DataMaps (React)

그리드에 실제로 저장된 값과는 다른 값이 셀에 표시되도록 열에서 값을 매핑하려는 경우가 많습니다. formatItem 이벤트를 사용하여 이 작업을 수행할 수도 있지만, FlexGridDataMaps를 사용하는 것이 더 좋습니다. 열의 dataMap 속성을 DataMap 인스턴스로 설정하면, 그리드는 해당 인스턴스를 사용하여 각 데이터 항목의 표시 값을 조회하고 셀 편집 시 유효한 항목이 포함된 드롭다운 목록을 제공합니다.

이 데모는 React를 기반으로합니다.

import 'bootstrap.css'; import '@grapecity/wijmo.styles/wijmo.css'; import './app.css'; // import * as React from 'react'; import * as ReactDOM from 'react-dom/client'; import * as wjcGrid from '@grapecity/wijmo.grid'; import * as wjGrid from '@grapecity/wijmo.react.grid'; class App extends React.Component { constructor(props) { super(props); this.state = { data: null, customerMap: null, countries: 'US,Germany,UK,Japan,Sweden,Norway,Denmark'.split(','), customers: [ { id: 0, name: 'Paul Perkins', address: '123 Main St' }, { id: 1, name: 'Susan Smith', address: '456 Grand Ave' }, { id: 2, name: 'Joan Jett', address: '789 Broad St' }, { id: 3, name: 'Don Davis', address: '321 Shattuck Ave' }, ] }; } render() { return <div className="container-fluid"> <wjGrid.FlexGrid initialized={this.mainGridInitialized.bind(this)} itemsSource={this.state.data}> <wjGrid.FlexGridColumn header="Customer" binding="customer" width="1.5*" dataMap={this.state.customerMap}> </wjGrid.FlexGridColumn> <wjGrid.FlexGridColumn header="Country" binding="country" width="*" dataMap={this.state.countries}> </wjGrid.FlexGridColumn> <wjGrid.FlexGridColumn header="Downloads" binding="downloads" width="*" format="n0"> </wjGrid.FlexGridColumn> <wjGrid.FlexGridColumn header="Sales" binding="sales" width="*" format="n0"> </wjGrid.FlexGridColumn> <wjGrid.FlexGridColumn header="Expenses" binding="expenses" width="*" format="n0"> </wjGrid.FlexGridColumn> </wjGrid.FlexGrid> <p> And here is another grid showing all the customers. If you edit their names, you will see the change in the top grid: </p> <wjGrid.FlexGrid initialized={this.dataMapGridInitialized.bind(this)} itemsSource={this.state.customers}> </wjGrid.FlexGrid> </div>; } mainGridInitialized(mainGrid) { this.mainGrid = mainGrid; } dataMapGridInitialized(flexGrid) { var data = this.getData(); var customerMap = new wjcGrid.DataMap(this.state.customers, 'id', 'name'); var _this = this; flexGrid.rowEditEnded.addHandler(() => { let column = this.mainGrid.getColumn('customer'); if (column) { column.dataMap = new wjcGrid.DataMap(_this.state.customers, 'id', 'name'); } this.mainGrid.refresh(); // update customer names on the main grid }); this.setState({ data: data, customerMap: customerMap }); } getData() { let data = []; for (let i = 0; i < this.state.countries.length; i++) { data.push({ id: i, country: this.state.countries[i], customer: this.state.customers[i % this.state.customers.length].id, active: i % 5 != 0, downloads: Math.round(Math.random() * 200000), sales: Math.random() * 100000, expenses: Math.random() * 50000 }); } return data; } } setTimeout(() => { const container = document.getElementById('app'); if (container) { const root = ReactDOM.createRoot(container); root.render(<App />); } }, 100);
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>MESCIUS Wijmo FlexGrid Column DataMaps</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 id="app"></div> </body> </html>
.wj-flexgrid { max-height: 200px; margin: 12px 0; }
(function (global) { System.config({ transpiler: 'plugin-babel', babelOptions: { es2015: true, react: 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.grid.immutable': 'npm:@grapecity/wijmo.grid.immutable/index.js', '@grapecity/wijmo.touch': 'npm:@grapecity/wijmo.touch/index.js', '@grapecity/wijmo.cloud': 'npm:@grapecity/wijmo.cloud/index.js', '@grapecity/wijmo.nav': 'npm:@grapecity/wijmo.nav/index.js', '@grapecity/wijmo.odata': 'npm:@grapecity/wijmo.odata/index.js', 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'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: 'jsx' }, "node_modules": { defaultExtension: 'js' }, } }); })(this);