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Tree List

Column Resizing

Documentation

The widget allows a user to resize columns at runtime. They can be resized in two different modes: by changing the width of the next column or the width of the widget. To switch the current mode, use the «Column resizing mode» select box.

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import React from 'react'; import { TreeList, Column } from 'devextreme-react/tree-list'; import { SelectBox } from 'devextreme-react/select-box'; import { employees } from './data.js'; const resizingModes = ['nextColumn', 'widget']; const expandedRowKeys = [1, 3, 6]; class App extends React.Component { constructor(props) { super(props); this.state = { columnResizingMode: 'nextColumn' }; this.onResizingModeChanged = this.onResizingModeChanged.bind(this); } render() { const { columnResizingMode } = this.state; return ( <div> <TreeList id={'employees'} dataSource={employees} allowColumnResizing={true} columnResizingMode={columnResizingMode} columnMinWidth={50} columnAutoWidth={true} showRowLines={true} showBorders={true} defaultExpandedRowKeys={expandedRowKeys} keyExpr={'ID'} parentIdExpr={'Head_ID'} > <Column dataField={'Title'} caption={'Position'} /> <Column dataField={'Full_Name'} /> <Column dataField={'City'} /> <Column dataField={'State'} /> <Column dataField={'Hire_Date'} dataType={'date'} /> </TreeList> <div className={'options'}> <div className={'caption'}>Options</div> <div className={'option'}> <span>Column resizing mode:</span> <SelectBox items={resizingModes} value={columnResizingMode} width={250} onValueChanged={this.onResizingModeChanged} /> </div> </div> </div> ); } onResizingModeChanged(e) { this.setState({ columnResizingMode: e.value }); } } export default App;
import React from 'react'; import ReactDOM from 'react-dom'; import App from './App.js'; ReactDOM.render( <App />, document.getElementById('app') );
<!DOCTYPE html> <html> <head> <title>DevExtreme Demo</title> <meta http-equiv="X-UA-Compatible" content="IE=edge" /> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/19.1.3/css/dx.common.css" /> <link rel="dx-theme" data-theme="generic.light" href="https://cdn3.devexpress.com/jslib/19.1.3/css/dx.light.css" /> <link rel="stylesheet" type ="text/css" href="styles.css" /> <script src="https://unpkg.com/core-js@2.4.1/client/shim.min.js"></script> <script src="https://unpkg.com/systemjs@0.21.3/dist/system.js"></script> <script type="text/javascript" src="config.js"></script> <script type="text/javascript"> System.import('./index.js'); </script> </head> <body class="dx-viewport"> <div class="demo-container"> <div id="app"></div> </div> </body> </html>
#employees { max-height: 307px; } .options { padding: 20px; margin-top: 20px; background-color: rgba(191, 191, 191, 0.15); position: absolute; bottom: 0px; width: 100%; } .caption { font-weight: 500; font-size: 18px; } .option { margin-top: 10px; } .option > span { position: relative; top: 2px; margin-right: 10px; } .option > .dx-widget { display: inline-block; vertical-align: middle; }
