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Data Grid
- Overview
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Data Binding
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Paging and Scrolling
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Editing
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Grouping
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Filtering and Sorting
- Focused Row
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Row Drag & Drop
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Selection
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Columns
- State Persistence
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Appearance
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Templates
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Data Summaries
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Master-Detail
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Export to PDF
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Export to Excel
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Adaptability
- Keyboard Navigation
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Pivot Grid
- Overview
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Data Binding
-
Field Chooser
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Features
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Export to Excel
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Tree List
- Overview
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Data Binding
- Sorting
- Paging
-
Editing
- Node Drag & Drop
- Focused Row
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Selection
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Filtering
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Column Customization
- State Persistence
- Adaptability
- Keyboard Navigation
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Scheduler
- Overview
-
Data Binding
-
Views
-
Features
- Virtual Scrolling
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Grouping
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Customization
- Adaptability
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Html Editor
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Chat
-
Diagram
- Overview
-
Data Binding
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Featured Shapes
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Custom Shapes
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Document Capabilities
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User Interaction
- UI Customization
- Adaptability
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Charts
- Overview
-
Data Binding
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Area Charts
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Bar Charts
- Bullet Charts
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Doughnut Charts
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Financial Charts
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Line Charts
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Pie Charts
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Point Charts
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Polar and Radar Charts
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Range Charts
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Sparkline Charts
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Tree Map
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Funnel and Pyramid Charts
- Sankey Chart
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Combinations
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More Features
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Export
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Selection
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Tooltips
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Zooming
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-
Gantt
- Overview
-
Data
-
UI Customization
- Strip Lines
- Export to PDF
- Sorting
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Filtering
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Gauges
- Overview
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Data Binding
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Bar Gauge
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Circular Gauge
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Linear Gauge
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Navigation
- Overview
- Accordion
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Menu
- Multi View
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Drawer
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Tab Panel
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Tabs
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Toolbar
- Pagination
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Tree View
- Right-to-Left Support
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Layout
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Tile View
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Gallery
- Scroll View
- Box
- Responsive Box
- Resizable
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Editors
- Overview
- Autocomplete
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Calendar
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- Color Box
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Date Box
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Date Range Box
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Drop Down Box
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Number Box
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Select Box
- Switch
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Tag Box
- Text Area
- Text Box
- Validation
- Custom Text Editor Buttons
- Right-to-Left Support
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Forms and Multi-Purpose
- Overview
- Button Group
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Filter Builder
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Form
- Radio Group
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Range Selector
- Numeric Scale (Lightweight)
- Numeric Scale
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- Date-Time Scale
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- Image on Background
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- Range Slider
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Sortable
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File Management
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File Manager
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File System Types
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Customization
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File Uploader
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Actions and Lists
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Action Sheet
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Button
- Floating Action Button
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Context Menu
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List
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Lookup
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Maps
- Overview
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Map
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Vector Map
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Dialogs and Notifications
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Localization
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React Data Grid - SignalR Service
This example demonstrates real-time data update in a DataGrid bound to a SignalR service. Access to the service is configured in a CustomStore.
The CustomStore fetches the remote dataset at launch and keeps its local copy. Whenever the remote dataset changes, the server calls a client-side function that updates the local copy of the dataset (updateStockPrices
in this demo). This function uses the store's push(changes) method.
For server-side configuration, refer to the ASP.NET MVC version of this demo.
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Backend API
x
import React, { useEffect, useState } from 'react';
import DataGrid, {
Column,
} from 'devextreme-react/data-grid';
import CustomStore from 'devextreme/data/custom_store';
import { HubConnectionBuilder, HttpTransportType } from '@aspnet/signalr';
import PriceCell from './PriceCell.tsx';
import ChangeCell from './ChangeCell.tsx';
const App = () => {
const [connectionStarted, setConnectionStarted] = useState(false);
const [dataSource, setDataSource] = useState(null);
useEffect(() => {
const hubConnection = new HubConnectionBuilder()
.withUrl('https://js.devexpress.com/Demos/NetCore/liveUpdateSignalRHub', {
skipNegotiation: true,
transport: HttpTransportType.WebSockets,
})
.build();
const store = new CustomStore({
load: () => hubConnection.invoke('getAllStocks'),
key: 'symbol',
});
hubConnection
.start()
.then(() => {
hubConnection.on('updateStockPrice', (data) => {
store.push([{ type: 'update', key: data.symbol, data }]);
});
setConnectionStarted(true);
setDataSource(store);
});
}, []);
return (
<div>
{connectionStarted && (
<DataGrid
id="gridContainer"
dataSource={dataSource}
showBorders={true}
repaintChangesOnly={true}
highlightChanges={true}
>
<Column dataField="lastUpdate" dataType="date" width={115} format="longTime" />
<Column dataField="symbol" />
<Column dataField="price" dataType="number" format="#0.####" cellRender={PriceCell} />
<Column dataField="change" dataType="number" width={140} format="#0.####" cellRender={ChangeCell} />
<Column dataField="dayOpen" dataType="number" format="#0.####" />
<Column dataField="dayMin" dataType="number" format="#0.####" />
<Column dataField="dayMax" dataType="number" format="#0.####" />
</DataGrid>
)}
</div>
);
};
export default App;
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For more information about integration with push services, refer to the following help topic: Integration with Push Services.
NOTE
Data used in this demo is for demonstration purposes only.