TreeGrid (Angular)

Build powerful TreeGrids in JavaScript with FlexGrid. If your data items contain collections of child items, you may use FlexGrid's childItemsPath to show the data as a TreeGrid. For example, consider a list of 'person' objects which have a 'children' property. The 'children' property contains an array of more person objects. This is sometimes called a homogeneous hierarchy. The TreeGrid below was built by binding the grid to the top-level persons list and setting the childItemsPath property to 'children':

Learn about TreeGrid | TreeGrid with childItemsPath Documentation | FlexGrid API Reference

This example uses Angular.

import 'bootstrap.css'; import '@mescius/wijmo.styles/wijmo.css'; import './styles.css'; // import * as wjGrid from '@mescius/wijmo.grid'; import '@angular/compiler'; import { Component, Inject, enableProdMode, ViewChild, AfterViewInit, ɵresolveComponentResources } from '@angular/core'; import { BrowserModule, bootstrapApplication } from '@angular/platform-browser'; import { WjGridModule } from '@mescius/wijmo.angular2.grid'; import { DataService } from './app.data'; // @Component({ standalone: true, providers: [DataService], imports: [WjGridModule, BrowserModule], selector: 'app-component', templateUrl: 'src/app.component.html' }) export class AppComponent implements AfterViewInit { @ViewChild('familyGrid', { static: true }) familyGrid: wjGrid.FlexGrid; family: any; workers: any; // DataSvc will be passed by derived classes constructor(@Inject(DataService) private dataService: DataService) { this.family = dataService.getFamilies(); this.workers = dataService.getWorkers(); } // ngAfterViewInit() { this.familyGrid.columns[0].width = "*"; } // onAsTreeClick(e:MouseEvent) { this.familyGrid.childItemsPath = (<HTMLInputElement>e.target).checked ? 'children' : ''; } } //\\ // enableProdMode(); // Resolve resources (templateUrl, styleUrls etc), After resolution all URLs have been converted into `template` strings. ɵresolveComponentResources(fetch).then(() => { // Bootstrap application bootstrapApplication(AppComponent).catch(err => console.error(err)); });
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>MESCIUS Wijmo FlexGrid Tree Grids</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- Polyfills --> <script src="node_modules/core-js/client/shim.min.js"></script> <script src="node_modules/zone.js/fesm2015/zone.min.js"></script> <!-- SystemJS --> <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.21.5/system.src.js" integrity="sha512-skZbMyvYdNoZfLmiGn5ii6KmklM82rYX2uWctBhzaXPxJgiv4XBwJnFGr5k8s+6tE1pcR1nuTKghozJHyzMcoA==" crossorigin="anonymous"></script> <script src="systemjs.config.js"></script> <script> // workaround to load 'rxjs/operators' from the rxjs bundle System.import('rxjs').then(function (m) { System.set(SystemJS.resolveSync('rxjs/operators'), System.newModule(m.operators)); System.import('./src/app.component'); }); </script> </head> <body> <app-component></app-component> </body> </html>
<div class="container-fluid"> <label for="asTree">Show as Tree: </label> <input id="asTree" type="checkbox" checked="checked" (click)="onAsTreeClick($event)"> <wj-flex-grid #familyGrid [itemsSource]="family" [headersVisibility]="'None'" [autoGenerateColumns]="false" [childItemsPath]="'children'"> <wj-flex-grid-column [binding]="'name'" [header]="'Name'" [width]="'*'"></wj-flex-grid-column> </wj-flex-grid> <p> There are also 'heterogeneous' hierarchies, where items at different levels have different types and different child item properties.</p> <p> For example, the grid below is bound to a collection of 'worker' objects which receive 'checks' which list 'earnings':</p> <wj-flex-grid #workersGrid [itemsSource]="workers" [headersVisibility]="'Column'" [childItemsPath]="['checks','earnings']" [autoGenerateColumns]=false> <wj-flex-grid-column [binding]="'name'" [header]="'Name'"></wj-flex-grid-column> <wj-flex-grid-column [binding]="'hours'" [dataType]="'Number'" [allowSorting]="false"></wj-flex-grid-column> <wj-flex-grid-column [binding]="'rate'" [dataType]="'Number'" [allowSorting]="false"></wj-flex-grid-column> </wj-flex-grid> </div>
import { Injectable } from '@angular/core'; @Injectable() export class DataService { getFamilies() { return [ { name: 'Albert', children: [ { name: 'Anton' }, { name: 'Annette' }, ] }, { name: 'Benjamin', children: [ { name: 'Bridget', children: [ { name: 'Billy' }, { name: 'Bernard' } ] }, { name: 'Bella' }, { name: 'Bob' }, ] }, { name: 'Charlie', children: [ { name: 'Chris' }, { name: 'Connie' }, { name: 'Carrie' }, ] }, { name: 'Douglas', children: [ { name: 'Dinah' }, { name: 'Donald' } ] }, ] } getWorkers() { return [{ name: 'Jack Smith', checks: [{ name: 'check1', earnings: [ { name: 'hourly', hours: 30.0, rate: 15.0 }, { name: 'overtime', hours: 10.0, rate: 20.0 }, { name: 'bonus', hours: 5.0, rate: 30.0 } ] }, { name: 'check2', earnings: [ { name: 'hourly', hours: 20.0, rate: 18.0 }, { name: 'overtime', hours: 20.0, rate: 24.0 } ] }] }, { name: 'Bill Smith', checks: [{ name: 'check1', earnings: [ { name: 'hourly', hours: 30.0, rate: 15.0 }, { name: 'overtime', hours: 10.0, rate: 20.0 }, { name: 'bonus', hours: 5.0, rate: 30.0 } ] }, { name: 'check2', earnings: [ { name: 'hourly', hours: 20.0, rate: 18.0 }, { name: 'overtime', hours: 20.0, rate: 24.0 } ] }] }, { name: 'Jane Smith', checks: [{ name: 'check1', earnings: [ { name: 'hourly', hours: 30.0, rate: 15.0 }, { name: 'overtime', hours: 10.0, rate: 20.0 }, { name: 'bonus', hours: 5.0, rate: 30.0 } ] }, { name: 'check2', earnings: [ { name: 'hourly', hours: 20.0, rate: 18.0 }, { name: 'overtime', hours: 20.0, rate: 24.0 } ] }] }]; } }
.wj-flexgrid { max-height: 220px; margin: 6px 0; } .wj-cell.wj-group { border: none; } .wj-cell.wj-group:not(.wj-state-selected):not(.wj-state-multi-selected) { background-color: white; } body { margin-bottom: 24px; }
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packages: { "./src": { defaultExtension: 'ts' }, "node_modules": { defaultExtension: 'js' }, wijmo: { defaultExtension: 'js', } } }); })(this);