グリッド:CollectionView

グリッドのitemsSourceプロパティを通常のJavaScript配列に設定すると、内部的にCollectionViewが自動的に作成されてデータソースとして使用されるので、自分でCollectionViewを作成しなくてもソートや編集機能を提供することができます。この内部ビューは、グリッドのcollectionViewプロパティで公開されており、追加の機能が必要な場合に使用することができます。たとえば、下のグリッドは通常の配列に連結され、グリッドのcollectionViewプロパティは現在選択されている項目を表示するために使用されます。

import 'bootstrap.css'; import '@mescius/wijmo.styles/wijmo.css'; import { SortDescription, format } from '@mescius/wijmo'; import { FlexGrid } from '@mescius/wijmo.grid'; document.readyState === 'complete' ? init() : window.onload = init; function init() { // create some random data var countries = 'アメリカ,ドイツ,イギリス,日本,イタリア,ギリシャ'.split(','); 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 }); } // bind a grid to the raw data var theGrid = new FlexGrid('#theGrid', { autoGenerateColumns: false, columns: [ { binding: 'country', header: '国', width: '2*' }, { binding: 'sales', header: '売上', width: '*', format: 'n2' }, { binding: 'expenses', header: '費用', width: '*', format: 'n2' } ], itemsSource: data }); // show the current item var selItemElement = document.getElementById('selectedItem'); function updateCurrentInfo() { selItemElement.innerHTML = format('国: <b>{country}</b>、売上: <b>{sales:c0}</b>、費用: <b>{expenses:c0}</b>', theGrid.collectionView.currentItem); } // update current item now and when the grid selection changes updateCurrentInfo(); theGrid.collectionView.currentChanged.addHandler(updateCurrentInfo); // sort the data by country var sd = new SortDescription('country', true); theGrid.collectionView.sortDescriptions.push(sd); }
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>MESCIUS Wijmo FlexGrid Arrays and CollectionViews Binding</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"> <p id="selectedItem"></p> <div id="theGrid"></div> </div> </body> </html>
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