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Backend API
import React, { useCallback, useState } from 'react';
import List, { IItemDraggingProps, ItemDragging } from 'devextreme-react/list';
import { plannedTasks, doingTasks } from './data.ts';
const App = () => {
const [plannedTasksState, setPlannedTasksState] = useState(plannedTasks);
const [doingTasksState, setDoingTasksState] = useState(doingTasks);
const onDragStart = useCallback<IItemDraggingProps['onDragStart']>((e) => {
e.itemData = e.fromData === 'plannedTasks' ? plannedTasksState[e.fromIndex] : doingTasksState[e.fromIndex];
}, [plannedTasksState, doingTasksState]);
const onAdd = useCallback<IItemDraggingProps['onAdd']>((e) => {
const tasks = e.toData === 'plannedTasks' ? plannedTasksState : doingTasksState;
const updatedTasks = [...tasks];
updatedTasks.splice(e.toIndex, 0, e.itemData);
if (e.toData === 'plannedTasks') {
setPlannedTasksState(updatedTasks);
} else {
setDoingTasksState(updatedTasks);
}
}, [setPlannedTasksState, setDoingTasksState, plannedTasksState, doingTasksState]);
const onRemove = useCallback<IItemDraggingProps['onRemove']>((e) => {
const tasks = e.fromData === 'plannedTasks' ? plannedTasksState : doingTasksState;
const updatedTasks = [...tasks];
updatedTasks.splice(e.fromIndex, 1);
if (e.fromData === 'plannedTasks') {
setPlannedTasksState(updatedTasks);
} else {
setDoingTasksState(updatedTasks);
}
}, [setPlannedTasksState, setDoingTasksState, plannedTasksState, doingTasksState]);
const onReorder = useCallback((e) => {
if (e.fromData === e.toData) {
const updateTasks = (tasks) => {
const updatedTasks = [...tasks];
const [movedTask] = updatedTasks.splice(e.fromIndex, 1);
updatedTasks.splice(e.toIndex, 0, movedTask);
return updatedTasks;
};
if (e.fromData === 'plannedTasks') {
setPlannedTasksState((prevTasks) => updateTasks(prevTasks));
} else {
setDoingTasksState((prevTasks) => updateTasks(prevTasks));
}
}
else {
onRemove(e);
onAdd(e);
}
}, [onAdd, onRemove]);
return (
<div className="widget-container">
<List
dataSource={plannedTasksState}
keyExpr="id">
<ItemDragging
allowReordering={true}
group="tasks"
data="plannedTasks"
onDragStart={onDragStart}
onAdd={onAdd}
onRemove={onRemove}
onReorder={onReorder}>
</ItemDragging>
</List>
<List
dataSource={doingTasksState}
keyExpr="id">
<ItemDragging
allowReordering={true}
group="tasks"
data="doingTasks"
onDragStart={onDragStart}
onAdd={onAdd}
onRemove={onRemove}
onReorder={onReorder}>
</ItemDragging>
</List>
</div>
);
};
export default App;
import React, { useCallback, useState } from 'react';
import List, { ItemDragging } from 'devextreme-react/list';
import { plannedTasks, doingTasks } from './data.js';
const App = () => {
const [plannedTasksState, setPlannedTasksState] = useState(plannedTasks);
const [doingTasksState, setDoingTasksState] = useState(doingTasks);
const onDragStart = useCallback(
(e) => {
e.itemData = e.fromData === 'plannedTasks'
? plannedTasksState[e.fromIndex]
: doingTasksState[e.fromIndex];
},
[plannedTasksState, doingTasksState],
);
const onAdd = useCallback(
(e) => {
const tasks = e.toData === 'plannedTasks' ? plannedTasksState : doingTasksState;
const updatedTasks = [...tasks];
updatedTasks.splice(e.toIndex, 0, e.itemData);
if (e.toData === 'plannedTasks') {
setPlannedTasksState(updatedTasks);
} else {
setDoingTasksState(updatedTasks);
}
},
[setPlannedTasksState, setDoingTasksState, plannedTasksState, doingTasksState],
);
const onRemove = useCallback(
(e) => {
const tasks = e.fromData === 'plannedTasks' ? plannedTasksState : doingTasksState;
const updatedTasks = [...tasks];
updatedTasks.splice(e.fromIndex, 1);
if (e.fromData === 'plannedTasks') {
setPlannedTasksState(updatedTasks);
} else {
setDoingTasksState(updatedTasks);
}
},
[setPlannedTasksState, setDoingTasksState, plannedTasksState, doingTasksState],
);
const onReorder = useCallback(
(e) => {
if (e.fromData === e.toData) {
const updateTasks = (tasks) => {
const updatedTasks = [...tasks];
const [movedTask] = updatedTasks.splice(e.fromIndex, 1);
updatedTasks.splice(e.toIndex, 0, movedTask);
return updatedTasks;
};
if (e.fromData === 'plannedTasks') {
setPlannedTasksState((prevTasks) => updateTasks(prevTasks));
} else {
setDoingTasksState((prevTasks) => updateTasks(prevTasks));
}
} else {
onRemove(e);
onAdd(e);
}
},
[onAdd, onRemove],
);
return (
<div className="widget-container">
<List
dataSource={plannedTasksState}
keyExpr="id"
>
<ItemDragging
allowReordering={true}
group="tasks"
data="plannedTasks"
onDragStart={onDragStart}
onAdd={onAdd}
onRemove={onRemove}
onReorder={onReorder}
></ItemDragging>
</List>
<List
dataSource={doingTasksState}
