CollectionView의 변경 내용 추적

trackChanges 속성을 true로 설정하면 CollectionView에서 수정된 항목을 추적할 수 있습니다. 활성화된 경우, CollectionView는 콘텐츠 편집 시 itemsAdded, itemsRemoved, itemsEdited 컬렉션을 업데이트합니다. 이 샘플은 해당 컬렉션을 별도의 그리드에 표시하여 변경 내용을 추적하는 방법을 보여 줍니다.

FlexGrid 알아보기 | Editing Views Documentation | CollectionView API Reference

import 'bootstrap.css'; import '@mescius/wijmo.styles/wijmo.css'; import './styles.css'; import * as wijmo from '@mescius/wijmo'; import * as grid from '@mescius/wijmo.grid'; import { getData } from './data'; document.readyState === 'complete' ? init() : window.onload = init; function init() { // create a CollectionView with change tracking let view = new wijmo.CollectionView(getData(), { sortDescriptions: ['country'], trackChanges: true }); // create grid for editing let theGrid = new grid.FlexGrid('#theGrid', { itemsSource: view, allowAddNew: true, allowDelete: true }); // create grids to show changes let edited = new grid.FlexGrid('#edited', { itemsSource: view.itemsEdited, isReadOnly: true }); let added = new grid.FlexGrid('#added', { itemsSource: view.itemsAdded, isReadOnly: true }); let removed = new grid.FlexGrid('#removed', { itemsSource: view.itemsRemoved, isReadOnly: true }); }
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>MESCIUS Wijmo CollectionView Change Tracking</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- SystemJS --> <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.21.5/system.src.js" integrity="sha512-skZbMyvYdNoZfLmiGn5ii6KmklM82rYX2uWctBhzaXPxJgiv4XBwJnFGr5k8s+6tE1pcR1nuTKghozJHyzMcoA==" crossorigin="anonymous"></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-6"> <div id="theGrid"></div> </div> <div class="col-xs-6"> <h4>Edited Items:</h4> <div id="edited" class="changed edited"></div> <h4>Added Items:</h4> <div id="added" class="changed added"></div> <h4>Removed Items:</h4> <div id="removed" class="changed removed"></div> </div> </div> </div> </body> </html>
export function getData() { let countries = ['US', 'Germany', 'UK', 'Japan', 'Italy'], data = []; for (let i = 0; i < countries.length; i++) { data.push({ country: countries[i], downloads: Math.round(Math.random() * 20000), sales: Math.random() * 10000, expenses: Math.random() * 5000 }); } return data; }
.wj-flexgrid:not(.changed) { height: 300px; } .changed { font-size: 90%; background-color: #f0f0f0 } .edited { color: orange } .added { color: green } .removed { color: red }
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