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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
-
Tree List
- Overview
-
Data Binding
- Sorting
- Paging
-
Editing
- Node Drag & Drop
- Focused Row
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Selection
-
Filtering
-
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
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Diagram
- Overview
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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
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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
-
Export
-
Selection
-
Tooltips
-
Zooming
-
-
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
-
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 Chat - Customization
Use the following properties to customize the Chat component:
-
To display/hide Chat UI elements:
-
To modify date/time formats:
-
To deactivate Chat, use the disabled property.
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Backend API
x
import React, { useState, useCallback } from 'react';
import Chat, { ChatTypes } from 'devextreme-react/chat';
import { MessageEnteredEvent } from 'devextreme/ui/chat';
import SelectBox from 'devextreme-react/select-box';
import CheckBox from 'devextreme-react/check-box';
import {
currentUser,
messages as initialMessages,
dayHeaderFormats as headerFormats,
messageTimestampFormats as messageTimestamps,
messageTimestampLabel,
dayHeaderLabel,
} from './data.ts';
export default function App() {
const [messages, setMessages] = useState<ChatTypes.Message[]>(initialMessages);
const [showAvatar, setShowAvatar] = useState(true);
const [showUsername, setShowUsername] = useState(true);
const [showDayHeaders, setDayHeaders] = useState(true);
const [dayHeaderFormat, setDayHeaderFormat] = useState(headerFormats[0]);
const [showMessageTimestamp, setMessageTimestamp] = useState(true);
const [messageTimestampFormat, setMessageTimestampFormat] = useState(messageTimestamps[0]);
const [isDisabled, setDisabled] = useState(false);
const onMessageEntered = useCallback(({ message }: MessageEnteredEvent) => {
setMessages((prevMessages) => [...prevMessages, message]);
}, []);
return (
<React.Fragment>
<div className="chat-container">
<Chat
height={710}
items={messages}
user={currentUser}
disabled={isDisabled}
showAvatar={showAvatar}
showUserName={showUsername}
showDayHeaders={showDayHeaders}
showMessageTimestamp={showMessageTimestamp}
dayHeaderFormat={dayHeaderFormat}
messageTimestampFormat={messageTimestampFormat}
onMessageEntered={onMessageEntered}
/>
</div>
<div className="options">
<div className="caption">Options</div>
<div className="option">
<CheckBox
text="Avatar"
value={showAvatar}
onValueChange={setShowAvatar}
/>
</div>
<div className="option">
<CheckBox
text="User Name"
value={showUsername}
onValueChange={setShowUsername}
/>
</div>
<div className="option-separator"></div>
<div className="option">
<CheckBox
text="Day Headers"
value={showDayHeaders}
onValueChange={setDayHeaders}
/>
</div>
<div className="option">
<span>Day Header Format:</span>
<SelectBox
items={headerFormats}
value={dayHeaderFormat}
inputAttr={dayHeaderLabel}
onValueChange={setDayHeaderFormat}
/>
</div>
<div className="option-separator"></div>
<div className="option">
<CheckBox
text="Message Timestamp"
value={showMessageTimestamp}
onValueChange={setMessageTimestamp}
/>
</div>
<div className="option">
<span>Message Timestamp Format:</span>
<SelectBox
items={messageTimestamps}
value={messageTimestampFormat}
inputAttr= {messageTimestampLabel}
onValueChange={setMessageTimestampFormat}
/>
</div>
<div className="option-separator"></div>
<div className="option">
<CheckBox
text="Disable Chat"
value={isDisabled}
onValueChange={setDisabled}
/>
</div>
</div>
</React.Fragment>
);
}
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