비동기적으로 행 크기 자동 조정

많은 데이터가 포함된 그리드에서 모든 행의 크기를 자동 조정하려면 오랜 시간이 걸립니다. 이 샘플은 비동기적으로 행 크기를 자동 조정하여 성능을 향상하는 방법을 보여 줍니다. 코드에서는 이벤트를 수신 대기하고, 현재 뷰에 있으며 아직 크기가 자동 조정되지 않은 행의 크기만 자동 조정합니다.

import 'bootstrap.css'; import '@grapecity/wijmo.styles/wijmo.css'; import './styles.css'; import * as wjGrid from '@grapecity/wijmo.grid'; import { getCountries } from './data'; // document.readyState === 'complete' ? init() : window.onload = init; // function init() { // // create some random data var data = []; for (var i = 0; i < 10000; i++) { data.push({ id: i, countries: getCountries(), sales: Math.random() * 10000, expenses: Math.random() * 5000 }); } // // show the data in a grid with fixed height var theGrid = new wjGrid.FlexGrid('#theGrid', { autoGenerateColumns: false, columns: [ { binding: 'id', header: 'ID', minWidth: 60, isReadOnly: true }, { binding: 'countries', header: 'Countries', width: 150, wordWrap: true }, { binding: 'sales', header: 'Sales' }, { binding: 'expenses', header: 'Expenses' } ], // // auto-size all rows when they are loaded loadedRows: (s, e) => { autoSizeRowsAsync(s); }, // // auto-size all rows when a wrapping column is resized resizedColumn: (s, e) => { if (s.columns[e.col].wordWrap) { autoSizeRowsAsync(s); } }, // // auto-size a single row when a wrapping cell is edited cellEditEnded: (s, e) => { if (s.columns[e.col].wordWrap) { autoSizeRowsAsync(s, e.row); } }, // // autosize rows within view that haven't been autosized yet scrollPositionChanged: (s, e) => { var vr = s.viewRange; for (var r = vr.topRow; r <= vr.bottomRow; r++) { if (s.rows[r].height == null) { s.autoSizeRows(r, r); //console.log('autosized row ' + r) } } }, // // load some data itemsSource: data }); // // reset row heights to null and raise scrollPositionChanged event // to auto-size the rows that are in view and haven't been auto-sized function autoSizeRowsAsync(grid, rowIndex) { if (rowIndex != null) { grid.rows[rowIndex].height = null; } else { grid.rows.forEach(row => { row.height = null; }); } setTimeout(() => { grid.onScrollPositionChanged(); }); } // // synchronouse auto-size (to show how long it would take) document.getElementById('asSync').addEventListener('click', () => { var start = Date.now(); theGrid.autoSizeRows(); alert('AutoSized all rows in ' + (Date.now() - start) + 'ms'); }); // }
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>GrapeCity Wijmo FlexGrid Auto-Size Rows asynchronously</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"> <button id="asSync" class="btn btn-default">AutoSizeRows (synchronously)</button> <div id="theGrid"></div> </div> </body> </html>
export function getCountries() { var countries = 'Austria,Belgium,Canada,Denmark,Estonia,Finland,Germany,Hungary,Ireland,Japan,Korea,Lebanon,Mexico,Norway,Portugal,Qatar,Romania,Spain,Turkey,Ukraine,Venezuela,Zaire'.split(','); var c = []; var cnt = Math.round(Math.random() * 8) + 1; var start = Math.round(Math.random() * countries.length); for (var i = 0; i < cnt; i++) { c.push(countries[(i + start) % countries.length]); } return c.join(', '); }
body { margin-bottom: 36pt; } .wj-flexgrid { max-height: 300px; margin: 6px 0; }
