import React, { useCallback, useRef, useState } from 'react';
import TreeView, { TreeViewTypes } from 'devextreme-react/tree-view';
import List from 'devextreme-react/list';
import SelectBox, { SelectBoxTypes } from 'devextreme-react/select-box';
import CheckBox, { CheckBoxTypes } from 'devextreme-react/check-box';
import { employees, showCheckboxesModeLabel, selectionModeLabel } from './data.ts';
const showCheckBoxesModes: TreeViewTypes.TreeViewCheckBoxMode[] = ['normal', 'selectAll', 'none'];
const selectionModes: TreeViewTypes.SingleOrMultiple[] = ['multiple', 'single'];
const renderTreeViewItem = (item: { fullName: any; position: any; }) => `${item.fullName} (${item.position})`;
const renderListItem = (item: { prefix: any; fullName: any; position: any; }) => `${item.prefix} ${item.fullName} (${item.position})`;
const App = () => {
const treeViewRef = useRef(null);
const [selectedEmployees, setSelectedEmployees] = useState([]);
const [selectNodesRecursive, setSelectNodesRecursive] = useState(true);
const [selectByClick, setSelectByClick] = useState(false);
const [showCheckBoxesMode, setShowCheckBoxesMode] = useState(showCheckBoxesModes[0]);
const [selectionMode, setSelectionMode] = useState(selectionModes[0]);
const [isSelectionModeDisabled, setIsSelectionModeDisabled] = useState(false);
const [isRecursiveDisabled, setIsRecursiveDisabled] = useState(false);
const syncSelection = useCallback((treeView) => {
const syncSelectedEmployees = treeView.getSelectedNodes()
.map((node) => node.itemData);
setSelectedEmployees(syncSelectedEmployees);
}, [setSelectedEmployees]);
const treeViewSelectionChanged = useCallback((e: TreeViewTypes.SelectionChangedEvent) => {
syncSelection(e.component);
}, [syncSelection]);
const treeViewContentReady = useCallback((e: TreeViewTypes.ContentReadyEvent) => {
syncSelection(e.component);
}, [syncSelection]);
const showCheckBoxesModeValueChanged = useCallback((e: SelectBoxTypes.ValueChangedEvent) => {
const value = e.value;
setShowCheckBoxesMode(value);
if (value === 'selectAll') {
setSelectionMode('multiple');
setIsRecursiveDisabled(false);
}
setIsSelectionModeDisabled(value === 'selectAll');
}, [setShowCheckBoxesMode, setSelectionMode, setIsRecursiveDisabled, setIsSelectionModeDisabled]);
const selectionModeValueChanged = useCallback((e: SelectBoxTypes.ValueChangedEvent) => {
const value = e.value;
setSelectionMode(value);
if (value === 'single') {
setSelectNodesRecursive(false);
treeViewRef.current.instance().unselectAll();
}
setIsRecursiveDisabled(value === 'single');
}, [setSelectionMode, setSelectNodesRecursive, setIsRecursiveDisabled]);
const selectNodesRecursiveValueChanged = useCallback((e: CheckBoxTypes.ValueChangedEvent) => {
setSelectNodesRecursive(e.value);
}, [setSelectNodesRecursive]);
const selectByClickValueChanged = useCallback((e: CheckBoxTypes.ValueChangedEvent) => {
setSelectByClick(e.value);
}, [setSelectByClick]);
return (
<div>
<div className="form">
<h4>Employees</h4>
<TreeView
id="treeview"
ref={treeViewRef}
width={340}
height={320}
items={employees}
selectNodesRecursive={selectNodesRecursive}
selectByClick={selectByClick}
showCheckBoxesMode={showCheckBoxesMode}
selectionMode={selectionMode}
onSelectionChanged={treeViewSelectionChanged}
onContentReady={treeViewContentReady}
itemRender={renderTreeViewItem}
/>
{' '}
<div className="selected-container">Selected employees
<List
id="selected-employees"
width={400}
height={200}
showScrollbar="always"
items={selectedEmployees}
itemRender={renderListItem}
/>
</div>
</div>
<div className="options">
