JavaScript/jQuery DropDownButton API

The DropDownButton is a button that opens a drop-down menu.

import DropDownButton from "devextreme/ui/drop_down_button"

Configuration

This section describes properties that configure the DropDownButton UI component's contents, behavior, and appearance.

Name	Description
accessKey	Specifies the shortcut key that sets focus on the UI component.
activeStateEnabled	Specifies whether the UI component changes its state as a result of user interaction.
dataSource	Provides data for the drop-down menu.
deferRendering	Specifies whether to wait until the drop-down menu is opened the first time to render its content.
disabled	Specifies whether the UI component responds to user interaction.
displayExpr	Specifies the data field whose values should be displayed in the drop-down menu.
dropDownContentComponent	An alias for the dropDownContentTemplate property specified in React. Accepts a custom component. Refer to Using a Custom Component for more information.
dropDownContentRender	An alias for the dropDownContentTemplate property specified in React. Accepts a rendering function. Refer to Using a Rendering Function for more information.
dropDownContentTemplate	Specifies custom content for the drop-down field.
dropDownOptions	Configures the drop-down field.
elementAttr	Specifies the global attributes to be attached to the UI component's container element.
focusStateEnabled	Specifies whether users can use keyboard to focus the UI component.
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 hovers the mouse pointer over it.
icon	Specifies the button's icon.
itemComponent	An alias for the itemTemplate property specified in React. Accepts a custom component. Refer to Using a Custom Component for more information.
itemRender	An alias for the itemTemplate property specified in React. Accepts a rendering function. Refer to Using a Rendering Function for more information.
items	Provides drop-down menu items.
itemTemplate	Specifies a custom template for drop-down menu items.
keyExpr	Specifies which data field provides keys used to distinguish between the selected drop-down menu items.
noDataText	Specifies the text or HTML markup displayed in the drop-down menu when it does not contain any items.
onButtonClick	A function that is executed when the button is clicked or tapped. If splitButton is true, this function is executed for the action button only.
onContentReady	A function that is executed when the UI component's content is ready and each time the content is changed.
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 drop-down menu item is clicked.
onOptionChanged	A function that is executed after a UI component property is changed.
onSelectionChanged	A function that is executed when an item is selected or selection is canceled. In effect when useSelectMode is true.
opened	Specifies whether the drop-down menu is opened.
rtlEnabled	Switches the UI component to a right-to-left representation.
selectedItem	Contains the selected item's data. Available when useSelectMode is true.
selectedItemKey	Contains the selected item's key and allows you to specify the initially selected item. Applies when useSelectMode is true.
showArrowIcon	Specifies whether the arrow icon should be displayed.
splitButton	Specifies whether to split the button in two: one executes an action, the other opens and closes the drop-down menu.
stylingMode	Specifies how the button is styled.
tabIndex	Specifies the number of the element when the Tab key is used for navigating.
text	Specifies the button's text. Applies only if useSelectMode is false.
useItemTextAsTitle	Specifies whether the DropDownButton uses item's text a title attribute.
useSelectMode	Specifies whether the UI component stores the selected drop-down menu item.
visible	Specifies whether the UI component is visible.
width	Specifies the UI component's width.
wrapItemText	Specifies whether text that exceeds the drop-down list width should be wrapped.

Methods

This section describes methods that control the DropDownButton UI component.

Name	Description
beginUpdate()	Prevents the UI component from refreshing until the endUpdate() method is called.
close()	Closes the drop-down menu.
defaultOptions(rule)	Specifies the device-dependent default configuration properties for this component.
dispose()	Disposes of all the resources allocated to the DropDownButton instance.
element()	Gets the root UI component element.
endUpdate()	Refreshes the UI component after a call of the beginUpdate() method.
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.
open()	Opens the drop-down menu.
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()	Repaints the UI component without reloading data. Call it to update the UI component's markup.
resetOption(optionName)	Resets a property to its default value.
toggle()	Opens or closes the drop-down menu, reversing the current state.
toggle(visibility)	Opens or closes the drop-down menu, depending on the argument.

Events

This section describes events that the DropDownButton UI component raises.

Name	Description
buttonClick	Raised when the button is clicked.
contentReady	Raised when the UI component's content is ready.
disposing	Raised before the UI component is disposed of.
initialized	Raised only once, after the UI component is initialized.
itemClick	Raised when an item in the drop-down filed is clicked.
optionChanged	Raised after a UI component property is changed.
selectionChanged	Raised when an item is selected or selection is canceled.

JavaScript/jQuery DropDownButton API

See Also

Configuration

See Also

Methods

See Also

Events

See Also