초기 상태 (React)

기본적으로 TreeView는 데이터에 바인딩된 경우 각 수준의 첫 번째 노드를 확장하고, 다른 노드를 모두 축소합니다.

Wijmo 알아보기 | TreeView API Reference

이 데모는 React를 기반으로합니다.

import 'bootstrap.css'; import '@mescius/wijmo.styles/wijmo.css'; import ReactDOM from 'react-dom/client'; import React from 'react'; import * as wjNav from '@mescius/wijmo.react.nav'; import './app.css'; import { data } from './data'; function App() { const theTreeSelectedLoadedItems = (s) => { s.selectedItem = findItem(s.itemsSource, "Solar Panel"); }; const onTreeCollapsedLoadedItems = (s) => { s.collapseToLevel(0); }; const onTreeExpandedLoadedItems = (s) => { s.collapseToLevel(10); }; const findItem = (items, str) => { for (var i = 0; items && i < items.length; i++) { if (items[i].header.indexOf(str) !== -1) { return items[i]; } const result = findItem(items[i].items, str); if (result) { return result; } } return null; }; return (<div className="container-fluid"> <wjNav.TreeView itemsSource={data}/> <h2>Selecting a default item</h2> <p> If you select an item when the tree loads, it will automatically ensure the selected node is visible, expanding the tree and scrolling as needed. In this case, we selected the 'Solar Panel' item: </p> <wjNav.TreeView itemsSource={data} loadedItems={theTreeSelectedLoadedItems}/> <h2>Collapsing to a given Level</h2> <p> Use the <b>collapseToLevel</b> method to collapse or expand the tree to a given level when it loads. For example, the trees below start totally collapsed and totally expanded: </p> <wjNav.TreeView itemsSource={data} loadedItems={onTreeCollapsedLoadedItems}/> <wjNav.TreeView itemsSource={data} loadedItems={onTreeExpandedLoadedItems}/> </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 TreeView Initial State</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>
/* default trees on this sample */ .container-fluid .wj-treeview { display: block; width: 80%; max-height: 300px; font-size: 120%; margin-bottom: 8px; padding: 6px; margin: 12pt; background: #f0f0f0; box-shadow: 0 3px 6px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.23); }
function getData() { return [ { header: 'Electronics', img: 'resources/electronics.png', items: [ { header: 'Trimmers/Shavers' }, { header: 'Tablets' }, { header: 'Phones', img: 'resources/phones.png', items: [ { header: 'Apple' }, { header: 'Motorola', newItem: true }, { header: 'Nokia' }, { header: 'Samsung' } ] }, { header: 'Speakers', newItem: true }, { header: 'Monitors' } ] }, { header: 'Toys', img: 'resources/toys.png', items: [ { header: 'Shopkins' }, { header: 'Train Sets' }, { header: 'Science Kit', newItem: true }, { header: 'Play-Doh' }, { header: 'Crayola' } ] }, { header: 'Home', img: 'resources/home.png', items: [ { header: 'Coffee Maker' }, { header: 'Breadmaker', newItem: true }, { header: 'Solar Panel', newItem: true }, { header: 'Work Table' }, { header: 'Propane Grill' } ] } ]; } 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);