<div className="caption">Options</div>
<div className="options-container">
<div className="option">
<span>Show Check Boxes Mode:</span>
<div className="editor-container">
<SelectBox
items={showCheckBoxesModes}
value={showCheckBoxesMode}
inputAttr={showCheckboxesModeLabel}
onValueChanged={showCheckBoxesModeValueChanged} />
</div>
</div>
<div className="option">
<span>Selection Mode:</span>
<div className="editor-container">
<SelectBox
items={selectionModes}
value={selectionMode}
inputAttr={selectionModeLabel}
disabled={isSelectionModeDisabled}
onValueChanged={selectionModeValueChanged} />
</div>
</div>
<div className="option">
<div className="caption-placeholder"> </div>
<div className="editor-container">
<CheckBox
text="Select Nodes Recursive"
value={selectNodesRecursive}
disabled={isRecursiveDisabled}
onValueChanged={selectNodesRecursiveValueChanged} />
</div>
</div>
<div className="option">
<div className="caption-placeholder"> </div>
<div className="editor-container">
<CheckBox
text="Select By Click"
value={selectByClick}
onValueChanged={selectByClickValueChanged} />
</div>
</div>
</div>
</div>
</div>
);
};
export default App;
import React, { useCallback, useRef, useState } from 'react';
import TreeView from 'devextreme-react/tree-view';
import List from 'devextreme-react/list';
import SelectBox from 'devextreme-react/select-box';
import CheckBox from 'devextreme-react/check-box';
import { employees, showCheckboxesModeLabel, selectionModeLabel } from './data.js';
const showCheckBoxesModes = ['normal', 'selectAll', 'none'];
const selectionModes = ['multiple', 'single'];
const renderTreeViewItem = (item) => `${item.fullName} (${item.position})`;
const renderListItem = (item) => `${item.prefix} ${item.fullName} (${item.position})`;
const App = () => {
const treeViewRef = useRef(null);
const [selectedEmployees, setSelectedEmployees] = useState([]);
const [selectNodesRecursive, setSelectNodesRecursive] = useState(true);
const [selectByClick, setSelectByClick] = useState(false);
const [showCheckBoxesMode, setShowCheckBoxesMode] = useState(showCheckBoxesModes[0]);
const [selectionMode, setSelectionMode] = useState(selectionModes[0]);
const [isSelectionModeDisabled, setIsSelectionModeDisabled] = useState(false);
const [isRecursiveDisabled, setIsRecursiveDisabled] = useState(false);
const syncSelection = useCallback(
(treeView) => {
const syncSelectedEmployees = treeView.getSelectedNodes().map((node) => node.itemData);
setSelectedEmployees(syncSelectedEmployees);
},
[setSelectedEmployees],
);
const treeViewSelectionChanged = useCallback(
(e) => {
syncSelection(e.component);
},
[syncSelection],
);
const treeViewContentReady = useCallback(
(e) => {
syncSelection(e.component);
},
[syncSelection],
);
const showCheckBoxesModeValueChanged = useCallback(
(e) => {
const value = e.value;
setShowCheckBoxesMode(value);
if (value === 'selectAll') {
setSelectionMode('multiple');
setIsRecursiveDisabled(false);
}
setIsSelectionModeDisabled(value === 'selectAll');
},
[setShowCheckBoxesMode, setSelectionMode, setIsRecursiveDisabled, setIsSelectionModeDisabled],
);
const selectionModeValueChanged = useCallback(
(e) => {
const value = e.value;
setSelectionMode(value);
if (value === 'single') {
setSelectNodesRecursive(false);
treeViewRef.current.instance().unselectAll();
}
setIsRecursiveDisabled(value === 'single');
},
[setSelectionMode, setSelectNodesRecursive, setIsRecursiveDisabled],
);
const selectNodesRecursiveValueChanged = useCallback(
(e) => {
setSelectNodesRecursive(e.value);
},
[setSelectNodesRecursive],
);