export const employees = [{ 'ID': 1, 'Head_ID': 0, 'Full_Name': 'John Heart', 'Prefix': 'Mr.', 'Title': 'CEO', 'City': 'Los Angeles', 'State': 'California', 'Email': 'jheart@dx-email.com', 'Skype': 'jheart_DX_skype', 'Mobile_Phone': '(213) 555-9392', 'Birth_Date': '1964-03-16', 'Hire_Date': '1995-01-15' }, { 'ID': 2, 'Head_ID': 1, 'Full_Name': 'Samantha Bright', 'Prefix': 'Dr.', 'Title': 'COO', 'City': 'Los Angeles', 'State': 'California', 'Email': 'samanthab@dx-email.com', 'Skype': 'samanthab_DX_skype', 'Mobile_Phone': '(213) 555-2858', 'Birth_Date': '1966-05-02', 'Hire_Date': '2004-05-24' }, { 'ID': 3, 'Head_ID': 1, 'Full_Name': 'Arthur Miller', 'Prefix': 'Mr.', 'Title': 'CTO', 'City': 'Denver', 'State': 'Colorado', 'Email': 'arthurm@dx-email.com', 'Skype': 'arthurm_DX_skype', 'Mobile_Phone': '(310) 555-8583', 'Birth_Date': '1972-07-11', 'Hire_Date': '2007-12-18' }, { 'ID': 4, 'Head_ID': 1, 'Full_Name': 'Robert Reagan', 'Prefix': 'Mr.', 'Title': 'CMO', 'City': 'Bentonville', 'State': 'Arkansas', 'Email': 'robertr@dx-email.com', 'Skype': 'robertr_DX_skype', 'Mobile_Phone': '(818) 555-2387', 'Birth_Date': '1974-09-07', 'Hire_Date': '2002-11-08' }, { 'ID': 5, 'Head_ID': 1, 'Full_Name': 'Greta Sims', 'Prefix': 'Ms.', 'Title': 'HR Manager', 'City': 'Atlanta', 'State': 'Georgia', 'Email': 'gretas@dx-email.com', 'Skype': 'gretas_DX_skype', 'Mobile_Phone': '(818) 555-6546', 'Birth_Date': '1977-11-22', 'Hire_Date': '1998-04-23' }, { 'ID': 6, 'Head_ID': 3, 'Full_Name': 'Brett Wade', 'Prefix': 'Mr.', 'Title': 'IT Manager', 'City': 'Reno', 'State': 'Nevada', 'Email': 'brettw@dx-email.com', 'Skype': 'brettw_DX_skype', 'Mobile_Phone': '(626) 555-0358', 'Birth_Date': '1968-12-01', 'Hire_Date': '2009-03-06' }, { 'ID': 7, 'Head_ID': 5, 'Full_Name': 'Sandra Johnson', 'Prefix': 'Mrs.', 'Title': 'Controller', 'City': 'Beaver', 'State': 'Utah', 'Email': 'sandraj@dx-email.com', 'Skype': 'sandraj_DX_skype', 'Mobile_Phone': '(562) 555-2082', 'Birth_Date': '1974-11-15', 'Hire_Date': '2005-05-11' }, { 'ID': 8, 'Head_ID': 4, 'Full_Name': 'Ed Holmes', 'Prefix': 'Dr.', 'Title': 'Sales Manager', 'City': 'Malibu', 'State': 'California', 'Email': 'edwardh@dx-email.com', 'Skype': 'edwardh_DX_skype', 'Mobile_Phone': '(310) 555-1288', 'Birth_Date': '1973-07-14', 'Hire_Date': '2005-06-19' }, { 'ID': 9, 'Head_ID': 3, 'Full_Name': 'Barb Banks', 'Prefix': 'Mrs.', 'Title': 'Support Manager', 'City': 'Phoenix', 'State': 'Arizona', 'Email': 'barbarab@dx-email.com', 'Skype': 'barbarab_DX_skype', 'Mobile_Phone': '(310) 555-3355', 'Birth_Date': '1979-04-14', 'Hire_Date': '2002-08-07' }, { 'ID': 10, 'Head_ID': 2, 'Full_Name': 'Kevin Carter', 'Prefix': 'Mr.', 'Title': 'Shipping Manager', 'City': 'San Diego', 'State': 'California', 'Email': 'kevinc@dx-email.com', 'Skype': 'kevinc_DX_skype', 'Mobile_Phone': '(213) 555-2840', 'Birth_Date': '1978-01-09', 'Hire_Date': '2009-08-11' }, { 'ID': 11, 'Head_ID': 5, 'Full_Name': 'Cindy Stanwick', 'Prefix': 'Ms.', 'Title': 'HR Assistant', 'City': 'Little Rock', 'State': 'Arkansas', 'Email': 'cindys@dx-email.com', 'Skype': 'cindys_DX_skype', 'Mobile_Phone': '(818) 555-6655', 'Birth_Date': '1985-06-05', 'Hire_Date': '2008-03-24' }, { 'ID': 12, 'Head_ID': 8, 'Full_Name': 'Sammy Hill', 'Prefix': 'Mr.', 'Title': 'Sales Assistant', 