ツリービュー:パフォーマンス

TreeViewコントロールは、itemsSource配列の各ノードに対してDOM要素を作成します。以下のサンプルは、さまざまなサイズのソースに連結したときのTreeViewのパフォーマンスを示しています。

import 'bootstrap.css'; import '@grapecity/wijmo.styles/wijmo.css'; import './styles.css'; import * as wjCore from '@grapecity/wijmo'; import * as wjInput from '@grapecity/wijmo.input'; import * as wjNav from '@grapecity/wijmo.nav'; document.readyState === 'complete' ? init() : window.onload = init; function init() { // select the number levels and nodes at each level var cmbLevels = new wjInput.ComboBox('#cmbLevels', { itemsSource: [1, 2, 3], selectedValue: 2 }); var cmbNodesPerLevel = new wjInput.ComboBox('#cmbNodesPerLevel', { itemsSource: [5, 10, 20, 40], selectedValue: 5 }); // create the tree var theTree = new wjNav.TreeView('#theTree', { itemsSource: getData(), displayMemberPath: 'header', childItemsPath: 'items', }); // re-bind tree document.getElementById('bind').addEventListener('click', function (e) { var start = Date.now(); theTree.itemsSource = getData(); theTree.loadTree(); // force immediate refresh var msg = wjCore.format('<b>{cnt:no}</b>個のノードを連結: <b>{ms:n0}</b>(ms)', { cnt: theTree.totalItemCount, ms: Date.now() - start }); document.getElementById('bindingMsg').innerHTML = msg; }); // get the data function getData() { var cnt = cmbNodesPerLevel.selectedValue, levels = cmbLevels.selectedValue, nodes = []; for (var i = 0; i < cnt; i++) { nodes.push(getNode(0, i, cnt, levels)); } return nodes; } function getNode(level, id, cnt, levels) { // create parent node var node = { header: 'ノード ' + (level + 1) + '.' + (id + 1), }; // create child nodes if (level < levels - 1) { node.items = []; for (var i = 0; i < cnt; i++) { node.items.push(getNode(level + 1, i, cnt, levels)); } } // done return node; } }
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>GrapeCity Wijmo TreeView Performance</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"> <div class="row"> <div class="col-xs-5"> <label for="cmbLevels"> レベル数: </label> <div id="cmbLevels"></div> <br /> <label for="cmbLevels"> 1レベルのノード数: </label> <div id="cmbNodesPerLevel"></div> <br /> <label></label> <button class="btn btn-primary" id="bind"> データを連結 </button> <div id="bindingMsg"></div> </div> <div class="col-xs-7"> <div id="theTree"></div> </div> </div> </div> </body> </html>
/* default trees on this sample */ .wj-treeview { height: 350px; border: 1px solid rgba(0,0,0,0.2); } .wj-combobox { width: 120px; } label { width: 150px; text-align: right; margin-bottom: 12px; } body { margin-bottom: 24pt; }
(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.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.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', '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);