Demos
Wijmo(React)
CollectionView
Creating Views
Sorting
Overview

CollectionView Sorting (React)

The CollectionView has a sortDescriptions property that controls the sorting behavior of items in the collection. The sample below demonstrates some simple sorting scenarios and updates the sortDescriptions property with SortDescription objects to apply the sort.

This example uses React.

JavaScript
Angular
Vue
React
app.jsx
index.html
app.css
data.jsx
Copy to CodeMine
import 'bootstrap.css';
import '@mescius/wijmo.styles/wijmo.css';
import ReactDOM from 'react-dom/client';
import React, { useEffect } from 'react';
import * as wijmo from '@mescius/wijmo';
import * as wjGrid from '@mescius/wijmo.react.grid';
import './app.css';
import { data } from './data';
const view = new wijmo.CollectionView(data);
function App() {
    useEffect(() => {
        document.addEventListener('change', (e) => {
            // remove the old sort
            view.sortDescriptions.clear();
            //
            // add the new sorts
            e.target.value.split(',').forEach((prop) => {
                // Sort country in ascending order, other in descending order
                view.sortDescriptions.push(new wijmo.SortDescription(prop, prop === 'country'));
            });
        });
    }, []);
    return (<div className="container-fluid">
      <label>
        <input type="radio" name="sort" value="" defaultChecked={true}/>
        No Sort
      </label>
      <label>
        <input type="radio" name="sort" value="country"/>
        Sort by Country
      </label>
      <label>
        <input type="radio" name="sort" value="country,sales"/>
        Sort by Country and Sales
      </label>
      <label>
        <input type="radio" name="sort" value="country,sales,downloads"/>
        Sort by Country, Sales, and Downloads
      </label>
      <p>
        Result:
      </p>
      <wjGrid.FlexGrid itemsSource={view} showSort={true} allowSorting={false} alternatingRowStep={0} headersVisibility="Column"/>
    </div>);
}
const container = document.getElementById('app');
if (container) {
    const root = ReactDOM.createRoot(container);
    root.render(<App />);
}
import 'bootstrap.css'; import '@mescius/wijmo.styles/wijmo.css'; import ReactDOM from 'react-dom/client'; import React, { useEffect } from 'react'; import * as wijmo from '@mescius/wijmo'; import * as wjGrid from '@mescius/wijmo.react.grid'; import './app.css'; import { data } from './data'; const view = new wijmo.CollectionView(data); function App() { useEffect(() => { document.addEventListener('change', (e) => { // remove the old sort view.sortDescriptions.clear(); // // add the new sorts e.target.value.split(',').forEach((prop) => { // Sort country in ascending order, other in descending order view.sortDescriptions.push(new wijmo.SortDescription(prop, prop === 'country')); }); }); }, []); return (<div className="container-fluid"> <label> <input type="radio" name="sort" value="" defaultChecked={true}/> No Sort </label> <label> <input type="radio" name="sort" value="country"/> Sort by Country </label> <label> <input type="radio" name="sort" value="country,sales"/> Sort by Country and Sales </label> <label> <input type="radio" name="sort" value="country,sales,downloads"/> Sort by Country, Sales, and Downloads </label> <p> Result: </p> <wjGrid.FlexGrid itemsSource={view} showSort={true} allowSorting={false} alternatingRowStep={0} headersVisibility="Column"/> </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 CollectionView Sorting Overview</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; } label { width: 100% }
function getData() { let countries = ['US', 'Germany', 'UK', 'Japan', 'Italy', 'Greece'], data = []; // for (let i = 0; i < 1000; i++) { data.push({ country: countries[i % countries.length], downloads: Math.round(Math.random() * 20000), sales: Math.random() * 10000, expenses: Math.random() * 5000 }); } // return data; } export const data = getData();
(function (global) { window.process = { env: { NODE_ENV: "production" } } 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', 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'systemjs-babel-build':'npm:systemjs-plugin-babel/systemjs-babel-browser.js', "react-use-event-hook": "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);