(function (global) { System.config({ transpiler: 'plugin-babel', babelOptions: { es2015: true }, meta: { '*.css': { loader: 'css' } }, paths: { // paths serve as alias 'npm:': 'node_modules/' }, // map tells the System loader where to look for things map: { 'jszip': 'npm:jszip/dist/jszip.js', '@grapecity/wijmo': 'npm:@grapecity/wijmo/index.js', '@grapecity/wijmo.input': 'npm:@grapecity/wijmo.input/index.js', '@grapecity/wijmo.styles': 'npm:@grapecity/wijmo.styles', '@grapecity/wijmo.cultures': 'npm:@grapecity/wijmo.cultures', '@grapecity/wijmo.chart': 'npm:@grapecity/wijmo.chart/index.js', '@grapecity/wijmo.chart.analytics': 'npm:@grapecity/wijmo.chart.analytics/index.js', '@grapecity/wijmo.chart.animation': 'npm:@grapecity/wijmo.chart.animation/index.js', '@grapecity/wijmo.chart.annotation': 'npm:@grapecity/wijmo.chart.annotation/index.js', '@grapecity/wijmo.chart.finance': 'npm:@grapecity/wijmo.chart.finance/index.js', '@grapecity/wijmo.chart.finance.analytics': 'npm:@grapecity/wijmo.chart.finance.analytics/index.js', '@grapecity/wijmo.chart.hierarchical': 'npm:@grapecity/wijmo.chart.hierarchical/index.js', '@grapecity/wijmo.chart.interaction': 'npm:@grapecity/wijmo.chart.interaction/index.js', '@grapecity/wijmo.chart.radar': 'npm:@grapecity/wijmo.chart.radar/index.js', '@grapecity/wijmo.chart.render': 'npm:@grapecity/wijmo.chart.render/index.js', '@grapecity/wijmo.chart.webgl': 'npm:@grapecity/wijmo.chart.webgl/index.js', '@grapecity/wijmo.gauge': 'npm:@grapecity/wijmo.gauge/index.js', '@grapecity/wijmo.grid': 'npm:@grapecity/wijmo.grid/index.js', '@grapecity/wijmo.grid.detail': 'npm:@grapecity/wijmo.grid.detail/index.js', '@grapecity/wijmo.grid.filter': 'npm:@grapecity/wijmo.grid.filter/index.js', '@grapecity/wijmo.grid.search': 'npm:@grapecity/wijmo.grid.search/index.js', '@grapecity/wijmo.grid.grouppanel': 'npm:@grapecity/wijmo.grid.grouppanel/index.js', '@grapecity/wijmo.grid.multirow': 'npm:@grapecity/wijmo.grid.multirow/index.js', '@grapecity/wijmo.grid.transposed': 'npm:@grapecity/wijmo.grid.transposed/index.js', '@grapecity/wijmo.grid.transposedmultirow': 'npm:@grapecity/wijmo.grid.transposedmultirow/index.js', '@grapecity/wijmo.grid.pdf': 'npm:@grapecity/wijmo.grid.pdf/index.js', '@grapecity/wijmo.grid.sheet': 'npm:@grapecity/wijmo.grid.sheet/index.js', '@grapecity/wijmo.grid.xlsx': 'npm:@grapecity/wijmo.grid.xlsx/index.js', '@grapecity/wijmo.grid.selector': 'npm:@grapecity/wijmo.grid.selector/index.js', '@grapecity/wijmo.grid.cellmaker': 'npm:@grapecity/wijmo.grid.cellmaker/index.js', '@grapecity/wijmo.nav': 'npm:@grapecity/wijmo.nav/index.js', '@grapecity/wijmo.odata': 'npm:@grapecity/wijmo.odata/index.js', '@grapecity/wijmo.olap': 'npm:@grapecity/wijmo.olap/index.js', '@grapecity/wijmo.pdf': 'npm:@grapecity/wijmo.pdf/index.js', '@grapecity/wijmo.pdf.security': 'npm:@grapecity/wijmo.pdf.security/index.js', '@grapecity/wijmo.viewer': 'npm:@grapecity/wijmo.viewer/index.js', '@grapecity/wijmo.xlsx': 'npm:@grapecity/wijmo.xlsx/index.js', '@grapecity/wijmo.undo': 'npm:@grapecity/wijmo.undo/index.js', '@grapecity/wijmo.interop.grid': 'npm:@grapecity/wijmo.interop.grid/index.js', '@grapecity/wijmo.touch': 'npm:@grapecity/wijmo.touch/index.js', '@grapecity/wijmo.cloud': 'npm:@grapecity/wijmo.cloud/index.js', '@grapecity/wijmo.barcode': 'npm:@grapecity/wijmo.barcode/index.js', '@grapecity/wijmo.barcode.common': 'npm:@grapecity/wijmo.barcode.common/index.js', '@grapecity/wijmo.barcode.composite': 'npm:@grapecity/wijmo.barcode.composite/index.js', '@grapecity/wijmo.barcode.specialized': 'npm:@grapecity/wijmo.barcode.specialized/index.js', 'jszip': 'npm:jszip/dist/jszip.js', 'bootstrap.css': 'npm:bootstrap/dist/css/bootstrap.min.css', 'css': 'npm:systemjs-plugin-css/css.js', 'plugin-babel': 'npm:systemjs-plugin-babel/plugin-babel.js', 'systemjs-babel-build':'npm:systemjs-plugin-babel/systemjs-babel-browser.js' }, // packages tells the System loader how to load when no filename and/or no extension packages: { src: { defaultExtension: 'js' }, "node_modules": { defaultExtension: 'js' }, } }); })(this);