单元格级别绑定

SpreadJS 支持单元格级别绑定,你可以将数据源的数据绑定到单元格上。

你必须创建一个单元格级别绑定的数据源, 然后使用 setBindingPath 方法来设置绑定路径到指定的单元格,并将数据源设置到表单上。例如: 你可以使用 getBindingPath 方法来获取指定单元格的绑定信息。
import * as React from 'react'; import * as ReactDOM from 'react-dom'; import '@grapecity-software/spread-sheets-resources-zh'; GC.Spread.Common.CultureManager.culture("zh-cn"); import GC from '@grapecity-software/spread-sheets'; import Panel from './panel'; import { SpreadSheets, Worksheet, Column } from '@grapecity-software/spread-sheets-react'; import './styles.css'; const {useState, useEffect} = React; let person= { name: "Wang Feng", age: 25, sex: "Male", address: { postCode: "710075" } }, sheet; const App = () => { const [name, setName] = useState('Wang Feng'); const [age, setAge] = useState(25); const [sex, setSex] = useState('Male'); const [postCode, setPostCode] = useState('710075'); const [bindingPath, setBindingPath] = useState(''); useEffect(() => { person.name = name; person.age = age; person.sex = sex; person.address.postCode = postCode; sheet.repaint(); }, [name, age, sex, postCode]); return ( <div class="sample-tutorial"> <div class="sample-spreadsheets"> <SpreadSheets workbookInitialized={spread => initSpread(spread, setName, setAge, setSex, setPostCode, setBindingPath)}> <Worksheet> <Column width={120}></Column> <Column width={120}></Column> <Column width={120}></Column> </Worksheet> </SpreadSheets> </div> <Panel name={name} age={age} sex={sex} postCode={postCode} bindingPath={bindingPath} setName={setName} setAge={setAge} setSex={setSex} setPostCode={setPostCode} setBindingPath={setBindingPath} ></Panel> </div> ) } function initSpread(spread, setName, setAge, setSex, setPostCode, setBindingPath) { let spreadNS = GC.Spread.Sheets; sheet = spread.sheets[0]; sheet.suspendPaint(); sheet.setValue(0, 0, 'cell-binding'); sheet.setValue(2, 1, 'Name'); sheet.setValue(3, 1, 'Age'); sheet.setValue(4, 1, 'Sex'); sheet.setValue(5, 1, 'Address.postcode'); let source = new spreadNS.Bindings.CellBindingSource(person); sheet.setBindingPath(2, 2, "name"); sheet.setBindingPath(3, 2, "age"); sheet.setBindingPath(4, 2, "sex"); sheet.setBindingPath(5, 2, "address.postCode"); sheet.setDataSource(source); sheet.setSelection(2, 2, 1, 1); let path = sheet.getBindingPath(2, 2); sheet.getRange(2, 2, 4, 1).backColor("rgb(208,206,206)"); setBindingPath(path || ""); sheet.bind(spreadNS.Events.SelectionChanged, function () { let activeCell = sheet.getSelections()[0]; let path = sheet.getBindingPath(activeCell.row, activeCell.col); setBindingPath(path || ""); }); sheet.bind(spreadNS.Events.CellChanged, function () { setName(person.name || ""); setAge(person.age || ""); setSex(person.sex || ""); setPostCode(person.address.postCode || ""); }); sheet.resumePaint(); } ReactDOM.render(<App />, document.getElementById('app'));
import * as React from 'react'; export default function Panel (props) { const { name, setName, age, setAge, sex, setSex, postCode, setPostCode, bindingPath } = props; return ( <div class="options-container"> <div class="option-row"> <label style={{ backgroundColor: '#F4F8EB' }}>Select one of the gray cells to get its binding. You can also change the Person object below to see it change in the Spread instance: change any of the text in the text boxes below.</label> </div> <div class="option-row"> <label>Name:&nbsp;&nbsp;</label> <input type="text" onChange={(e) => { setName(e.target.value) }} value={name} /> <label>Age:&nbsp;&nbsp;</label> <input type="text" onChange={(e) => { setAge(isNaN(parseInt(e.target.value))? undefined:parseInt(e.target.value)) }} value={age} /> <label>Sex:&nbsp;&nbsp;</label> <input type="text" onChange={(e) => { setSex(e.target.value) }} value={sex} /> <label>Postcode:&nbsp;&nbsp;</label> <input type="text" onChange={(e) => { setPostCode(e.target.value) }} value={postCode} /> <label>GetBindingPath:&nbsp;&nbsp;</label> <label style={{ color: 'darkgreen' }}>{bindingPath}</label> </div> </div> ); }
<!doctype html> <html style="height:100%;font-size:14px;"> <head> <meta charset="utf-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0" /> <link rel="stylesheet" type="text/css" href="$DEMOROOT$/zh/react/node_modules/@grapecity-software/spread-sheets/styles/gc.spread.sheets.excel2013white.css"> <!-- SystemJS --> <script src="$DEMOROOT$/zh/react/node_modules/systemjs/dist/system.src.js"></script> <script src="systemjs.config.js"></script> <script> System.import('$DEMOROOT$/zh/lib/react/license.js').then(function() { System.import('./src/app'); }); </script> </head> <body> <div id="app" style="height: 100%;"></div> </body> </html>
.sample-tutorial { position: relative; height: 100%; overflow: hidden; } .sample-spreadsheets { width: calc(100% - 280px); height: 100%; overflow: hidden; float: left; } .options-container { float: right; width: 280px; padding: 12px; height: 100%; box-sizing: border-box; background: #fbfbfb; overflow: auto; } .option-row { font-size: 14px; padding: 5px; margin-top: 10px; } label { display: block; margin-bottom: 6px; } input { padding: 4px 6px; } input[type=button] { margin-top: 6px; display: block; } input[type=text] { margin-top: 6px; margin-bottom: 6px; display: block; } body { position: absolute; top: 0; bottom: 0; left: 0; right: 0; }
(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: { '@grapecity-software/spread-sheets': 'npm:@grapecity-software/spread-sheets/index.js', '@grapecity-software/spread-sheets-resources-zh': 'npm:@grapecity-software/spread-sheets-resources-zh/index.js', '@grapecity-software/spread-sheets-react': 'npm:@grapecity-software/spread-sheets-react/index.js', '@grapecity-software/jsob-test-dependency-package/react-components': 'npm:@grapecity-software/jsob-test-dependency-package/react-components/index.js', 'react': 'npm:react/umd/react.production.min.js', 'react-dom': 'npm:react-dom/umd/react-dom.production.min.js', 'css': 'npm:systemjs-plugin-css/css.js', 'plugin-babel': 'npm:systemjs-plugin-babel/plugin-babel.js', 'systemjs-babel-build': 'npm:systemjs-plugin-babel/systemjs-babel-browser.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);