keyExpr="id"
>
<ItemDragging
allowReordering={true}
group="tasks"
data="doingTasks"
onDragStart={onDragStart}
onAdd={onAdd}
onRemove={onRemove}
onReorder={onReorder}
></ItemDragging>
</List>
</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 doingTasks = [{ id: 1, text: 'Prepare 2019 Financial' },
{ id: 2, text: 'Prepare 2019 Marketing Plan' },
{ id: 3, text: 'Update Personnel Files' },
{ id: 4, text: 'Review Health Insurance Options Under the Affordable Care Act' }];
export const plannedTasks = [{ id: 5, text: 'New Brochures' },
{ id: 6, text: '2019 Brochure Designs' },
{ id: 7, text: 'Brochure Design Review' },
{ id: 8, text: 'Website Re-Design Plan' },
{ id: 9, text: 'Rollout of New Website and Marketing Brochures' },
{ id: 10, text: 'Create 2018 Sales Report' },
{ id: 11, text: 'Direct vs Online Sales Comparison Report' },
{ id: 12, text: 'Review 2018 Sales Report and Approve 2019 Plans' },
{ id: 13, text: 'Submit Signed NDA' },
{ id: 14, text: 'Update Revenue Projections' },
{ id: 15, text: 'Review Revenue Projections' },
{ id: 16, text: 'Comment on Revenue Projections' },
{ id: 17, text: 'Scan Health Insurance Forms' },
{ id: 18, text: 'Sign Health Insurance Forms' },
{ id: 19, text: 'Follow up with West Coast Stores' },
{ id: 20, text: 'Follow up with East Coast Stores' },
{ id: 21, text: 'Submit Refund Report for 2019 Recall' },
{ id: 22, text: 'Give Final Approval for Refunds' },
{ id: 23, text: 'Prepare Product Recall Report' },
{ id: 24, text: 'Review Product Recall Report by Engineering Team' },
{ id: 25, text: 'Review Training Course for any Omissions' },
{ id: 26, text: 'Review Overtime Report' },
{ id: 27, text: 'Submit Overtime Request Forms' },
{ id: 28, text: 'Overtime Approval Guidelines' },
{ id: 29, text: 'Create Report on Customer Feedback' },
{ id: 30, text: 'Review Customer Feedback Report' }];
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@24.1.6/cjs',
'devextreme-react': 'npm:devextreme-react@24.1.6/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@2.2.11/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 doingTasks = [
{ id: 1, text: 'Prepare 2019 Financial' },
{ id: 2, text: 'Prepare 2019 Marketing Plan' },
{ id: 3, text: 'Update Personnel Files' },
{ id: 4, text: 'Review Health Insurance Options Under the Affordable Care Act' },
];
export const plannedTasks = [
{ id: 5, text: 'New Brochures' },
{ id: 6, text: '2019 Brochure Designs' },
{ id: 7, text: 'Brochure Design Review' },
{ id: 8, text: 'Website Re-Design Plan' },
{ id: 9, text: 'Rollout of New Website and Marketing Brochures' },
{ id: 10, text: 'Create 2018 Sales Report' },
{ id: 11, text: 'Direct vs Online Sales Comparison Report' },
{ id: 12, text: 'Review 2018 Sales Report and Approve 2019 Plans' },
{ id: 13, text: 'Submit Signed NDA' },
{ id: 14, text: 'Update Revenue Projections' },
{ id: 15, text: 'Review Revenue Projections' },
{ id: 16, text: 'Comment on Revenue Projections' },
{ id: 17, text: 'Scan Health Insurance Forms' },
{ id: 18, text: 'Sign Health Insurance Forms' },
{ id: 19, text: 'Follow up with West Coast Stores' },
{ id: 20, text: 'Follow up with East Coast Stores' },
{ id: 21, text: 'Submit Refund Report for 2019 Recall' },
{ id: 22, text: 'Give Final Approval for Refunds' },
{ id: 23, text: 'Prepare Product Recall Report' },
{ id: 24, text: 'Review Product Recall Report by Engineering Team' },
{ id: 25, text: 'Review Training Course for any Omissions' },
{ id: 26, text: 'Review Overtime Report' },
{ id: 27, text: 'Submit Overtime Request Forms' },
{ id: 28, text: 'Overtime Approval Guidelines' },
{ id: 29, text: 'Create Report on Customer Feedback' },
{ id: 30, text: 'Review Customer Feedback Report' },
];
<!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/24.1.6/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.tsx");
</script>
</head>
<body class="dx-viewport">
<div class="demo-container">
<div id="app"></div>
</div>
</body>
</html>
.widget-container {
display: flex;
}
.widget-container > * {
height: 400px;
width: 50%;
padding: 10px;
}
.dx-scrollview-content {
min-height: 380px;
}
The following steps describe how to configure this functionality:
-
Enable item drag and drop
Set the itemDragging.allowReordering to true. -
Add the lists to the same group
Set the group property of both components to the same value to allow a user to drag and drop items between them. -
Reorder list items in code
Use the onDragStart event handler to store the dragged item's data. When a user drops the item, the onRemove and onAdd functions allow you to remove the item from its initial position and add it to the new location.