グリッド:詳細行

通常のグリッドよりも多くの情報を含むデータオブジェクトが、行に連結されることがあります。これらのシナリオでは、wijmo.grid.detailモジュールに含まれているFlexGridDetailProviderクラスを使用することができます。FlexGridDetailProviderは、FlexGridを拡張して、行ヘッダーに折りたたみ/展開ボタンを追加したり、createDetailCellメソッドを使用して項目に関する詳細情報を提供することができます。詳細情報は「詳細行」に表示され、詳細行は展開されたときにグリッドに追加され、折りたたまれたときに削除されます。

import 'bootstrap.css'; import '@grapecity/wijmo.styles/wijmo.css'; import './styles.css'; import * as wjOdata from '@grapecity/wijmo.odata'; import * as wjGrid from '@grapecity/wijmo.grid'; import * as wjGridDetail from '@grapecity/wijmo.grid.detail'; // document.readyState === 'complete' ? init() : window.onload = init; // function init() { // // get OData categories and products var url = 'https://services.odata.org/Northwind/Northwind.svc'; var categories = new wjOdata.ODataCollectionView(url, 'Categories', { fields: ['CategoryID', 'CategoryName', 'Description'] }); var products = new wjOdata.ODataCollectionView(url, 'Products'); // // shared column definitions var categoryColumns = [ { binding: 'CategoryName', header: '分類名', width: '*' }, { binding: 'Description', header: '説明', width: '2*' } ]; // // get products for a given category function getProducts(categoryID) { var arr = []; products.items.forEach(function (product) { if (product.CategoryID == categoryID) { arr.push(product); } }); return arr; } // // grid with HTML detail var htmlDetail = new wjGrid.FlexGrid('#htmlDetail', { autoGenerateColumns: false, columns: categoryColumns, itemsSource: categories, isReadOnly: true }); // // html detail provider var dpHtml = new wjGridDetail.FlexGridDetailProvider(htmlDetail, { // // use animation when showing details isAnimated: true, // // create detail cells for a given row createDetailCell: function (row) { // // build detail content for the current category var cat = row.dataItem; var prods = getProducts(cat.CategoryID); var html = 'ID: <b>' + cat.CategoryID + '</b><br/>'; html += '分類名: <b>' + cat.CategoryName + '</b><br/>'; html += '説明: <b>' + cat.Description + '</b><br/>'; html += '商品: <b>合計' + prods.length + '個</b><br/>'; html += '<ol>'; prods.forEach(function (product) { html += '<li>' + product.ProductName + '</li>'; }); html += '</ol>'; // // create and return detail cell var cell = document.createElement('div'); cell.innerHTML = html; return cell; } }); // // grid with grid detail var gridDetail = new wjGrid.FlexGrid('#gridDetail', { autoGenerateColumns: false, columns: categoryColumns, itemsSource: categories, isReadOnly: true }); // // grid detail provider var dpGrid = new wjGridDetail.FlexGridDetailProvider(gridDetail, { // // use animation when showing details isAnimated: true, // // limit height of detail rows maxHeight: 150, // // create detail cells for a given row createDetailCell: function (row) { var cell = document.createElement('div'); var detailGrid = new wjGrid.FlexGrid(cell, { headersVisibility: wjGrid.HeadersVisibility.Column, isReadOnly: true, autoGenerateColumns: false, itemsSource: getProducts(row.dataItem.CategoryID), columns: [ { header: 'ID', binding: 'ProductID', width: 80 }, { header: '商品名', binding: 'ProductName', width: '*' }, { header: '梱包単位', binding: 'QuantityPerUnit', width: '*' }, { header: '単価', binding: 'UnitPrice', width: 80 }, { header: '生産中止', binding: 'Discontinued' } ] }); return cell; } }); // }
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>GrapeCity Wijmo FlexGrid Nested Grids</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"> <h3> HTML要素を表示</h3> <p> このグリッドは、各行の商品カテゴリを示します。行を展開すると、そのカテゴリの商品に関する情報が表示されます。</p> <div id="htmlDetail"></div> <h3> グリッドを表示</h3> <p> 他のグリッドを含め、詳細行に任意のものを追加できます。この例は同じカテゴリを示していますが、詳細行は別のグリッドを使って商品を表示します。</p> <div id="gridDetail"></div> </div> </body> </html>
.wj-flexgrid { max-height: 350px; } body { margin-bottom: 20pt; }
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