PromptBoxComponent

Updated on Feb 5, 2026

Represents the Kendo UI PromptBox component for Angular.

html

<kendo-promptbox placeholder="Ask a question..."></kendo-promptbox>

Selector

kendo-promptbox

Export Name

Accessible in templates as #kendoPromptBoxInstance="kendoPromptBox"

Inputs

Name	Type	Default	Description
actionButton	boolean | ActionButtonSettings	true	Controls the visibility and configuration of the Action button in the end affix.
disabled	boolean	false	Enables or disables the PromptBox.
fileSelectButton	boolean | FileSelectButtonSettings	false	Controls the visibility and configuration of the File Select button in the end affix.
loading	boolean	false	Sets the loading state of the Action button.
maxTextAreaHeight	number		Sets the maximum height of the textarea in pixels. The textarea resizes automatically until it reaches this height. When the content exceeds this height, a scrollbar appears.
mode	PromptBoxMode	'auto'	Sets the mode of the PromptBox. See example.
placeholder	string	''	Sets the placeholder text displayed in the PromptBox when it is empty.
readonly	boolean	false	Sets the read-only state of the PromptBox. When set to true, the PromptBox content cannot be modified but remains accessible.
rows	number		Sets the number of visible text lines in the textarea. Applies only when the mode is set to multi.
speechToTextButton	boolean | SpeechToTextButtonSettings	true	Controls the visibility and configuration of the Speech to Text button in the end affix.
title	string	''	Sets the title attribute of the input or textarea element.
value	string		Sets the value of the PromptBox.

Fields

Name	Type	Default	Description
attachments	FileInfo[]		Provides the currently attached files in the PromptBox component.

Events

Name	Type	Description
fileRemove	EventEmitter<FileInfo>	Fires each time you remove a file from the PromptBox.
inputBlur	EventEmitter<void>	Fires each time the internal input element is blurred.
inputFocus	EventEmitter<void>	Fires each time the internal input element is focused.
blur	EventEmitter<void>	Fires each time the PromptBox gets blurred.
focus	EventEmitter<void>	Fires each time the PromptBox is focused.
promptAction	EventEmitter<ActionButtonEvent>	Fires each time you click the Action button.
selectAttachments	EventEmitter<SelectEvent>	Fires each time you select files using the File Select button.
speechToTextClick	EventEmitter<any>	Fires each time you click the Speech to Text button.
speechToTextEnd	EventEmitter<any>	Fires each time the speech recognition service disconnects.
speechToTextError	EventEmitter<SpeechToTextErrorEvent>	Fires when a speech recognition error occurs.
speechToTextResult	EventEmitter<SpeechToTextResultEvent>	Fires when the speech recognition service returns a result.
speechToTextStart	EventEmitter<any>	Fires each time the speech recognition service begins listening to incoming audio.
valueChange	EventEmitter<string>	Fires each time the value of the PromptBox changes.

Methods

blur
Blurs the PromptBox.

clearAttachments
Clears all attached files from the PromptBox.

focus
Focuses the PromptBox.