const selectByClickValueChanged = useCallback(
(e) => {
setSelectByClick(e.value);
},
[setSelectByClick],
);
return (
<div>
<div className="form">
<h4>Employees</h4>
<TreeView
id="treeview"
ref={treeViewRef}
width={340}
height={320}
items={employees}
selectNodesRecursive={selectNodesRecursive}
selectByClick={selectByClick}
showCheckBoxesMode={showCheckBoxesMode}
selectionMode={selectionMode}
onSelectionChanged={treeViewSelectionChanged}
onContentReady={treeViewContentReady}
itemRender={renderTreeViewItem}
/>{' '}
<div className="selected-container">
Selected employees
<List
id="selected-employees"
width={400}
height={200}
showScrollbar="always"
items={selectedEmployees}
itemRender={renderListItem}
/>
</div>
</div>
<div className="options">
<div className="caption">Options</div>
<div className="options-container">
<div className="option">
<span>Show Check Boxes Mode:</span>
<div className="editor-container">
<SelectBox
items={showCheckBoxesModes}
value={showCheckBoxesMode}
inputAttr={showCheckboxesModeLabel}
onValueChanged={showCheckBoxesModeValueChanged}
/>
</div>
</div>
<div className="option">
<span>Selection Mode:</span>
<div className="editor-container">
<SelectBox
items={selectionModes}
value={selectionMode}
inputAttr={selectionModeLabel}
disabled={isSelectionModeDisabled}
onValueChanged={selectionModeValueChanged}
/>
</div>
</div>
<div className="option">
<div className="caption-placeholder"> </div>
<div className="editor-container">
<CheckBox
text="Select Nodes Recursive"
value={selectNodesRecursive}
disabled={isRecursiveDisabled}
onValueChanged={selectNodesRecursiveValueChanged}
/>
</div>
</div>
<div className="option">
<div className="caption-placeholder"> </div>
<div className="editor-container">
<CheckBox
text="Select By Click"
value={selectByClick}
onValueChanged={selectByClickValueChanged}
/>
</div>
</div>
</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'),
);
export const employees = [{
id: 1,
fullName: 'John Heart',
prefix: 'Dr.',
position: 'CEO',
expanded: true,
items: [{
id: 2,
fullName: 'Samantha Bright',
prefix: 'Dr.',
position: 'COO',
expanded: true,
items: [{
id: 3,
fullName: 'Kevin Carter',
prefix: 'Mr.',
position: 'Shipping Manager',
}, {
id: 14,
fullName: 'Victor Norris',
prefix: 'Mr.',
selected: true,
position: 'Shipping Assistant',
}],
}, {
id: 4,
fullName: 'Brett Wade',
prefix: 'Mr.',
position: 'IT Manager',
expanded: true,
items: [{
id: 5,
fullName: 'Amelia Harper',
prefix: 'Mrs.',
position: 'Network Admin',
}, {
id: 6,
fullName: 'Wally Hobbs',
prefix: 'Mr.',
position: 'Programmer',
}, {
id: 7,
fullName: 'Brad Jameson',
prefix: 'Mr.',
position: 'Programmer',
}, {
id: 8,
fullName: 'Violet Bailey',
prefix: 'Ms.',
position: 'Jr Graphic Designer',
}],
}, {
id: 9,
fullName: 'Barb Banks',
prefix: 'Mrs.',
position: 'Support Manager',
expanded: true,
items: [{
id: 10,
fullName: 'Kelly Rodriguez',
prefix: 'Ms.',
position: 'Support Assistant',
}, {
id: 11,
fullName: 'James Anderson',
prefix: 'Mr.',
position: 'Support Assistant',
}],
}],
}];
export const selectionModeLabel = { 'aria-label': 'Selection Mode' };
export const showCheckboxesModeLabel = { 'aria-label': 'Show Checkboxes Mode' };
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,
},
},
paths: {
'npm:': 'https://unpkg.com/',
},
defaultExtension: 'js',
map: {
'ts': 'npm:plugin-typescript@4.2.4/lib/plugin.js',
'typescript': 'npm:typescript@4.2.4/lib/typescript.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@15.8.1/prop-types.js',
'rrule': 'npm:rrule@2.6.4/dist/es5/rrule.js',
'luxon': 'npm:luxon@1.28.1/build/global/luxon.min.js',