'City': 'Pasadena', 'State': 'California', 'Email': 'sammyh@dx-email.com', 'Skype': 'sammyh_DX_skype', 'Mobile_Phone': '(626) 555-7292', 'Birth_Date': '1984-02-17', 'Hire_Date': '2012-02-01' }, { 'ID': 13, 'Head_ID': 10, 'Full_Name': 'Davey Jones', 'Prefix': 'Mr.', 'Title': 'Shipping Assistant', 'City': 'Pasadena', 'State': 'California', 'Email': 'davidj@dx-email.com', 'Skype': 'davidj_DX_skype', 'Mobile_Phone': '(626) 555-0281', 'Birth_Date': '1983-03-06', 'Hire_Date': '2011-04-24' }, { 'ID': 14, 'Head_ID': 10, 'Full_Name': 'Victor Norris', 'Prefix': 'Mr.', 'Title': 'Shipping Assistant', 'City': 'Little Rock', 'State': 'Arkansas', 'Email': 'victorn@dx-email.com', 'Skype': 'victorn_DX_skype', 'Mobile_Phone': '(213) 555-9278', 'Birth_Date': '1986-07-23', 'Hire_Date': '2012-07-23' }, { 'ID': 15, 'Head_ID': 10, 'Full_Name': 'Mary Stern', 'Prefix': 'Ms.', 'Title': 'Shipping Assistant', 'City': 'Beaver', 'State': 'Utah', 'Email': 'marys@dx-email.com', 'Skype': 'marys_DX_skype', 'Mobile_Phone': '(818) 555-7857', 'Birth_Date': '1982-04-08', 'Hire_Date': '2012-08-12' }, { 'ID': 16, 'Head_ID': 10, 'Full_Name': 'Robin Cosworth', 'Prefix': 'Mrs.', 'Title': 'Shipping Assistant', 'City': 'Los Angeles', 'State': 'California', 'Email': 'robinc@dx-email.com', 'Skype': 'robinc_DX_skype', 'Mobile_Phone': '(818) 555-0942', 'Birth_Date': '1981-06-12', 'Hire_Date': '2012-09-01' }, { 'ID': 17, 'Head_ID': 9, 'Full_Name': 'Kelly Rodriguez', 'Prefix': 'Ms.', 'Title': 'Support Assistant', 'City': 'Boise', 'State': 'Idaho', 'Email': 'kellyr@dx-email.com', 'Skype': 'kellyr_DX_skype', 'Mobile_Phone': '(818) 555-9248', 'Birth_Date': '1988-05-11', 'Hire_Date': '2012-10-13' }, { 'ID': 18, 'Head_ID': 9, 'Full_Name': 'James Anderson', 'Prefix': 'Mr.', 'Title': 'Support Assistant', 'City': 'Atlanta', 'State': 'Georgia', 'Email': 'jamesa@dx-email.com', 'Skype': 'jamesa_DX_skype', 'Mobile_Phone': '(323) 555-4702', 'Birth_Date': '1987-01-29', 'Hire_Date': '2012-10-18' }, { 'ID': 19, 'Head_ID': 9, 'Full_Name': 'Antony Remmen', 'Prefix': 'Mr.', 'Title': 'Support Assistant', 'City': 'Boise', 'State': 'Idaho', 'Email': 'anthonyr@dx-email.com', 'Skype': 'anthonyr_DX_skype', 'Mobile_Phone': '(310) 555-6625', 'Birth_Date': '1986-02-19', 'Hire_Date': '2013-01-19' }, { 'ID': 20, 'Head_ID': 8, 'Full_Name': 'Olivia Peyton', 'Prefix': 'Mrs.', 'Title': 'Sales Assistant', 'City': 'Atlanta', 'State': 'Georgia', 'Email': 'oliviap@dx-email.com', 'Skype': 'oliviap_DX_skype', 'Mobile_Phone': '(310) 555-2728', 'Birth_Date': '1981-06-03', 'Hire_Date': '2012-05-14' }, { 'ID': 21, 'Head_ID': 6, 'Full_Name': 'Taylor Riley', 'Prefix': 'Mr.', 'Title': 'Network Admin', 'City': 'San Jose', 'State': 'California', 'Email': 'taylorr@dx-email.com', 'Skype': 'taylorr_DX_skype', 'Mobile_Phone': '(310) 555-7276', 'Birth_Date': '1982-08-14', 'Hire_Date': '2012-04-14' }, { 'ID': 22, 'Head_ID': 6, 'Full_Name': 'Amelia Harper', 'Prefix': 'Mrs.', 'Title': 'Network Admin', 'City': 'Los Angeles', 'State': 'California', 'Email': 'ameliah@dx-email.com', 'Skype': 'ameliah_DX_skype', 'Mobile_Phone': '(213) 555-4276', 'Birth_Date': '1983-11-19', 'Hire_Date': '2011-02-10' }, { 'ID': 23, 'Head_ID': 6, 