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.

This example uses React.

import "@grapecity/wijmo.styles/wijmo.css"; import "bootstrap.css"; import "./app.css"; // import * as React from 'react'; import * as ReactDOM from 'react-dom'; // import { CollectionView, Control, DateTime, isString } from "@grapecity/wijmo"; import { FlexGrid } from "@grapecity/wijmo.react.grid"; import { ComboBox, InputDate, InputNumber } from "@grapecity/wijmo.react.input"; class App extends React.Component { constructor(props) { super(props); this.state = { countries: "US,Germany,UK,Japan,Italy,Greece".split(","), products: "Phones,Cars,Stereos,Watches,Computers".split(","), gridData: [], detailView: null }; } render() { 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={this.initCountriesCombo.bind(this)} itemsSource={this.state.countries} selectedIndexChanged={this.onCountriesSelectedIndexChanged.bind(this)}/> </label> <FlexGrid itemsSource={this.state.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={this.initGridMaster.bind(this)} itemsSource={this.state.gridData} selectionMode={'Row'} isReadOnly={true} selectionChanged={this.onSelectionChanged.bind(this)}/> <h3>Detail</h3> <table className="tbl-spaced"> <tr> <td>Country:</td> <td> <ComboBox itemsSource={this.state.countries} className="bnd-ctl" id="theCountry" textChanged={this.setProperty.bind(this, 'country')}/> </td> </tr> <tr> <td>Product:</td> <td> <ComboBox itemsSource={this.state.products} className="bnd-ctl" id="theProduct" textChanged={this.setProperty.bind(this, 'product')}/> </td> </tr> <tr> <td>Date:</td> <td> <InputDate className="bnd-ctl" id="theDate" textChanged={this.setProperty.bind(this, 'date')}/> </td> </tr> <tr> <td>Sales:</td> <InputNumber className="bnd-ctl" id="theSales" format="'n2'" step={10} valueChanged={this.setProperty.bind(this, 'sales')}/> </tr> <tr> <td>Expenses:</td> <InputNumber className="bnd-ctl" id="theExpenses" format="'n2'" step={10} valueChanged={this.setProperty.bind(this, 'expenses')}/> </tr> </table> </div>; } componentDidMount() { this.setState({ gridData: this.getData(), detailView: new CollectionView(this.getData(), { filter: (item) => { return item.country === this.countriesCombo.text; } }) }); } initCountriesCombo(countriesCombo) { this.countriesCombo = countriesCombo; } onCountriesSelectedIndexChanged() { this.state.detailView.refresh(); } initGridMaster(theGridMaster) { this.theGridMaster = theGridMaster; } onSelectionChanged() { var item = this.theGridMaster.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]; } } } setProperty(prop, sender) { var val = prop === "country" || prop === "product" ? sender.text : sender.value; var v = this.theGridMaster.collectionView; v.editItem(v.currentItem); v.currentItem[prop] = val; v.commitEdit(); } getData() { var data = [], countries = this.state.countries, products = this.state.products; 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; } } ReactDOM.render(<App />, document.getElementById('app'));
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>GrapeCity Wijmo FlexGrid Master-Detail Separate Grids</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- SystemJS --> <script src="node_modules/systemjs/dist/system.src.js"></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; } body { margin-bottom: 24pt; }
(function (global) { 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', '@grapecity/wijmo': 'npm:@grapecity/wijmo/index.js', '@grapecity/wijmo.input': 'npm:@grapecity/wijmo.input/index.js', '@grapecity/wijmo.styles': 'npm:@grapecity/wijmo.styles', '@grapecity/wijmo.cultures': 'npm:@grapecity/wijmo.cultures', '@grapecity/wijmo.chart': 'npm:@grapecity/wijmo.chart/index.js', '@grapecity/wijmo.chart.analytics': 'npm:@grapecity/wijmo.chart.analytics/index.js', '@grapecity/wijmo.chart.animation': 'npm:@grapecity/wijmo.chart.animation/index.js', '@grapecity/wijmo.chart.annotation': 'npm:@grapecity/wijmo.chart.annotation/index.js', '@grapecity/wijmo.chart.finance': 'npm:@grapecity/wijmo.chart.finance/index.js', '@grapecity/wijmo.chart.finance.analytics': 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packages: { src: { defaultExtension: 'jsx' }, "node_modules": { defaultExtension: 'js' }, } }); })(this);