Backend API
        
    import React, { useCallback, useState } from 'react';
import DataGrid, { Column, type DataGridTypes, Selection } from 'devextreme-react/data-grid';
import { employees } from './data.ts';
const App = () => {
  const [showEmployeeInfo, setShowEmployeeInfo] = useState(false);
  const [selectedRowPicture, setSelectedRowPicture] = useState('');
  const [selectedRowNotes, setSelectedRowNotes] = useState('');
  const onSelectionChanged = useCallback(({ selectedRowsData }: DataGridTypes.SelectionChangedEvent) => {
    const data = selectedRowsData[0];
    setShowEmployeeInfo(!!data);
    setSelectedRowNotes(data && data.Notes);
    setSelectedRowPicture(data && data.Picture);
  }, []);
  return (
    <React.Fragment>
      <DataGrid
        dataSource={employees}
        showBorders={true}
        hoverStateEnabled={true}
        keyExpr="ID"
        onSelectionChanged={onSelectionChanged}
      >
        <Selection mode="single" />
        <Column dataField="Prefix" caption="Title" width={70} />
        <Column dataField="FirstName" />
        <Column dataField="LastName" />
        <Column dataField="Position" width={180} />
        <Column dataField="BirthDate" dataType="date" />
        <Column dataField="HireDate" dataType="date" />
      </DataGrid>
      {showEmployeeInfo && (
        <div id="employee-info">
          <img src={selectedRowPicture} className="employee-photo" alt="Employee photo" />
          <p className="employee-notes">{selectedRowNotes}</p>
        </div>
      )}
    </React.Fragment>
  );
};
export default App;
    
    import React, { useCallback, useState } from 'react';
import DataGrid, { Column, Selection } from 'devextreme-react/data-grid';
import { employees } from './data.js';
const App = () => {
  const [showEmployeeInfo, setShowEmployeeInfo] = useState(false);
  const [selectedRowPicture, setSelectedRowPicture] = useState('');
  const [selectedRowNotes, setSelectedRowNotes] = useState('');
  const onSelectionChanged = useCallback(({ selectedRowsData }) => {
    const data = selectedRowsData[0];
    setShowEmployeeInfo(!!data);
    setSelectedRowNotes(data && data.Notes);
    setSelectedRowPicture(data && data.Picture);
  }, []);
  return (
    <React.Fragment>
      <DataGrid
        dataSource={employees}
        showBorders={true}
        hoverStateEnabled={true}
        keyExpr="ID"
        onSelectionChanged={onSelectionChanged}
      >
        <Selection mode="single" />
        <Column
          dataField="Prefix"
          caption="Title"
          width={70}
        />
        <Column dataField="FirstName" />
        <Column dataField="LastName" />
        <Column
          dataField="Position"
          width={180}
        />
        <Column
          dataField="BirthDate"
          dataType="date"
        />
        <Column
          dataField="HireDate"
          dataType="date"
        />
      </DataGrid>
      {showEmployeeInfo && (
        <div id="employee-info">
          <img
            src={selectedRowPicture}
            className="employee-photo"
            alt="Employee photo"
          />
          <p className="employee-notes">{selectedRowNotes}</p>
        </div>
      )}
    </React.Fragment>
  );
};
export default App;
    
    import React from 'react';
import ReactDOM from 'react-dom';
import App from './App.tsx';
ReactDOM.render(
  <App />,
  document.getElementById('app'),
);
    
    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.',
}];
    
