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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
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Field Chooser
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Features
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Export to Excel
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Tree List
- Overview
-
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
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Data Binding
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Views
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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
-
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
-
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
- Splitter
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Gallery
- Scroll View
- Box
- Responsive Box
- Resizable
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Editors
- Overview
- Autocomplete
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Calendar
- Check Box
- 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
- Editor Appearance Variants
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Forms and Multi-Purpose
- Overview
- Button Group
- Field Set
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Filter Builder
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Form
- Radio Group
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Range Selector
- Numeric Scale (Lightweight)
- Numeric Scale
- Date-Time Scale (Lightweight)
- Date-Time Scale
- Logarithmic Scale
- Discrete scale
- Custom Formatting
- Use Range Selection for Calculation
- Use Range Selection for Filtering
- Image on Background
- Chart on Background
- Customized Chart on Background
- Chart on Background with Series Template
- Range Slider
- Slider
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Sortable
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File Management
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File Manager
- Overview
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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
- Overview
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Action Sheet
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Button
- Floating Action Button
- Drop Down 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 Gauges - Update Bar Gauge Data at Runtime
This demo illustrates how to bind an array of values to the BarGauge. Since an array can not be bound to a field as a regular value, it is bound as a computed one.
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Backend API
x
import React, { useCallback, useState } from 'react';
import { BarGauge, Label } from 'devextreme-react/bar-gauge';
import { SelectBox } from 'devextreme-react/select-box';
import { colors, colorLabel } from './data.ts';
const palette = ['#ff0000', '#00ff00', '#0000ff'];
function getBasicColors(value: string | any[]) {
const code = Number(`0x${value.slice(1)}`);
return [
(code >> 16) & 0xff,
(code >> 8) & 0xff,
code & 0xff,
];
}
function App() {
const [basis, setBasis] = useState(getBasicColors(colors[0].code));
const [currentColor, setCurrentColor] = useState(colors[0].code);
const onSelectionChanged = useCallback(({ selectedItem: { code } }) => {
setCurrentColor(code);
setBasis(getBasicColors(code));
}, [setCurrentColor, setBasis]);
return (
<div>
<div className="long-title">
<h3>Colors Representation via Basic Colors</h3>
</div>
<div id="gauge-demo">
<BarGauge
id="gauge"
startValue={0}
endValue={255}
palette={palette}
values={basis}
>
<Label visible={false} />
</BarGauge>
<div className="action-container">
<SelectBox
id="select-color"
width={150}
inputAttr={colorLabel}
dataSource={colors}
value={currentColor}
displayExpr="name"
valueExpr="code"
onSelectionChanged={onSelectionChanged}
/>
<div className="color-box" style={{ backgroundColor: currentColor }}></div>
</div>
</div>
</div>
);
}
export default App;
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