Grouping

The grid supports grouping via the source CollectionView. Group the data by one or more properties by adding GroupDescription objects to the grid's collectionView.groupDescriptions. You may also want to hide the columns that are being grouped on in order to avoid showing redundant data.

import 'bootstrap.css'; import '@grapecity/wijmo.styles/wijmo.css'; import './styles.css'; import * as wjGrid from '@grapecity/wijmo.grid'; import * as wjCore from '@grapecity/wijmo'; // document.readyState === 'complete' ? init() : window.onload = init; // function init() { // // generate some random data var countries = 'US,Germany,UK,Japan,Italy,Greece'.split(','), products = 'Phones,Computers,Cameras,Stereos'.split(','), data = []; for (var i = 0; i < 200; i++) { data.push({ id: i, country: countries[i % countries.length], product: products[i % products.length], downloads: Math.round(100 + Math.random() * 10000), sales: Math.random() * 10000, expenses: Math.random() * 5000, }); } // // basic grouping var theGrid = new wjGrid.FlexGrid('#theGrid', { itemsSource: new wjCore.CollectionView(data, { sortDescriptions: ['country', 'product'], groupDescriptions: ['country', 'product'] }) }); // // select first item (after sorting/grouping) theGrid.select(new wjGrid.CellRange(0, 0), true); // // hide columns being grouped on var theGridHideCols = new wjGrid.FlexGrid('#theGridHideCols', { autoGenerateColumns: false, columns: [ { binding: 'country', header: 'Country', visible: false }, { binding: 'product', header: 'Product', visible: false }, { binding: 'downloads', header: 'Downloads', width: '*' }, { binding: 'sales', header: 'Sales', width: '*' }, { binding: 'expenses', header: 'Expenses', width: '*' }, ], itemsSource: new wjCore.CollectionView(data, { sortDescriptions: ['country', 'product'], groupDescriptions: ['country', 'product'] }) }); // // select first item (after sorting/grouping) theGridHideCols.select(new wjGrid.CellRange(0, 2), true); }
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>GrapeCity Wijmo FlexGrid Groups</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- SystemJS --> <script src="node_modules/systemjs/dist/system.src.js"></script> <script src="systemjs.config.js"></script> <script> System.import('./src/app'); </script> </head> <body> <div class="container-fluid"> <p> This example groups the data by country and by product:</p> <div id="theGrid"> </div> <p> This example groups the data by country and product, and hides those columns to achieve a cleaner appearance:</p> <div id="theGridHideCols"> </div> </div> </body> </html>
.wj-flexgrid { max-height: 250px; margin:10px 0; } body { margin-bottom: 20px; }
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