グリッド:編集を強調表示

このサンプルは、編集されたセルを強調表示する方法を示しています。

このサンプルでは、編集または貼り付けされたセルの元の値を追跡するEditHighlighter クラスを使用し、カスタムCSSクラスをセルに適用してそれらを強調表示します。

セルの元の値を復元すると、ハイライトが削除されます。

import 'bootstrap.css'; import '@grapecity/wijmo.styles/wijmo.css'; import './styles.css'; import { FlexGrid } from '@grapecity/wijmo.grid'; import { EditHighlighter } from './edit-highlighter'; document.readyState === 'complete' ? init() : window.onload = init; function init() { var countries = 'アメリカ,ドイツ,イギリス,日本,スウェーデン,ノルウェー,デンマーク'.split(','); // create the grid var theGrid = new FlexGrid('#theGrid', { itemsSource: getData(), columns: [ { binding: 'id', header: 'ID', width: 50, isReadOnly: true }, { binding: 'country', header: '国', isRequired: true }, { binding: 'sales', header: '売上', format: 'n2' }, { binding: 'expenses', header: '費用', format: 'n2' }, { binding: 'overdue', header: '期限切れ' } ], }); // create the EditHighlighter new EditHighlighter(theGrid, 'cell-changed'); // create some random data function getData() { var data = []; for (var i = 0; i < countries.length; i++) { data.push({ id: i, country: countries[i], sales: Math.random() * 10000, expenses: Math.random() * 5000, overdue: i % 4 == 0 }); } return data; } }
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>GrapeCity Wijmo FlexGrid Editing</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 id="theGrid"></div> </div> </body> </html>
.wj-flexgrid { max-height: 220px; } .wj-flexgrid .cell-changed { background-color: lightpink; } body { margin-bottom: 24px; }
import { isUndefined, isDate, toggleClass } from '@grapecity/wijmo'; /** * Class that highlights cells that have been edited in a FlexGrid. */ export class EditHighlighter { /** * Initializes a new instance of the {@link EditHighlighter} class. * * @param grid FlexGrid to highlight. * @param cssClass Class name to apply to changed cells. */ constructor(grid, cssClass) { this._originalValues = new Map(); this._grid = grid; let cellChanged = this._cellChanged.bind(this); grid.cellEditEnded.addHandler(cellChanged); grid.pastedCell.addHandler(cellChanged); grid.formatItem.addHandler((s, e) => { if (e.panel == s.cells) { let changed = this._hasChange(e.getRow().dataItem, e.getColumn().binding); toggleClass(e.cell, 'cell-changed', changed); } }); } /** * Clears all the changes and removes all highlights. */ clearChanges() { this._originalValues.clear(); this._grid.invalidate(); } // checks whether a cell has changed _hasChange(item, binding) { item = this._originalValues.get(item); return item != null && !isUndefined(item[binding]); } // handles a cell change (edit or paste) _cellChanged(s, e) { let originalValue = e.data, newValue = s.getCellData(e.row, e.col, false); this._storeChange(e.getRow().dataItem, e.getColumn().binding, originalValue, newValue); } // store a change into the _originalValues map _storeChange(item, binding, originalValue, newValue) { // get the item with the original values let editItem = this._originalValues.get(item); if (editItem == null) { editItem = {}; this._originalValues.set(item, editItem); } // get the original value from the item if possible let editValue = editItem[binding]; if (!isUndefined(editValue)) { originalValue = editValue; } // store or clear the change if (this._sameValue(originalValue, newValue)) { delete editItem[binding]; if (Object.keys(editItem).length == 0) { this._originalValues.delete(item); } } else { editItem[binding] = originalValue; } } // compare two values taking dates into account _sameValue(item1, item2) { if (item1 === item2) { return true; } if (isDate(item1) && isDate(item2)) { return item1.getTime() == item2.getTime(); } return false; } }
(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.chart.map': 'npm:@grapecity/wijmo.chart.map/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.rest': 'npm:@grapecity/wijmo.rest/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);