Backend API
import React, { useCallback, useState } from 'react';
import List, { ItemDragging } from 'devextreme-react/list';
import type { IItemDraggingProps } from 'devextreme-react/list';
import type { AddEvent, DragStartEvent, RemoveEvent, ReorderEvent } from 'devextreme/ui/sortable';
import { plannedTasks, doingTasks } from './data.ts';
import type { Task } from './types.ts';
const App = () => {
const [plannedTasksState, setPlannedTasksState] = useState<Task[]>(plannedTasks);
const [doingTasksState, setDoingTasksState] = useState<Task[]>(doingTasks);
const onDragStart = useCallback<NonNullable<IItemDraggingProps['onDragStart']>>((e: DragStartEvent): void => {
e.itemData = e.fromData === 'plannedTasks' ? plannedTasksState[e.fromIndex] : doingTasksState[e.fromIndex];
}, [plannedTasksState, doingTasksState]);
const onAdd = useCallback<NonNullable<IItemDraggingProps['onAdd']>>((e: AddEvent): void => {
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);
}
}, [plannedTasksState, doingTasksState]);
const onRemove = useCallback<NonNullable<IItemDraggingProps['onRemove']>>((e: RemoveEvent): void => {
const tasks: Task[] = e.fromData === 'plannedTasks' ? plannedTasksState : doingTasksState;
const updatedTasks: Task[] = [...tasks];
updatedTasks.splice(e.fromIndex, 1);
if (e.fromData === 'plannedTasks') {
setPlannedTasksState(updatedTasks);
} else {
setDoingTasksState(updatedTasks);
}
}, [plannedTasksState, doingTasksState]);
const onReorder = useCallback<NonNullable<IItemDraggingProps['onReorder']>>((e: ReorderEvent): void => {
if (e.fromData === e.toData) {
const updateTasks = (tasks: Task[]): Task[] => {
const updatedTasks: Task[] = [...tasks];
const [movedTask] = updatedTasks.splice(e.fromIndex, 1);
updatedTasks.splice(e.toIndex, 0, movedTask);
return updatedTasks;
};
if (e.fromData === 'plannedTasks') {
setPlannedTasksState((prevTasks: Task[]): Task[] => updateTasks(prevTasks));
} else {
setDoingTasksState((prevTasks: Task[]): Task[] => updateTasks(prevTasks));
}
} else {
onRemove(e as RemoveEvent);
onAdd(e as AddEvent);
}
}, [onAdd, onRemove]);
return (
<div className="widget-container">
<List
dataSource={plannedTasksState}
keyExpr="id"
repaintChangesOnly={true}
>
<ItemDragging
allowReordering={true}
group="tasks"
data="plannedTasks"
onDragStart={onDragStart}
onAdd={onAdd}
onRemove={onRemove}
onReorder={onReorder}>
</ItemDragging>
</List>
<List
dataSource={doingTasksState}
keyExpr="id"
repaintChangesOnly={true}
>
<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);
}
},
[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);
}
},
[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"
repaintChangesOnly={true}
>
<ItemDragging
allowReordering={true}
group="tasks"
data="plannedTasks"
onDragStart={onDragStart}
onAdd={onAdd}
onRemove={onRemove}
onReorder={onReorder}
></ItemDragging>
</List>
<List
dataSource={doingTasksState}
keyExpr="id"
repaintChangesOnly={true}
>
<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'),
);
import type { Task } from './types.ts';
export const doingTasks: Task[] = [{ id: 1, text: 'Prepare 2026 Financial' },
{ id: 2, text: 'Prepare 2026 Marketing Plan' },
{ id: 3, text: 'Update Personnel Files' },
{ id: 4, text: 'Review Health Insurance Options Under the Affordable Care Act' }];
export const plannedTasks: Task[] = [{ id: 5, text: 'New Brochures' },
{ id: 6, text: '2026 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 2022 Sales Report' },
{ id: 11, text: 'Direct vs Online Sales Comparison Report' },
{ id: 12, text: 'Review 2022 Sales Report and Approve 2026 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 2026 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' }];
export type Task = {
id: number;
text: string;
};
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 2026 Financial' },
{ id: 2, text: 'Prepare 2026 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: '2026 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 2022 Sales Report' },
{ id: 11, text: 'Direct vs Online Sales Comparison Report' },
{ id: 12, text: 'Review 2022 Sales Report and Approve 2026 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 2026 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/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>
.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.