JavaScript/jQuery DropDownBox API

The DropDownBox UI component consists of a text field, which displays the current value, and a drop-down field, which can contain any UI element.

import DropDownBox from "devextreme/ui/drop_down_box"

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See Also
jQuery
Angular
Vue
React
jQuery
Angular
Vue
React

Configuration

An object defining configuration properties for the DropDownBox UI component.

Name Description
acceptCustomValue

Specifies whether the UI component allows a user to enter a custom value.
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.
buttons

Allows you to add custom buttons to the input text field.
contentComponent

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

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

Specifies a custom template for the drop-down content.
dataSource

Binds the UI component to data.
deferRendering

Specifies whether to render the drop-down field's content when it is displayed. If false, the content is rendered immediately.
disabled

Specifies whether the UI component responds to user interaction.
displayExpr

Specifies the data field whose values should be displayed.
displayValueFormatter

Customizes text before it is displayed in the input field.
dropDownButtonComponent

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

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

Specifies a custom template for the drop-down button.
dropDownOptions

Configures the drop-down field which holds the content.
elementAttr

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

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

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

Specifies a custom template for the text field. Must contain the TextBox UI component.
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.
inputAttr

Specifies the attributes to be passed on to the underlying HTML element.
isDirty

Specifies whether the component's current value differs from the initial value.
isValid

Specifies or indicates whether the editor's value is valid.
items

An array of items used to synchronize the DropDownBox with an embedded UI component.
label

Specifies a text string used to annotate the editor's value.
labelMode

Specifies the label's display mode.
maxLength

Specifies the maximum number of characters you can enter into the textbox.
name

The value to be assigned to the name attribute of the underlying HTML element.
onChange

A function that is executed when the UI component loses focus after the text field's content was changed using the keyboard.
onClosed

A function that is executed once the drop-down editor is closed.
onCopy

A function that is executed when the UI component's input has been copied.
onCut

A function that is executed when the UI component's input has been cut.
onDisposing

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

A function that is executed when the Enter key has been pressed while the UI component is focused.
onFocusIn

A function that is executed when the UI component gets focus.
onFocusOut

A function that is executed when the UI component loses focus.
onInitialized

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

A function that is executed each time the UI component's input is changed while the UI component is focused.
onKeyDown

A function that is executed when a user is pressing a key on the keyboard.
onKeyUp

A function that is executed when a user releases a key on the keyboard.
onOpened

A function that is executed once the drop-down editor is opened.
onOptionChanged

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

A function that is executed when the UI component's input has been pasted.
onValueChanged

A function that is executed after the UI component's value is changed.
opened

Specifies whether or not the drop-down editor is displayed.
openOnFieldClick

Specifies whether a user can open the drop-down list by clicking a text field.
placeholder

Specifies a text string displayed when the editor's value is empty.
readOnly

Specifies whether the editor is read-only.
rtlEnabled

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

Specifies whether to display the Clear button in the UI component.
showDropDownButton

Specifies whether the drop-down button is visible.
stylingMode

Specifies how the UI component's text field is styled.
tabIndex

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

The read-only property that holds the text displayed by the UI component input element.
validationError

Information on the broken validation rule. Contains the first item from the validationErrors array.
validationErrors

An array of the validation rules that failed.
validationMessageMode

Specifies how the message about the validation rules that are not satisfied by this editor's value is displayed.
validationMessagePosition

Specifies the position of a validation message relative to the component. The validation message describes the validation rules that this component's value does not satisfy.
validationStatus

Indicates or specifies the current validation status.
value

Specifies the currently selected value. May be an object if dataSource contains objects, the store key is specified, and valueExpr is not set.
valueChangeEvent

Specifies the DOM events after which the UI component's value should be updated.
valueExpr

Specifies which data field provides unique values to the UI component's value.
visible

Specifies whether the UI component is visible.
width

Specifies the UI component's width.

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See Also
jQuery
Angular
Vue
React

Methods

This section describes members used to manipulate data.

Name Description
beginUpdate()

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

Removes focus from the input element.
clear()

Resets the value property to the default value.
close()

Closes the drop-down editor.
content()

Gets the popup window's content.
defaultOptions(rule)

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

Disposes of all the resources allocated to the DropDownBox instance.
element()

Gets the root UI component element.
endUpdate()

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

Gets the UI component's <input> element.
focus()

Sets focus to the input element representing the UI component.
getButton(name)

Gets an instance of a custom action button.
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 editor.
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.
reset()

Resets the value property to the initial value.
reset(value)

Resets the value property to the value passed as an argument.
resetOption(optionName)

Resets a property to its default value.

Events

This section describes events that this UI component raises.

Name Description
change

Raised when the UI component loses focus after the text field's content was changed using the keyboard.
closed

Raised once the drop-down editor is closed.
copy

Raised when the UI component's input has been copied.
cut

Raised when the UI component's input has been cut.
disposing

Raised before the UI component is disposed of.
enterKey

Raised when the Enter key has been pressed while the UI component is focused.
focusIn

Raised when the UI component gets focus.
focusOut

Raised when the UI component loses focus.
initialized

Raised only once, after the UI component is initialized.
input

Raised each time the UI component's input is changed while the UI component is focused.
keyDown

Raised when a user is pressing a key on the keyboard.
keyUp

Raised when a user releases a key on the keyboard.
opened

Raised once the drop-down editor is opened.
optionChanged

Raised after a UI component property is changed.
paste

Raised when the UI component's input has been pasted.
valueChanged

Raised after the UI component's value is changed.

See Also
jQuery
Angular
Vue
React

Types

Name Description
ChangeEvent

The type of the change event handler's argument.
ClosedEvent

The type of the closed event handler's argument.
ContentReadyEvent

The type of the contentReady event handler's argument.
CopyEvent

The type of the copy event handler's argument.
CutEvent

The type of the cut event handler's argument.
DisposingEvent

The type of the disposing event handler's argument.
DropDownPredefinedButton

Specifies a custom button for an input text field.
EnterKeyEvent

The type of the enterKey event handler's argument.
FocusInEvent

The type of the focusIn event handler's argument.
FocusOutEvent

The type of the focusOut event handler's argument.
InitializedEvent

The type of the initialized event handler's argument.
InputEvent

The type of the input event handler's argument.
KeyDownEvent

The type of the keyDown event handler's argument.
KeyUpEvent

The type of the keyUp event handler's argument.
OpenedEvent

The type of the opened event handler's argument.
OptionChangedEvent

The type of the optionChanged event handler's argument.
PasteEvent

The type of the paste event handler's argument.
TextBoxType

Specifies the text box type.
ValueChangedEvent

The type of the valueChanged event handler's argument.