provideZoneChangeDetection } from '@angular/core'; import { HttpClient, provideHttpClient, withFetch } from '@angular/common/http'; import { DxDiagramModule, DxDiagramComponent } from 'devextreme-angular'; if (!/localhost/.test(document.location.host)) { enableProdMode(); } @Component({ selector: 'demo-app', templateUrl: './app.component.html', styleUrls: ['./app.component.css'], preserveWhitespaces: true, imports: [ DxDiagramModule, ], }) export class AppComponent { @ViewChild(DxDiagramComponent, { static: false }) diagram: DxDiagramComponent; constructor(http: HttpClient) { http.get('../../../../data/diagram-structure.json').subscribe({ next: (data) => { this.diagram.instance.import(JSON.stringify(data)); }, error: () => { throw new Error('Data Loading Error'); }, }); } } bootstrapApplication(AppComponent, { providers: [ provideZoneChangeDetection({ eventCoalescing: true, runCoalescing: true }), provideHttpClient(withFetch()), ], });

::ng-deep #diagram { height: 725px; }

<!DOCTYPE html> <html 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/26.1.5/css/dx.light.css" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/26.1.5/css/dx-diagram.min.css" /> </head> <body class="dx-viewport"> <div class="demo-container"> <demo-app>Loading...</demo-app> </div> <script src="https://cdn.jsdelivr.net/npm/zone.js@0.16.2/bundles/zone.umd.js"></script> <script src="./bundle.js" type="module"></script> </body> </html>

{ "page": { "width": 11910, "height": 8400, "pageColor": "white", "pageWidth": 8400, "pageHeight": 11910, "pageLandscape": true, "units": 0 }, "connectors": [], "shapes": [ { "key": "0", "locked": false, "zIndex": 0, "type": "verticalContainer", "text": "Development", "x": 720, "y": 720, "width": 10440.000000000002, "height": 7020, "childKeys": [ "1", "2", "4", "3" ] }, { "key": "1", "locked": false, "zIndex": 0, "type": "verticalContainer", "text": "ASP.NET Team", "x": 1080, "y": 1440, "width": 2160, "height": 5760, "childKeys": [ "5", "6" ] }, { "key": "2", "locked": false, "zIndex": 0, "type": "verticalContainer", "text": "Javascript Team", "x": 3600, "y": 1440, "width": 2160, "height": 5760, "childKeys": [ "7", "8" ] }, { "key": "3", "locked": false, "zIndex": 0, "type": "verticalContainer", "text": "WPF Team", "x": 6120, "y": 1440, "width": 2160, "height": 5760, "childKeys": [ "9", "10", "11" ] }, { "key": "4", "locked": false, "zIndex": 0, "type": "verticalContainer", "text": "WinForms Team", "x": 8640, "y": 1440, "width": 2160, "height": 5760, "childKeys": [ "12", "13" ] }, { "key": "5", "dataKey": "119", "locked": false, "zIndex": 0, "type": "rectangle", "text": "Laurence\nLebihan", "x": 1440, "y": 2160, "width": 1440, "height": 1080 }, { "key": "6", "dataKey": "120", "locked": false, "zIndex": 0, "type": "rectangle", "text": "Elizabeth\nLincoln", "x": 1440, "y": 3600, "width": 1440, "height": 1080 }, { "key": "7", "dataKey": "122", "locked": false, "zIndex": 0, "type": "rectangle", "text": "Patricio\nSimpson", "x": 3960, "y": 2160, "width": 1440, "height": 1080 }, { "key": "8", "dataKey": "123", "locked": false, "zIndex": 0, "type": "rectangle", "text": "Francisco\nChang", "x": 3960, "y": 3600, "width": 1440, "height": 1080 }, { "key": "9", "dataKey": "115", "locked": false, "zIndex": 0, "type": "rectangle", "text": "Christina\nBerglund", "x": 6480, "y": 2160, "width": 1440, "height": 1080 }, { "key": "10", "dataKey": "116", "locked": false, "zIndex": 0, "type": "rectangle", "text": "Hanna\nMoos", "x": 6480, "y": 3600, "width": 1440, "height": 1080 }, { "key": "11", "dataKey": "117", "locked": false, "zIndex": 0, "type": "rectangle", "text": "Frederique\nCiteaux", "x": 6480, "y": 5040, "width": 1440, "height": 1080 }, { "key": "12", "dataKey": "112", "locked": false, "zIndex": 0, "type": "rectangle", "text": "Ana\nTrujillo", "x": 9000, "y": 2160, "width": 1440, "height": 1080 }, { "key": "13", "dataKey": "113", "locked": false, "zIndex": 0, "type": "rectangle", "text": "Antonio\nMoreno", "x": 9000, "y": 3600, "width": 1440, "height": 1080 } ] }