Column Groups (Object Model) (Angular)

In addition to the possibility to define grid's columnGroups property using a POJO array, you can use reactive ColumnGroupCollection of ColumnGroup objects for this purpose. In frameworks, you can use corresponding components in framework templates, along with cell templates defining cells and group headers content.

This object model gives you a possibility to change group properties and to restructure the groups tree without recreating the whole tree.

Learn about FlexGrid | FlexGrid API Reference

This example uses Angular.

import 'bootstrap.css'; import '@mescius/wijmo.styles/wijmo.css'; import './styles.css'; import '@angular/compiler'; import { Component, Inject, enableProdMode, ViewChild, ɵresolveComponentResources } from '@angular/core'; import { BrowserModule, bootstrapApplication } from '@angular/platform-browser'; import { FormsModule } from '@angular/forms'; import { WjGridModule } from '@mescius/wijmo.angular2.grid'; import * as DataService from './app.data'; @Component({ standalone: true, imports: [WjGridModule, BrowserModule, FormsModule], selector: 'app-component', templateUrl: 'src/app.component.html' }) export class AppComponent { animated = true; useCellTemplates = true; data = DataService.getData(); } 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 Column Groups with Templates</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> Collapse/Expand Animation <input id="animated" type="checkbox" [(ngModel)]="animated"/> </label> <label> Use cell templates <input type="checkbox" [(ngModel)]="useCellTemplates"/> </label> <wj-flex-grid #grid [ngClass]="{'animated': animated}" headersVisibility="Column" showSelectedHeaders="All" [alternatingRowStep]="0" [showMarquee]="true" [autoGenerateColumns]="false" [itemsSource]="data"> <wj-flex-grid-column-group binding="name" header="Name" [width]="150" ></wj-flex-grid-column-group> <wj-flex-grid-column-group binding="currency" header="Curr" [width]="80" align="center" ></wj-flex-grid-column-group> <wj-flex-grid-column-group #allocGr header="Allocation" align="center" collapseTo="alloc.amount"> <ng-template wjFlexGridCellTemplate [cellType]="'ColumnHeader'" [autoSizeRows]="false" let-cell="cell" *ngIf="useCellTemplates"> <input type="checkbox" [(ngModel)]="allocGr.isCollapsed"> {{cell.col.header}} </ng-template> <wj-flex-grid-column-group binding="alloc.stock" header="Stocks" format="p0" [width]="80" > <ng-template wjFlexGridCellTemplate [cellType]="'Cell'" let-cell="cell" *ngIf="useCellTemplates"> <span [class]="grid.getCellData(cell.row.index, cell.col.index, false) > .2 ? 'big-val' : 'small-val'"> {{grid.getCellData(cell.row.index, cell.col.index, true)}} </span> </ng-template> </wj-flex-grid-column-group> <wj-flex-grid-column-group binding="alloc.bond" header="Bonds" format="p0" [width]="80" > <ng-template wjFlexGridCellTemplate [cellType]="'Cell'" let-cell="cell" *ngIf="useCellTemplates"> <span [class]="grid.getCellData(cell.row.index, cell.col.index, false) > .2 ? 'big-val' : 'small-val'"> {{grid.getCellData(cell.row.index, cell.col.index, true)}} </span> </ng-template> </wj-flex-grid-column-group> <wj-flex-grid-column-group header="Detail" align="center" > <wj-flex-grid-column-group binding="alloc.cash" header="Cash" format="p0" [width]="80" > <ng-template wjFlexGridCellTemplate [cellType]="'Cell'" let-cell="cell" *ngIf="useCellTemplates"> <span [class]="grid.getCellData(cell.row.index, cell.col.index, false) > .2 ? 'big-val' : 'small-val'"> {{grid.getCellData(cell.row.index, cell.col.index, true)}} </span> </ng-template> </wj-flex-grid-column-group> <wj-flex-grid-column-group binding="alloc.other" header="Other" format="p0" [width]="80" > <ng-template wjFlexGridCellTemplate [cellType]="'Cell'" let-cell="cell" *ngIf="useCellTemplates"> <span [class]="grid.getCellData(cell.row.index, cell.col.index, false) > .2 ? 'big-val' : 'small-val'"> {{grid.getCellData(cell.row.index, cell.col.index, true)}} </span> </ng-template> </wj-flex-grid-column-group> </wj-flex-grid-column-group> <wj-flex-grid-column-group binding="alloc.amount" header="Amount" format="c0" [width]="100" cssClass="main-column" ></wj-flex-grid-column-group> </wj-flex-grid-column-group> <wj-flex-grid-column-group header="Perf" align="center" > <wj-flex-grid-column-group header="Short" align="center" collapseTo="perf.ytd" [isCollapsed]="true" > <wj-flex-grid-column-group binding="perf.ytd" header="YTD" format="p2" [width]="100" cssClass="main-column" ></wj-flex-grid-column-group> <wj-flex-grid-column-group binding="perf.m1" header="1 M" format="p2" [width]="80" ></wj-flex-grid-column-group> </wj-flex-grid-column-group> <wj-flex-grid-column-group header="Long" align="center" collapseTo="perf.m12" [isCollapsed]="true" > <wj-flex-grid-column-group binding="perf.m6" header="6 M" format="p2" [width]="80" ></wj-flex-grid-column-group> <wj-flex-grid-column-group binding="perf.m12" header="12 M" format="p2" [width]="100" cssClass="main-column" ></wj-flex-grid-column-group> </wj-flex-grid-column-group> </wj-flex-grid-column-group> </wj-flex-grid> </div>
// get some sample data export function getData(): any[] { return [{ name: 'Constant Growth', currency: 'USD', perf: { ytd: .0523, m1: 0.0142, m6: 0.0443, m12: 0.0743 }, alloc: { stock: 0.17, bond: 0.32, cash: 0.36, other: 0.15, amount: 23432 } }, { name: 'Optimus Prime', currency: 'EUR', perf: { ytd: .0343, m1: 0.043, m6: 0.0244, m12: 0.0543 }, alloc: { stock: 0.61, bond: 0.8, cash: 0.9, other: 0.22, amount: 43223 } }, { name: 'Crypto Planet', currency: 'BTC', perf: { ytd: .0343, m1: 0.014, m6: 0.034, m12: 0.01243 }, alloc: { stock: 0.1, bond: 0, cash: 0, other: 0.9, amount: 2234 } }, { name: 'MegaZone', currency: 'EUR', perf: { ytd: .0443, m1: 0.034, m6: 0.0424, m12: 0.0343 }, alloc: { stock: 0.51, bond: 0.9, cash: 0.8, other: 0.12, amount: 32234 } }, { name: 'Serenity', currency: 'YEN', perf: { ytd: .0522, m1: 0.0143, m6: 0.0458, m12: 0.0732 }, alloc: { stock: 0.66, bond: 0.09, cash: 0.19, other: 0.06, amount: 65624 } }]; }
label { display: block; } .wj-flexgrid { margin: 10px 0; } /* highlight the main column in the group */ .wj-flexgrid .wj-cells .wj-cell.main-column { background: #e3f4ff; } /* some conditional formatting */ .big-val { font-weight: bold; color: darkgreen; } .small-val { font-style: italic; color: rgb(202, 0, 0); } /* some animation when collapsing/expanding the groups */ .wj-flexgrid.animated .wj-colheaders .wj-header.wj-cell.wj-colgroup { transition: all .2s; }
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packages: { "./src": { defaultExtension: 'ts' }, "node_modules": { defaultExtension: 'js' }, wijmo: { defaultExtension: 'js', } } }); })(this);