'Full_Name': 'Wally Hobbs', 'Prefix': 'Mr.', 'Title': 'Programmer', 'City': 'Chatsworth', 'State': 'California', 'Email': 'wallyh@dx-email.com', 'Skype': 'wallyh_DX_skype', 'Mobile_Phone': '(818) 555-8872', 'Birth_Date': '1984-12-24', 'Hire_Date': '2011-02-17' }, { 'ID': 24, 'Head_ID': 6, 'Full_Name': 'Brad Jameson', 'Prefix': 'Mr.', 'Title': 'Programmer', 'City': 'San Fernando', 'State': 'California', 'Email': 'bradleyj@dx-email.com', 'Skype': 'bradleyj_DX_skype', 'Mobile_Phone': '(818) 555-4646', 'Birth_Date': '1988-10-12', 'Hire_Date': '2011-03-02' }, { 'ID': 25, 'Head_ID': 6, 'Full_Name': 'Karen Goodson', 'Prefix': 'Miss', 'Title': 'Programmer', 'City': 'South Pasadena', 'State': 'California', 'Email': 'kareng@dx-email.com', 'Skype': 'kareng_DX_skype', 'Mobile_Phone': '(626) 555-0908', 'Birth_Date': '1987-04-26', 'Hire_Date': '2011-03-14' }, { 'ID': 26, 'Head_ID': 5, 'Full_Name': 'Marcus Orbison', 'Prefix': 'Mr.', 'Title': 'Travel Coordinator', 'City': 'Los Angeles', 'State': 'California', 'Email': 'marcuso@dx-email.com', 'Skype': 'marcuso_DX_skype', 'Mobile_Phone': '(213) 555-7098', 'Birth_Date': '1982-03-02', 'Hire_Date': '2005-05-19' }, { 'ID': 27, 'Head_ID': 5, 'Full_Name': 'Sandy Bright', 'Prefix': 'Ms.', 'Title': 'Benefits Coordinator', 'City': 'Denver', 'State': 'Colorado', 'Email': 'sandrab@dx-email.com', 'Skype': 'sandrab_DX_skype', 'Mobile_Phone': '(818) 555-0524', 'Birth_Date': '1983-09-11', 'Hire_Date': '2005-06-04' }, { 'ID': 28, 'Head_ID': 6, 'Full_Name': 'Morgan Kennedy', 'Prefix': 'Mrs.', 'Title': 'Graphic Designer', 'City': 'San Fernando Valley', 'State': 'California', 'Email': 'morgank@dx-email.com', 'Skype': 'morgank_DX_skype', 'Mobile_Phone': '(818) 555-8238', 'Birth_Date': '1984-07-17', 'Hire_Date': '2012-01-11' }, { 'ID': 29, 'Head_ID': 28, 'Full_Name': 'Violet Bailey', 'Prefix': 'Ms.', 'Title': 'Jr Graphic Designer', 'City': 'La Canada', 'State': 'California', 'Email': 'violetb@dx-email.com', 'Skype': 'violetb_DX_skype', 'Mobile_Phone': '(818) 555-2478', 'Birth_Date': '1985-06-10', 'Hire_Date': '2012-01-19' }, { 'ID': 30, 'Head_ID': 5, 'Full_Name': 'Ken Samuelson', 'Prefix': 'Dr.', 'Title': 'Ombudsman', 'City': 'St. Louis', 'State': 'Missouri', 'Email': 'kents@dx-email.com', 'Skype': 'kents_DX_skype', 'Mobile_Phone': '(562) 555-9282', 'Birth_Date': '1972-09-11', 'Hire_Date': '2009-04-22' }];
System.config({ transpiler: 'plugin-babel', paths: { 'npm:': 'https://unpkg.com/' }, defaultExtension: 'js', map: { 'react': 'npm:react@16/umd/react.development.js', 'react-dom': 'npm:react-dom@16/umd/react-dom.development.js', 'prop-types': 'npm:prop-types/prop-types.js', 'devextreme': 'npm:devextreme@19.1', 'devextreme-react': 'npm:devextreme-react@19.1', 'jszip': 'npm:jszip@3.1.3/dist/jszip.min.js', 'quill': 'npm:quill@1.3.6/dist/quill.js', 'devexpress-diagram': 'npm:devexpress-diagram', // SystemJS plugins 'plugin-babel': 'npm:systemjs-plugin-babel@0/plugin-babel.js', 'systemjs-babel-build': 'npm:systemjs-plugin-babel@0/systemjs-babel-browser.js' }, packages: { 'devextreme': { defaultExtension: 'js' }, 'devextreme-react': { main: 'index.js' } }, babelOptions: { sourceMaps: false, stage0: true, react: true } });