Custom Merging (Angular)

By default, FlexGrid applies merging to cells based on their content.

In some cases, you may want to use different strategies for merging. You can achieve this by defining a class that extends the wijmo.grid.MergeManager class and assigning an object of that type to the grid's mergeManager property.

Learn about FlexGrid | Custom Merging Documentation | FlexGrid API Reference

This example uses Angular.

import 'bootstrap.css'; import '@mescius/wijmo.styles/wijmo.css'; import './styles.css'; // import * as wjCore from '@mescius/wijmo'; import * as wjGrid from '@mescius/wijmo.grid'; import '@angular/compiler'; import { Component, enableProdMode, ɵresolveComponentResources } from '@angular/core'; import { BrowserModule, bootstrapApplication } from '@angular/platform-browser'; import { WjGridModule } from '@mescius/wijmo.angular2.grid'; class CustomMergeManager extends wjGrid.MergeManager { getMergedRange(panel: wjGrid.GridPanel, r: number, c: number, clip: boolean = true) { // // create basic cell range var rng = new wjGrid.CellRange(r, c); // // expand left/right for (var i = rng.col; i < panel.columns.length - 1; i++) { if (panel.getCellData(rng.row, i, true) != panel.getCellData(rng.row, i + 1, true)) break; rng.col2 = i + 1; } for (var i = rng.col; i > 0; i--) { if (panel.getCellData(rng.row, i, true) != panel.getCellData(rng.row, i - 1, true)) break; rng.col = i - 1; } // // expand up/down for (var i = rng.row; i < panel.rows.length - 1; i++) { if (panel.getCellData(i, rng.col, true) != panel.getCellData(i + 1, rng.col, true)) break; rng.row2 = i + 1; } for (var i = rng.row; i > 0; i--) { if (panel.getCellData(i, rng.col, true) != panel.getCellData(i - 1, rng.col, true)) break; rng.row = i - 1; } // // done return rng; } } function setData(p: wjGrid.GridPanel, r: number, cells: string[]) { if (p.cellType == wjGrid.CellType.Cell) { p.grid.rowHeaders.setCellData(r, 0, cells[0]); } for (var i = 1; i < cells.length; i++) { p.setCellData(r, i - 1, cells[i]); } } function centerCell(s: wjGrid.FlexGrid, e: wjGrid.FormatItemEventArgs) { if (e.cell.children.length == 0) { e.cell.innerHTML = '<div>' + e.cell.innerHTML + '</div>'; wjCore.setCss(e.cell, { display: 'table', tableLayout: 'fixed' }); wjCore.setCss(e.cell.children[0], { display: 'table-cell', textAlign: 'center', verticalAlign: 'middle' }); } } @Component({ standalone: true, imports: [WjGridModule, BrowserModule], selector: 'app-component', templateUrl: 'src/app.component.html' }) export class AppComponent { onInitialized(flexGrid: wjGrid.FlexGrid) { while (flexGrid.columns.length < 7) { flexGrid.columns.push(new wjGrid.Column()); } while (flexGrid.rows.length < 5) { flexGrid.rows.push(new wjGrid.Row()); } // configure the grid flexGrid.mergeManager = new CustomMergeManager(); flexGrid.formatItem.addHandler(centerCell); flexGrid.rowHeaders.columns[0].width = 80; flexGrid.rows.defaultSize = 40; flexGrid.alternatingRowStep = 0; flexGrid.isReadOnly = true; // populate the grid setData(flexGrid.columnHeaders, 0, ',Monday,Tuesday,Wednesday,Thursday,Friday,Saturday,Sunday'.split(',')); setData(flexGrid.cells, 0, '12:00,Walker,Morning Show,Morning Show,Sport,Weather,N/A,N/A'.split(',')); setData(flexGrid.cells, 1, '13:00,Today Show,Today Show,Sesame Street,Football,Market Watch,N/A,N/A'.split(',')); setData(flexGrid.cells, 2, '14:00,Today Show,Today Show,Kid Zone,Football,Soap Opera,N/A,N/A'.split(',')); setData(flexGrid.cells, 3, '15:00,News,News,News,News,News,N/A,N/A'.split(',')); setData(flexGrid.cells, 4, '16:00,News,News,News,News,News,N/A,N/A'.split(',')); } } 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 Custom Merging</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"> <wj-flex-grid #theGird (initialized)="onInitialized(theGird)"> </wj-flex-grid> </div>
.wj-flexgrid { margin-bottom: 12px; } body { margin-bottom: 24px; }
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packages: { "./src": { defaultExtension: 'ts' }, "node_modules": { defaultExtension: 'js' }, wijmo: { defaultExtension: 'js', } } }); })(this);