Sorting Columns (React)

The FlexGrid control relies on the CollectionView class for sorting data.

Use the grid's allowSorting property to determine whether users should be able to sort the grid by clicking the column header cells:

AllowSorting.None: Users cannot sort the grid by clicking the column headers.

AllowSorting.SingleColumn: Users may sort the grid by a single column at a time. Clicking the column header sorts the column or flips the sort direction. Ctrl+Click removes the sort. (This is the default setting.)

AllowSorting.MultiColumn: Users may sort the grid by multiple columns at a time. Clicking the column header sorts the column or flips the sort direction. Ctrl+Click removes the sort for that column. Ctrl+Shift+Click removes all sorts.

Learn about FlexGrid | FlexGrid API Reference

This example uses React.

import 'bootstrap.css'; import '@mescius/wijmo.styles/wijmo.css'; import ReactDOM from 'react-dom/client'; import React, { useState } from 'react'; import { CollectionView } from '@mescius/wijmo'; import { FlexGrid } from '@mescius/wijmo.react.grid'; import { AllowSorting } from '@mescius/wijmo.grid'; import { ComboBox } from '@mescius/wijmo.react.input'; import './app.css'; import { allowSortingOptions, data } from './data'; const view = new CollectionView(data); function App() { const [allowSorting, setAllowSorting] = useState(AllowSorting.MultiColumn); return (<div className="container-fluid"> <label> allowSorting:{' '} <ComboBox itemsSource={allowSortingOptions} selectedIndex={allowSorting} selectedIndexChanged={(sender) => { view.sortDescriptions.clear(); setAllowSorting(sender.selectedIndex); }}/> </label> <FlexGrid itemsSource={view} allowSorting={allowSorting}/> </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 Sorting</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: 250px; margin: 10px 0; } label { display: block; }
const getData = () => { let countries = ['US', 'Germany', 'UK', 'Japan', 'Italy', 'Greece'], data = []; for (let i = 0; i < 200; i++) { data.push({ id: i, country: countries[i % countries.length], downloads: Math.round(Math.random() * 20000), sales: Math.random() * 10000, expenses: Math.random() * 5000, num1: Math.random() * 5000, num2: Math.random() * 5000, num3: Math.random() * 5000, num4: Math.random() * 5000, num5: Math.random() * 5000, }); } return data; }; export const allowSortingOptions = ['None', 'SingleColumn', 'MultiColumn']; export const data = getData();
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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);