PivotEngine 정렬 컨트롤 (React)

PivotEngine은 데이터 요약을 생성할 때 치수 필드를 자동으로 정렬합니다. 측정값 필드는 기본적으로 정렬하지 않습니다. 코드에서 필드의 sort 속성을 설정하여 행 필드와 열 필드의 정렬 방향을 변경할 수 있습니다. 측정값 필드는 기본적으로 정렬되지 않습니다. 엔진 pivotView 컬렉션의 sortDescriptions 속성을 변경하면 정렬 방향을 설정할 수 있습니다. 이 예제는 치수 및 측정값 필드에 정렬을 적용하는 방법을 보여 줍니다.

OLAP 알아보기 | PivotPanel Documentation | PivotPanel API Reference

이 데모는 React를 기반으로합니다.

import 'bootstrap.css'; import '@mescius/wijmo.styles/wijmo.css'; import ReactDOM from 'react-dom/client'; import React, { useRef } from 'react'; import useEvent from 'react-use-event-hook'; 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 wjcCore from '@mescius/wijmo'; import * as wjcOlap from '@mescius/wijmo.olap'; import './app.css'; import { getData } from './data'; const ng = new wjcOlap.PivotEngine({ itemsSource: getData(100), rowFields: ['Country', 'Product'], valueFields: ['Sales', 'Expenses'] }); function App() { const pivotGridRef = useRef(null); const sortSalesRef = useRef(null); const sortExpensesRef = useRef(null); const sortOptions = ['Ascending', 'Descending']; const sortOptions2 = ['None', 'Ascending', 'Descending']; const initializePivotGrid = useEvent((pivotGrid) => { pivotGridRef.current = pivotGrid; }); const initializeSortSales = useEvent((combo) => { sortSalesRef.current = combo; }); const initializeSortExpenses = useEvent((combo) => { sortExpensesRef.current = combo; }); const onCountrySelectedIndexChanged = useEvent((combo) => { ng.fields.getField('Country').descending = combo.selectedIndex == 1; }); const onProductSelectedIndexChanged = useEvent((combo) => { ng.fields.getField('Product').descending = combo.selectedIndex == 1; }); const onSubtotalsClick = (e) => { ng.showRowTotals = e.target.checked ? wjcOlap.ShowTotals.Subtotals : wjcOlap.ShowTotals.GrandTotals; }; const updateMeasureSort = () => { let sd = ng.pivotView.sortDescriptions; sd.clear(); addMeasureSort('Sales', sortSalesRef.current.text); addMeasureSort('Expenses', sortExpensesRef.current.text); }; const addMeasureSort = (fieldName, sortDirection) => { if (sortDirection != 'None') { let sd = ng.pivotView.sortDescriptions, cols = pivotGridRef.current.columns; for (let c = 0; c < cols.length; c++) { let binding = cols[c].binding; if (binding.indexOf(fieldName) == 0) { sd.push(new wjcCore.SortDescription(binding, sortDirection == 'Ascending')); } } } }; return (<div className="container-fluid"> <div className="row"> <div className="col-sm-4 panel"> <h4 className="sample-h4"> Sort Dimension fields </h4> <label> Country: <wjInput.ComboBox itemsSource={sortOptions} selectedIndexChanged={onCountrySelectedIndexChanged}/> </label> <label> Product: <wjInput.ComboBox itemsSource={sortOptions} selectedIndexChanged={onProductSelectedIndexChanged}/> </label> <h4 className="sample-h4"> Sort Measure fields </h4> <label> Sales: <wjInput.ComboBox itemsSource={sortOptions2} initialized={initializeSortSales} selectedIndexChanged={updateMeasureSort}/> </label> <label> Expenses: <wjInput.ComboBox itemsSource={sortOptions2} initialized={initializeSortExpenses} selectedIndexChanged={updateMeasureSort}/> </label> <label> Subtotals: <input id="subtotals" type="checkbox" onClick={onSubtotalsClick}/> </label> </div> <div className="col-sm-8"> <Olap.PivotGrid itemsSource={ng} initialized={initializePivotGrid}/> </div> </div> </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 Sort</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-pivotgrid { box-shadow: 0 10px 20px rgba(0, 0, 0, 0.19), 0 6px 6px rgba(0, 0, 0, 0.23); } .panel label { display: block; } .panel label .wj-combobox { font-weight: normal; } h4.sample-h4 { margin-top: 20pt; }
export function getData(cnt) { var countries = 'US,Germany,UK,Japan,Italy'.split(','), products = 'Widgets,Gadgets,Doohickeys'.split(','), data = []; for (var i = 0; i < cnt; i++) { data.push({ country: countries[i % countries.length], product: products[i % products.length], downloads: Math.round(Math.random() * 20000), sales: Math.random() * 10000, expenses: Math.random() * 5000 }); } return data; }
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