Master Detail (React)

The simplest way to deal with hierarchical data is the master-detail model. Use a control to select the main item and one or more additional controls to show the main item's details.

Learn about FlexGrid | DetailView 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 useEvent from 'react-use-event-hook'; import { CollectionView, Control, isString } from '@mescius/wijmo'; import { FlexGrid } from '@mescius/wijmo.react.grid'; import { ComboBox, InputDate, InputNumber } from '@mescius/wijmo.react.input'; import './app.css'; import { countries, data, products } from './data'; function App() { const [detailView, setDetailView] = useState(null); const countriesComboRef = useRef(null); const theGridMasterRef = useRef(null); const initCountriesCombo = useEvent((countriesCombo) => { countriesComboRef.current = countriesCombo; setDetailView(new CollectionView(data, { filter: (item) => { return item.country === countriesComboRef.current.text; } })); }); const onCountriesSelectedIndexChanged = useEvent(() => { detailView.refresh(); }); const initGridMaster = useEvent((theGridMaster) => { theGridMasterRef.current = theGridMaster; onSelectionChanged(); }); const onSelectionChanged = useEvent(() => { if (theGridMasterRef.current) { var item = theGridMasterRef.current.collectionView.currentItem; var bndCtls = document.querySelectorAll(".bnd-ctl"); for (var i = 0; i < bndCtls.length; i++) { var host = bndCtls[i]; var prop = host.id.substr(3).toLowerCase(); var ctl = Control.getControl(host); if (isString(item[prop])) { ctl.text = item[prop]; } else { ctl.value = item[prop]; } } } }); const setProperty = (prop, sender) => { var val = prop === "country" || prop === "product" || prop === "date" ? sender.text : sender.value; var v = theGridMasterRef.current.collectionView; v.editItem(v.currentItem); v.currentItem[prop] = val; v.commitEdit(); }; return (<div className="container-fluid"> <p> For example, the ComboBox below is used as a master control. Select a country from the combo and the grid below will show the items in that country: </p> <label>Select a country: <ComboBox initialized={initCountriesCombo} itemsSource={countries} selectedIndexChanged={onCountriesSelectedIndexChanged}/> </label> <FlexGrid itemsSource={detailView}/> <p> In the next example, The FlexGrid is used as the master control. Select an item on the grid and see the details in the controls below: </p> <h3>Master</h3> <FlexGrid initialized={initGridMaster} itemsSource={data} selectionMode={'Row'} isReadOnly={true} selectionChanged={onSelectionChanged}/> <h3>Detail</h3> <table className="tbl-spaced"> <tbody> <tr> <td>Country:</td> <td> <ComboBox itemsSource={countries} className="bnd-ctl" id="theCountry" textChanged={(sender) => setProperty('country', sender)}/> </td> </tr> <tr> <td>Product:</td> <td> <ComboBox itemsSource={products} className="bnd-ctl" id="theProduct" textChanged={(sender) => setProperty('product', sender)}/> </td> </tr> <tr> <td>Date:</td> <td> <InputDate className="bnd-ctl" id="theDate" textChanged={(sender) => setProperty('date', sender)}/> </td> </tr> <tr> <td>Sales:</td> <td> <InputNumber className="bnd-ctl" id="theSales" format="'n2'" step={10} valueChanged={(sender) => setProperty('sales', sender)}/> </td> </tr> <tr> <td>Expenses:</td> <td> <InputNumber className="bnd-ctl" id="theExpenses" format="'n2'" step={10} valueChanged={(sender) => setProperty('expenses', sender)}/> </td> </tr> </tbody> </table> </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 Master-Detail Separate 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: 220px; margin: 6px 0px; } .tbl-spaced td { vertical-align: middle; margin: 3px; }
import { DateTime } from '@mescius/wijmo'; function getData() { var data = []; for (var i = 0; i < 50; i++) { data.push({ id: i, country: countries[Math.floor(Math.random() * countries.length)], product: products[Math.floor(Math.random() * products.length)], date: DateTime.addDays(new Date(), i), sales: Math.random() * 10000, expenses: Math.random() * 5000 }); } return data; } export const countries = ['US', 'Germany', 'UK', 'Japan', 'Italy', 'Greece']; export const products = ['Phones', 'Cars', 'Stereos', 'Watches', 'Computers']; export const data = getData();
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