'es6-object-assign': 'npm:es6-object-assign@1.1.0',
'devextreme': 'npm:devextreme@24.1.7/cjs',
'devextreme-react': 'npm:devextreme-react@24.1.7/cjs',
'jszip': 'npm:jszip@3.10.1/dist/jszip.min.js',
'devextreme-quill': 'npm:devextreme-quill@1.7.1/dist/dx-quill.min.js',
'devexpress-diagram': 'npm:devexpress-diagram@2.2.12/dist/dx-diagram.js',
'devexpress-gantt': 'npm:devexpress-gantt@4.1.56/dist/dx-gantt.js',
'@devextreme/runtime': 'npm:@devextreme/runtime@3.0.13',
'inferno': 'npm:inferno@7.4.11/dist/inferno.min.js',
'inferno-compat': 'npm:inferno-compat/dist/inferno-compat.min.js',
'inferno-create-element': 'npm:inferno-create-element@7.4.11/dist/inferno-create-element.min.js',
'inferno-dom': 'npm:inferno-dom/dist/inferno-dom.min.js',
'inferno-hydrate': 'npm:inferno-hydrate@7.4.11/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',
'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/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',
'npm:@devextreme/runtime@3.0.13/inferno/package.json',
],
babelOptions: {
sourceMaps: false,
stage0: true,
react: true,
},
};
System.config(window.config);
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,
fullName: 'John Heart',
prefix: 'Dr.',
position: 'CEO',
expanded: true,
items: [
{
id: 2,
fullName: 'Samantha Bright',
prefix: 'Dr.',
position: 'COO',
expanded: true,
items: [
{
id: 3,
fullName: 'Kevin Carter',
prefix: 'Mr.',
position: 'Shipping Manager',
},
{
id: 14,
fullName: 'Victor Norris',
prefix: 'Mr.',
selected: true,
position: 'Shipping Assistant',
},
],
},
{
id: 4,
fullName: 'Brett Wade',
prefix: 'Mr.',
position: 'IT Manager',
expanded: true,
items: [
{
id: 5,
fullName: 'Amelia Harper',
prefix: 'Mrs.',
position: 'Network Admin',
},
{
id: 6,
fullName: 'Wally Hobbs',
prefix: 'Mr.',
position: 'Programmer',
},
{
id: 7,
fullName: 'Brad Jameson',
prefix: 'Mr.',
position: 'Programmer',
},
{
id: 8,
fullName: 'Violet Bailey',
prefix: 'Ms.',
position: 'Jr Graphic Designer',
},
],
},
{
id: 9,
fullName: 'Barb Banks',
prefix: 'Mrs.',
position: 'Support Manager',
expanded: true,
items: [
{
id: 10,
fullName: 'Kelly Rodriguez',
prefix: 'Ms.',
position: 'Support Assistant',
},
{
id: 11,
fullName: 'James Anderson',
prefix: 'Mr.',
position: 'Support Assistant',
},
],
},
],
},
];
export const selectionModeLabel = { 'aria-label': 'Selection Mode' };
export const showCheckboxesModeLabel = { 'aria-label': 'Show Checkboxes Mode' };
<!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/24.1.7/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.tsx");
</script>
</head>
<body class="dx-viewport">
<div class="demo-container">
<div id="app"></div>
</div>
</body>
</html>
.form > h4 {
margin-bottom: 20px;
}
.form > div,
#treeview {
display: inline-block;
vertical-align: top;
}
#selected-employees {
margin-top: 20px;
}
.selected-container .dx-list-item-content {
padding-left: 0;
}
.selected-container {
padding: 20px;
margin-left: 20px;
background-color: rgba(191, 191, 191, 0.15);
font-size: 115%;
font-weight: bold;
}
.options {
padding: 20px;
background-color: rgba(191, 191, 191, 0.15);
margin-top: 20px;
box-sizing: border-box;
}
.caption {
font-size: 18px;
font-weight: 500;
}
.option {
width: 24%;
margin-top: 10px;
margin-right: 9px;
box-sizing: border-box;
display: flex;
flex-direction: column;
justify-content: center;
}
.options-container {
display: flex;
justify-content: space-between;
align-items: stretch;
}
.editor-container {
height: 100%;
display: flex;
align-items: center;
}
.editor-container > * {
width: 100%;
}
.option:last-of-type {
margin-right: 0;
}