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Data Grid

Multiple Record Selection API

DataGrid has the following API for multiple record selection:

In this demo, selectAll() or selectRows(keys, preserve) is called when you change the SelectBox value and clearSelection() is called when you click the Clear Selection button.

Backend API
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import React from 'react'; import DataGrid, { Column, Selection, Toolbar, Item, } from 'devextreme-react/data-grid'; import SelectBox from 'devextreme-react/select-box'; import Button from 'devextreme-react/button'; import { employees } from './data.js'; const titles = ['All', 'Dr.', 'Mr.', 'Mrs.', 'Ms.']; class App extends React.Component { constructor(props) { super(props); this.dataGrid = null; this.selectionChangedBySelectBox = false; this.state = { prefix: '', selectedEmployeeNames: 'Nobody has been selected', selectedRowKeys: [], }; this.onClearButtonClicked = this.onClearButtonClicked.bind(this); this.onSelectionChanged = this.onSelectionChanged.bind(this); this.onSelectionFilterChanged = this.onSelectionFilterChanged.bind(this); } render() { const { prefix, selectedRowKeys, selectedEmployeeNames, } = this.state; return ( <div> <DataGrid id="grid-container" dataSource={employees} keyExpr="ID" onSelectionChanged={this.onSelectionChanged} ref={(ref) => { this.dataGrid = ref; }} selectedRowKeys={selectedRowKeys} showBorders={true} > <Selection mode="multiple" /> <Column dataField="Prefix" caption="Title" width={70} /> <Column dataField="FirstName" /> <Column dataField="LastName" /> <Column dataField="Position" width={180} /> <Column dataField="BirthDate" dataType="date" width={125} /> <Column dataField="HireDate" dataType="date" width={125} /> <Toolbar> <Item location="before"> <SelectBox dataSource={titles} onValueChanged={this.onSelectionFilterChanged} placeholder="Select title" width={150} value={prefix} /> </Item> <Item location="before"> <Button disabled={!selectedRowKeys.length} onClick={this.onClearButtonClicked} text="Clear Selection" /> </Item> </Toolbar> </DataGrid> <div className="selected-data"> <span className="caption">Selected Records:</span>{' '} <span> { selectedEmployeeNames } </span> </div> </div> ); } onSelectionChanged({ selectedRowKeys, selectedRowsData }) { this.selectionChangedBySelectBox = false; this.setState({ prefix: null, selectedEmployeeNames: getEmployeeNames(selectedRowsData), selectedRowKeys, }); } onClearButtonClicked() { this.dataGrid.instance.clearSelection(); } onSelectionFilterChanged({ value }) { this.selectionChangedBySelectBox = true; const prefix = value; if (prefix) { const filteredEmployees = prefix === 'All' ? employees : employees.filter((employee) => employee.Prefix === prefix); const selectedRowKeys = filteredEmployees.map((employee) => employee.ID); this.setState({ prefix, selectedRowKeys, selectedEmployeeNames: getEmployeeNames(filteredEmployees), }); } } } function getEmployeeName(row) { return `${row.FirstName} ${row.LastName}`; } function getEmployeeNames(selectedRowsData) { return selectedRowsData.length ? selectedRowsData.map(getEmployeeName).join(', ') : 'Nobody has been selected'; } 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/22.2.6/css/dx.light.css" /> <link rel="stylesheet" type="text/css" href="styles.css" /> <script src="https://unpkg.com/core-js@2.6.12/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>
#grid { display: flex; align-items: center; margin-bottom: 10px; } .selected-data { margin-top: 20px; padding: 20px; background-color: rgba(191, 191, 191, 0.15); } .selected-data .caption { font-weight: bold; font-size: 115%; margin-right: 4px; }
