React Accordion API

The Accordion UI component contains several panels displayed one under another. These panels can be collapsed or expanded by an end user, which makes this UI component very useful for presenting information in a limited amount of space.

import Accordion from "devextreme-react/accordion"
Selector: Accordion

Configuration

An object defining configuration properties for the Accordion UI component.

Name Description
accessKey

Specifies the shortcut key that sets focus on the UI component.

activeStateEnabled

Specifies whether the UI component changes its visual state as a result of user interaction.

animationDuration

A number specifying the time in milliseconds spent on the animation of the expanding or collapsing of a panel.

collapsible

Specifies whether all items can be collapsed or whether at least one item must always be expanded.

dataSource

Binds the UI component to data.

deferRendering

Specifies whether to render the panel's content when it is displayed. If false, the content is rendered immediately.

disabled

Specifies whether the UI component responds to user interaction.

elementAttr

Specifies the global attributes to be attached to the UI component's container element.

focusStateEnabled

Specifies whether the UI component can be focused using keyboard navigation.

height

Specifies the UI component's height.

hint

Specifies text for a hint that appears when a user pauses on the UI component.

hoverStateEnabled

Specifies whether the UI component changes its state when a user pauses on it.

itemComponent

An alias for the itemTemplate property specified in React. Accepts a custom component. Refer to Using a Custom Component for more information.

itemHoldTimeout

The time period in milliseconds before the onItemHold event is raised.

itemRender

An alias for the itemTemplate property specified in React. Accepts a rendering function. Refer to Using a Rendering Function for more information.

items

An array of items displayed by the UI component.

itemTemplate

Specifies a custom template for items.

itemTitleComponent

An alias for the itemTitleTemplate property specified in React. Accepts a custom component. Refer to Using a Custom Component for more information.

itemTitleRender

An alias for the itemTitleTemplate property specified in React. Accepts a rendering function. Refer to Using a Rendering Function for more information.

itemTitleTemplate

Specifies a custom template for item titles.

keyExpr

Specifies the key property that provides key values to access data items. Each key value must be unique.

multiple

Specifies whether the UI component can expand several items or only a single item at once.

noDataText

Specifies the text or HTML markup displayed by the UI component if the item collection is empty.

onContentReady

A function that is executed when the UI component is rendered and each time the component is repainted.

onDisposing

A function that is executed before the UI component is disposed of.

onInitialized

A function used in JavaScript frameworks to save the UI component instance.

onItemClick

A function that is executed when a collection item is clicked or tapped.

onItemContextMenu

A function that is executed when a collection item is right-clicked or pressed.

onItemHold

A function that is executed when a collection item has been held for a specified period.

onItemRendered

A function that is executed after a collection item is rendered.

onItemTitleClick

A function that is executed when an accordion item's title is clicked or tapped.

onOptionChanged

A function that is executed after a UI component property is changed.

onSelectionChanged

A function that is executed when a collection item is selected or selection is canceled.

repaintChangesOnly

Specifies whether to repaint only those elements whose data changed.

rtlEnabled

Switches the UI component to a right-to-left representation.

selectedIndex

The index number of the currently expanded item.

selectedItem

The expanded item object.

selectedItemKeys

Specifies an array of currently expanded item keys.

selectedItems

An array of currently expanded item objects.

tabIndex

Specifies the number of the element when the Tab key is used for navigating.

visible

Specifies whether the UI component is visible.

width

Specifies the UI component's width.

Methods

This section describes members used to manipulate the Accordion UI component.

Name Description
beginUpdate()

Postpones rendering that can negatively affect performance until the endUpdate() method is called.

collapseItem(index)

Collapses an item with a specific index.

defaultOptions(rule)

Specifies the device-dependent default configuration properties for this component.

dispose()

Disposes of all the resources allocated to the Accordion instance.

element()

Gets the root UI component element.

endUpdate()

Refreshes the UI component after a call of the beginUpdate() method.

expandItem(index)

Expands an item with a specific index.

focus()

Sets focus on the UI component.

getDataSource()

Gets the DataSource instance.

getInstance(element)

Gets the instance of a UI component found using its DOM node.

instance()

Gets the UI component's instance. Use it to access other methods of the UI component.

off(eventName)

Detaches all event handlers from a single event.

off(eventName, eventHandler)

Detaches a particular event handler from a single event.

on(eventName, eventHandler)

Subscribes to an event.

on(events)

Subscribes to events.

option()

Gets all UI component properties.

option(optionName)

Gets the value of a single property.

option(optionName, optionValue)

Updates the value of a single property.

option(options)

Updates the values of several properties.

registerKeyHandler(key, handler)

Registers a handler to be executed when a user presses a specific key.

repaint()

Renders the component again without reloading data. Use the method to update the component's markup and appearance dynamically.

resetOption(optionName)

Resets a property to its default value.

updateDimensions()

Updates the dimensions of the UI component contents.

See Also

Events

This section describes events fired by this UI component.

Name Description
contentReady

Raised when the UI component is rendered and each time the component is repainted.

disposing

Raised before the UI component is disposed of.

initialized

Raised only once, after the UI component is initialized.

itemClick

Raised when a collection item is clicked or tapped.

itemContextMenu

Raised when a collection item is right-clicked or pressed.

itemHold

Raised when a collection item has been held for a specified period.

itemRendered

Raised after a collection item is rendered.

itemTitleClick

Raised when an accordion item's title is clicked or tapped.

optionChanged

Raised after a UI component property is changed.

selectionChanged

Raised when a collection item is expanded or collapsed.

See Also

Types

Name Description
ContentReadyEvent

The type of the contentReady event handler's argument.

DisposingEvent

The type of the disposing event handler's argument.

InitializedEvent

The type of the initialized event handler's argument.

ItemClickEvent

The type of the itemClick event handler's argument.

ItemContextMenuEvent

The type of the itemContextMenu event handler's argument.

ItemHoldEvent

The type of the itemHold event handler's argument.

ItemRenderedEvent

The type of the itemRendered event handler's argument.

ItemTitleClickEvent

The type of the itemTitleClick event handler's argument.

OptionChangedEvent

The type of the optionChanged event handler's argument.

SelectionChangedEvent

The type of the selectionChanged event handler's argument.