    window.exports = window.exports || {};
window.config = {
  transpiler: 'ts',
  typescriptOptions: {
    module: 'system',
    emitDecoratorMetadata: true,
    experimentalDecorators: true,
    jsx: 'react',
  },
  meta: {
    'react': {
      'esModule': true,
    },
    'typescript': {
      'exports': 'ts',
    },
    'devextreme/time_zone_utils.js': {
      'esModule': true,
    },
    'devextreme/localization.js': {
      'esModule': true,
    },
    'devextreme/viz/palette.js': {
      'esModule': true,
    },
    'openai': {
      'esModule': true,
    },
  },
  paths: {
    'npm:': 'https://cdn.jsdelivr.net/npm/',
    'bundles:': '../../../../bundles/',
    'externals:': '../../../../bundles/externals/',
  },
  defaultExtension: 'js',
  map: {
    'ts': 'npm:plugin-typescript@8.0.0/lib/plugin.js',
    'typescript': 'npm:typescript@4.2.4/lib/typescript.js',
    'jszip': 'npm:jszip@3.10.1/dist/jszip.min.js',
    'react': 'npm:react@17.0.2/umd/react.development.js',
    'react-dom': 'npm:react-dom@17.0.2/umd/react-dom.development.js',
    'prop-types': 'npm:prop-types/prop-types.js',
    'rrule': 'npm:rrule@2.6.4/dist/es5/rrule.js',
    'luxon': 'npm:luxon@3.4.4/build/global/luxon.min.js',
    'es6-object-assign': 'npm:es6-object-assign',
    'devextreme': 'npm:devextreme@link:../../packages/devextreme/artifacts/npm/devextreme/cjs',
    'devextreme-react': 'npm:devextreme-react@link:../../packages/devextreme-react/npm/cjs',
    'devextreme-quill': 'npm:devextreme-quill@1.7.6/dist/dx-quill.min.js',
    'devexpress-diagram': 'npm:devexpress-diagram@2.2.24/dist/dx-diagram.js',
    'devexpress-gantt': 'npm:devexpress-gantt@4.1.64/dist/dx-gantt.js',
    'inferno': 'npm:inferno@8.2.3/dist/inferno.min.js',
    'inferno-compat': 'npm:inferno-compat/dist/inferno-compat.min.js',
    'inferno-create-element': 'npm:inferno-create-element@8.2.3/dist/inferno-create-element.min.js',
    'inferno-dom': 'npm:inferno-dom/dist/inferno-dom.min.js',
    'inferno-hydrate': 'npm:inferno-hydrate/dist/inferno-hydrate.min.js',
    'inferno-clone-vnode': 'npm:inferno-clone-vnode/dist/inferno-clone-vnode.min.js',
    'inferno-create-class': 'npm:inferno-create-class/dist/inferno-create-class.min.js',
    'inferno-extras': 'npm:inferno-extras/dist/inferno-extras.min.js',
    '@preact/signals-core': 'npm:@preact/signals-core@1.8.0/dist/signals-core.min.js',
    'devextreme-cldr-data': 'npm:devextreme-cldr-data@1.0.3',
    // SystemJS plugins
    'plugin-babel': 'npm:systemjs-plugin-babel@0.0.25/plugin-babel.js',
    'systemjs-babel-build': 'npm:systemjs-plugin-babel@0.0.25/systemjs-babel-browser.js',
    // Prettier
    'prettier/standalone': 'npm:prettier@2.8.8/standalone.js',
    'prettier/parser-html': 'npm:prettier@2.8.8/parser-html.js',
  },
  packages: {
    'devextreme': {
      defaultExtension: 'js',
    },
    'devextreme-react': {
      main: 'index.js',
    },
    'devextreme-react/common': {
      main: 'index.js',
    },
    'devextreme/events/utils': {
      main: 'index',
    },
    'devextreme/common/core/events/utils': {
      main: 'index',
    },
    'devextreme/localization/messages': {
      format: 'json',
      defaultExtension: 'json',
    },
    'devextreme/events': {
      main: 'index',
    },
    'es6-object-assign': {
      main: './index.js',
      defaultExtension: 'js',
    },
  },
  packageConfigPaths: [
    'npm:@devextreme/*/package.json',
  ],
  babelOptions: {
    sourceMaps: false,
    stage0: true,
    react: true,
  },
};
System.config(window.config);
// eslint-disable-next-line
const useTgzInCSB = ['openai'];
    
    import React from 'react';
import ReactDOM from 'react-dom';
import App from './App.js';
ReactDOM.render(<App />, document.getElementById('app'));
    
    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.',
  },
];
    
    <!DOCTYPE html>
<html lang="en">
  <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=5.0" />
    <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/25.1.6/css/dx.light.css" />
    <link rel="stylesheet" type="text/css" href="styles.css" />
    <script src="https://cdn.jsdelivr.net/npm/core-js@2.6.12/client/shim.min.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/systemjs@0.21.3/dist/system.js"></script>
    <script type="text/javascript" src="config.js"></script>
    <script type="text/javascript">
      System.import("./index.tsx");
    </script>
  </head>
  <body class="dx-viewport">
    <div class="demo-container">
      <div id="app"></div>
    </div>
  </body>
</html>
    
    #employee-info .employee-photo {
  height: 100px;
  float: left;
  padding: 20px;
}
#employee-info .employee-notes {
  padding-top: 20px;
  text-align: justify;
}
.dark #employee-info .employee-notes {
  color: rgb(181, 181, 181);
}