Row Details (React)

Sometimes rows are bound to data objects that contain more information than would fit easily on FlexGrid. In these scenarios, you may want to use the FlexGridDetailProvider class that is included with the wijmo.grid.detail module. The FlexGridDetailProvider extends the FlexGrid by adding collapse/expand buttons to row headers, and a createDetailCell method you can use to provide additional details about an item.

Learn about FlexGrid | Nested Grids Documentation | FlexGrid API Reference

This example uses React.

import 'bootstrap.css'; import '@mescius/wijmo.styles/wijmo.css'; import ReactDOM from 'react-dom/client'; import React, { useRef, useState } from 'react'; import * as wjOdata from '@mescius/wijmo.odata'; import { FlexGrid, FlexGridColumn } from '@mescius/wijmo.react.grid'; import { FlexGridDetail } from '@mescius/wijmo.react.grid.detail'; import './app.css'; const url = 'https://services.odata.org/Northwind/Northwind.svc'; function App() { const catToProductMapRef = useRef(new Map()); const [categories, setCategories] = useState(new wjOdata.ODataCollectionView(url, 'Categories', { fields: ['CategoryID', 'CategoryName', 'Description'] })); const [products, setProducts] = useState(new wjOdata.ODataCollectionView(url, 'Products')); const getProducts = (categoryID) => { let categoryProducts = catToProductMapRef.current.get(categoryID); if (!categoryProducts) { categoryProducts = products.items.filter((product) => product.CategoryID === categoryID); catToProductMapRef.current.set(categoryID, categoryProducts); } return categoryProducts; }; return (<div className="container-fluid"> <h3>HTML in Row Details</h3> <p> This grid shows product categories on each row. Expanding the rows shows an HTML element with information about the products in that category: </p> <FlexGrid itemsSource={categories} isReadOnly> <FlexGridColumn header="Category Name" binding="CategoryName" width="*"/> <FlexGridColumn header="Description" binding="Description" width="2*"/> <FlexGridDetail isAnimated template={(ctx) => <React.Fragment> ID: <b>{ctx.item.CategoryID}</b><br /> Name: <b>{ctx.item.CategoryName}</b><br /> Description: <b>{ctx.item.Description}</b><br /> <ol> {getProducts(ctx.item.CategoryID).map(p => <li key={p.ProductID}>{p.ProductName}</li>)} </ol> </React.Fragment>}/> </FlexGrid> <h3>Grids in Row Details</h3> <p> You can add anything you want to the detail rows, including other grids. This example shows the same categories, but the detail row uses another grid to show the products: </p> <FlexGrid itemsSource={categories} isReadOnly> <FlexGridColumn header="Category Name" binding="CategoryName" width="*"/> <FlexGridColumn header="Description" binding="Description" width="2*"/> <FlexGridDetail maxHeight={250} template={(ctx) => <FlexGrid autoGenerateColumns={false} isReadOnly itemsSource={getProducts(ctx.item.CategoryID)}> <FlexGridColumn header="ID" binding="ProductID"/> <FlexGridColumn header="Name" binding="ProductName"/> <FlexGridColumn header="Qty/Unit" binding="QuantityPerUnit"/> <FlexGridColumn header="Unit Price" binding="UnitPrice"/> <FlexGridColumn header="Discontinued" binding="Discontinued"/> </FlexGrid>}/> </FlexGrid> </div>); } const container = document.getElementById('app'); if (container) { const root = ReactDOM.createRoot(container); root.render(<App />); }
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>MESCIUS Wijmo Wijmo FlexGrid Nested Grids</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- SystemJS --> <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.40/system.src.js" integrity="sha512-G6mEj6h18+m3MvzdviSDfPle/TfH0//cXcB33AKlNR/Rha0yQsKefDZKRTkIZos97HEGq2JMV1RT5ybMoQ3WsQ==" crossorigin="anonymous"></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: 350px; }
(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', '@mescius/wijmo': 'npm:@mescius/wijmo/index.js', '@mescius/wijmo.input': 'npm:@mescius/wijmo.input/index.js', '@mescius/wijmo.styles': 'npm:@mescius/wijmo.styles', '@mescius/wijmo.cultures': 'npm:@mescius/wijmo.cultures', '@mescius/wijmo.chart': 'npm:@mescius/wijmo.chart/index.js', '@mescius/wijmo.chart.analytics': 'npm:@mescius/wijmo.chart.analytics/index.js', '@mescius/wijmo.chart.animation': 'npm:@mescius/wijmo.chart.animation/index.js', '@mescius/wijmo.chart.annotation': 'npm:@mescius/wijmo.chart.annotation/index.js', '@mescius/wijmo.chart.finance': 'npm:@mescius/wijmo.chart.finance/index.js', '@mescius/wijmo.chart.finance.analytics': 'npm:@mescius/wijmo.chart.finance.analytics/index.js', '@mescius/wijmo.chart.hierarchical': 'npm:@mescius/wijmo.chart.hierarchical/index.js', '@mescius/wijmo.chart.interaction': 'npm:@mescius/wijmo.chart.interaction/index.js', '@mescius/wijmo.chart.radar': 'npm:@mescius/wijmo.chart.radar/index.js', '@mescius/wijmo.chart.render': 'npm:@mescius/wijmo.chart.render/index.js', '@mescius/wijmo.chart.webgl': 'npm:@mescius/wijmo.chart.webgl/index.js', '@mescius/wijmo.chart.map': 'npm:@mescius/wijmo.chart.map/index.js', '@mescius/wijmo.gauge': 'npm:@mescius/wijmo.gauge/index.js', '@mescius/wijmo.grid': 'npm:@mescius/wijmo.grid/index.js', '@mescius/wijmo.grid.detail': 'npm:@mescius/wijmo.grid.detail/index.js', '@mescius/wijmo.grid.filter': 'npm:@mescius/wijmo.grid.filter/index.js', '@mescius/wijmo.grid.search': 'npm:@mescius/wijmo.grid.search/index.js', '@mescius/wijmo.grid.grouppanel': 'npm:@mescius/wijmo.grid.grouppanel/index.js', '@mescius/wijmo.grid.multirow': 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"npm:react-use-event-hook/dist/esm/useEvent.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);