Field Formats (React)

The PivotField.format property determines how raw values are formatted for display and also for breaking values into groups. This example shows how changing the format property of a dimension fields affects data grouping. If the field format shows the quarter, the data is grouped by quarter. If it shows the month, the data is grouped by month.

Learn about OLAP | PivotPanel Documentation | PivotPanel API Reference

This example uses React.

import 'bootstrap.css'; import '@mescius/wijmo.styles/wijmo.css'; import ReactDOM from 'react-dom/client'; import React, { useRef } from 'react'; import '@mescius/wijmo.touch'; // support drag/drop on touch devices import * as Olap from '@mescius/wijmo.react.olap'; import * as wjInput from '@mescius/wijmo.react.input'; import * as wjcOlap from '@mescius/wijmo.olap'; import './app.css'; import { getData } from './data'; const ng = new wjcOlap.PivotEngine({ autoGenerateFields: false, fields: [ { binding: 'date', header: 'Year', format: 'yyyy' }, { binding: 'date', header: 'Period', format: '"Q"q' }, { binding: 'buyer', header: 'Person' }, { binding: 'type', header: 'Category' }, { binding: 'amount', header: 'Total', format: 'c0', aggregate: 'Sum' }, { binding: 'amount', header: 'Average', format: 'c0', aggregate: 'Avg' }, ], itemsSource: getData(1000), showRowTotals: 'Subtotals', valueFields: ['Total', 'Average'], rowFields: ['Year', 'Period'] // by Year and Quarter }); function App() { const fld = useRef(ng.fields.getField('Period')); const onTextChanged = (combox) => { fld.current.format = combox.selectedValue; }; return (<div className="container-fluid"> <Olap.PivotGrid itemsSource={ng}/> <p> Customize the "Period" field by changing its format: </p> <wjInput.ComboBox itemsSource={[ { name: 'Quarter ("Q"q)', value: '"Q"q' }, { name: 'Fiscal Quarter ("FQ"u)', value: '"FQ"u' }, { name: 'Long Month (MMMM)', value: 'MMMM' }, { name: 'Short Month (MMM)', value: 'MMM' }, { name: 'Month Number (M )', value: 'M ' }, ]} displayMemberPath="name" selectedValuePath="value" textChanged={onTextChanged}/> </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 OLAP Fields Format</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>
.container>label { width: 120px; text-align: right; } .container>.wj-control { margin-bottom: 6px; } .wj-flexgrid { height: 200px; }
import * as wjcCore from '@mescius/wijmo'; export function getData(cnt) { var today = new Date(), buyers = 'Mom,Dad,Kelly,Sheldon'.split(','), types = 'Food,Clothes,Fuel,Books,Sports,Music'.split(','), data = []; for (var i = 0; i < cnt; i++) { data.push({ date: wjcCore.DateTime.addDays(today, -Math.random() * 365 * 3), buyer: randomItem(buyers), type: randomItem(types), amount: 20 + Math.random() * 1000 }); } return data; } function randomItem(arr) { return arr[Math.floor(Math.random() * arr.length)]; }
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