Backend API
import React, { useCallback, useState } from 'react';
import type { ApplyValueMode } from 'devextreme-react/common';
import { Lookup, DropDownOptions } from 'devextreme-react/lookup';
import type { LookupTypes } from 'devextreme-react/lookup';
import { SelectBox } from 'devextreme-react';
import type { SelectBoxTypes } from 'devextreme-react/select-box';
import { employees, applyValueModeLabel, lookupLabel } from './data.ts';
import type { Employee } from './types.ts';
const applyValueModes: ApplyValueMode[] = ['instantly', 'useButtons'];
const getDisplayExpr = (employee?: Employee): string => (employee ? `${employee.FirstName} ${employee.LastName}` : '');
function App() {
const [selectedValue, setSelectedValue] = useState<Employee | null>(null);
const [applyValueMode, setApplyValueMode] = useState<ApplyValueMode>('instantly');
const onValueChanged = useCallback(({ value }: LookupTypes.ValueChangedEvent): void => {
setSelectedValue(value);
}, []);
const changeApplyValueMode = useCallback(({ value }: SelectBoxTypes.ValueChangedEvent): void => {
setApplyValueMode(value);
}, []);
return (
<div>
<div className="dx-fieldset">
<div className="dx-field">
<Lookup
value={selectedValue}
items={employees}
displayExpr={getDisplayExpr}
placeholder="Select employee"
inputAttr={lookupLabel}
onValueChanged={onValueChanged}
applyValueMode={applyValueMode}
>
<DropDownOptions showTitle={false} />
</Lookup>
</div>
</div>
{selectedValue && (
<div className="selected">
<div className="frame">
<img src={selectedValue.Picture} />
</div>
<div id="selected-employee-notes">{selectedValue.Notes}</div>
</div>
)}
<div className="options">
<div className="caption">Options</div>
<div className="option">
<div className="label">Apply Value Mode</div>
<SelectBox
items={applyValueModes}
inputAttr={applyValueModeLabel}
value={applyValueMode}
onValueChanged={changeApplyValueMode}
/>
</div>
</div>
</div>
);
}
export default App;
import React, { useCallback, useState } from 'react';
import { Lookup, DropDownOptions } from 'devextreme-react/lookup';
import { SelectBox } from 'devextreme-react';
import { employees, applyValueModeLabel, lookupLabel } from './data.js';
const applyValueModes = ['instantly', 'useButtons'];
const getDisplayExpr = (employee) => (employee ? `${employee.FirstName} ${employee.LastName}` : '');
function App() {
const [selectedValue, setSelectedValue] = useState(null);
const [applyValueMode, setApplyValueMode] = useState('instantly');
const onValueChanged = useCallback(({ value }) => {
setSelectedValue(value);
}, []);
const changeApplyValueMode = useCallback(({ value }) => {
setApplyValueMode(value);
}, []);
return (
<div>
<div className="dx-fieldset">
<div className="dx-field">
<Lookup
value={selectedValue}
items={employees}
displayExpr={getDisplayExpr}
placeholder="Select employee"
inputAttr={lookupLabel}
onValueChanged={onValueChanged}
applyValueMode={applyValueMode}
>
<DropDownOptions showTitle={false} />
</Lookup>
</div>
</div>
{selectedValue && (
<div className="selected">
<div className="frame">
<img src={selectedValue.Picture} />
</div>
<div id="selected-employee-notes">{selectedValue.Notes}</div>
</div>
)}
<div className="options">
<div className="caption">Options</div>
<div className="option">
<div className="label">Apply Value Mode</div>
<SelectBox
items={applyValueModes}
inputAttr={applyValueModeLabel}
value={applyValueMode}
onValueChanged={changeApplyValueMode}
/>
</div>
</div>
</div>
);
}
export default App;
import React from 'react';
import ReactDOM from 'react-dom';
import App from './App.tsx';
ReactDOM.render(
<App />,
document.getElementById('app'),
);
import type { Employee } from './types.ts';
export const employees: Employee[] = [{
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: 2,
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: 3,
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: 4,
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: 5,
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: 6,
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: 7,
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: 8,
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: 9,
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',
}];
export const applyValueModeLabel = { 'aria-label': 'Apply Value Mode' };
export const lookupLabel = { 'aria-label': 'Lookup' };
export type Employee = {
ID: number;
FirstName: string;
LastName: string;
Prefix: string;
Position: string;
Picture: string;
BirthDate: string;
HireDate: string;
Notes: string;
Address: string;
};
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: 2,
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: 3,
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: 4,
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: 5,
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: 6,
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: 7,
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: 8,
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: 9,
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',
},
];
export const applyValueModeLabel = { 'aria-label': 'Apply Value Mode' };
export const lookupLabel = { 'aria-label': 'Lookup' };
<!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/26.1.5/css/dx.light.css" />
<link rel="stylesheet" type="text/css" href="./bundle.css" />
</head>
<body class="dx-viewport">
<div class="demo-container">
<div id="app"></div>
</div>
<script src="bundles/vendor/react.vendor.js"></script>
<script src="./bundle.js"></script>
</body>
</html>
.selected {
margin-left: 20px;
}
.frame {
height: 64px;
width: 64px;
float: left;
border: 1px solid #eee;
border-radius: 50%;
overflow: hidden;
margin-right: 20px;
}
.frame > img {
max-width: 64px;
}
#selected-employee-notes {
overflow: hidden;
}
.dx-field > .dx-lookup {
flex: 1;
}
.dx-fieldset,
.selected {
margin-right: 320px;
}
.options {
padding: 20px;
background-color: rgba(191, 191, 191, 0.15);
position: absolute;
right: 0;
top: 0;
bottom: 0;
width: 260px;
}
.caption {
font-weight: 500;
font-size: 18px;
}
.option {
margin-top: 10px;
}