export const employees = [{ ID: 1, FirstName: 'John', LastName: 'Heart', Prefix: 'Mr.', Position: 'CEO', Picture: '../../../../images/employees/01.png', BirthDate: '1964/03/16', HireDate: '1995/01/15', Notes: 'John has been in the Audio/Video industry since 1990. He has led DevAv as its CEO since 2003.\r\n\r\nWhen not working hard as the CEO, John loves to golf and bowl. He once bowled a perfect game of 300.', Address: '351 S Hill St.', }, { ID: 20, FirstName: 'Olivia', LastName: 'Peyton', Prefix: 'Mrs.', Position: 'Sales Assistant', Picture: '../../../../images/employees/09.png', BirthDate: '1981/06/03', HireDate: '2012/05/14', Notes: 'Olivia loves to sell. She has been selling DevAV products since 2012. \r\n\r\nOlivia was homecoming queen in high school. She is expecting her first child in 6 months. Good Luck Olivia.', Address: '807 W Paseo Del Mar', }, { ID: 4, FirstName: 'Robert', LastName: 'Reagan', Prefix: 'Mr.', Position: 'CMO', Picture: '../../../../images/employees/03.png', BirthDate: '1974/09/07', HireDate: '2002/11/08', Notes: 'Robert was recently voted the CMO of the year by CMO Magazine. He is a proud member of the DevAV Management Team.\r\n\r\nRobert is a championship BBQ chef, so when you get the chance ask him for his secret recipe.', Address: '4 Westmoreland Pl.', }, { ID: 5, FirstName: 'Greta', LastName: 'Sims', Prefix: 'Ms.', Position: 'HR Manager', Picture: '../../../../images/employees/04.png', BirthDate: '1977/11/22', HireDate: '1998/04/23', Notes: 'Greta has been DevAV\'s HR Manager since 2003. She joined DevAV from Sonee Corp.\r\n\r\nGreta is currently training for the NYC marathon. Her best marathon time is 4 hours. Go Greta.', Address: '1700 S Grandview Dr.', }, { ID: 6, FirstName: 'Brett', LastName: 'Wade', Prefix: 'Mr.', Position: 'IT Manager', Picture: '../../../../images/employees/05.png', BirthDate: '1968/12/01', HireDate: '2009/03/06', Notes: 'Brett came to DevAv from Microsoft and has led our IT department since 2012.\r\n\r\nWhen he is not working hard for DevAV, he coaches Little League (he was a high school pitcher).', Address: '1120 Old Mill Rd.', }, { ID: 7, FirstName: 'Sandra', LastName: 'Johnson', Prefix: 'Mrs.', Position: 'Controller', Picture: '../../../../images/employees/06.png', BirthDate: '1974/11/15', HireDate: '2005/05/11', Notes: 'Sandra is a CPA and has been our controller since 2008. She loves to interact with staff so if you\'ve not met her, be certain to say hi.\r\n\r\nSandra has 2 daughters both of whom are accomplished gymnasts.', Address: '4600 N Virginia Rd.', }, { ID: 10, FirstName: 'Kevin', LastName: 'Carter', Prefix: 'Mr.', Position: 'Shipping Manager', Picture: '../../../../images/employees/07.png', BirthDate: '1978/01/09', HireDate: '2009/08/11', Notes: 'Kevin is our hard-working shipping manager and has been helping that department work like clockwork for 18 months.\r\n\r\nWhen not in the office, he is usually on the basketball court playing pick-up games.', Address: '424 N Main St.', }, { ID: 11, FirstName: 'Cynthia', LastName: 'Stanwick', Prefix: 'Ms.', Position: 'HR Assistant', Picture: '../../../../images/employees/08.png', BirthDate: '1985/06/05', HireDate: '2008/03/24', Notes: 'Cindy joined us in 2008 and has been in the HR department for 2 years. \r\n\r\nShe was recently awarded employee of the month. Way to go Cindy!', Address: '2211 Bonita Dr.', }, { ID: 30, FirstName: 'Kent', LastName: 'Samuelson', Prefix: 'Dr.', Position: 'Ombudsman', Picture: '../../../../images/employees/02.png', BirthDate: '1972/09/11', HireDate: '2009/04/22', Notes: 'As our ombudsman, Kent is on the front-lines solving customer problems and helping our partners address issues out in the field. He is a classically trained musician and is a member of the Chamber Orchestra.', Address: '12100 Mora Dr', }, { ID: 21, FirstName: 'Taylor', LastName: 'Riley', Prefix: 'Mr.', Position: 'Network Admin', Picture: '', BirthDate: '1982/08/14', HireDate: '2012/04/14', Notes: 'If you are like the rest of us at DevAV, then you\'ve probably reached out for help from Taylor. He does a great job as a member of our IT department.', Address: '7776 Torreyson Dr', }];
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