ant-design/components/auto-complete/index.en-US.md

category	type	cols	title	cover
Components	Data Entry	2	AutoComplete	https://gw.alipayobjects.com/zos/alicdn/qtJm4yt45/AutoComplete.svg

Autocomplete function of input field.

When To Use

When there is a need for autocomplete functionality.

API

Property	Description	Type	Default	Version
allowClear	Show clear button, effective in multiple mode only	boolean	false
autoFocus	If get focus when component mounted	boolean	false
backfill	If backfill selected item the input when using keyboard	boolean	false
children (for customize input element)	Customize input element	HTMLInputElement | HTMLTextAreaElement | React.ReactElement<InputProps>	<Input />
children (for dataSource)	Data source to auto complete	React.ReactElement<OptionProps> | Array<React.ReactElement<OptionProps>>	-
defaultActiveFirstOption	Whether active first option by default	boolean	true
defaultOpen	Initial open state of dropdown	boolean	-
defaultValue	Initial selected option	string	-
disabled	Whether disabled select	boolean	false
dropdownClassName	The className of dropdown menu	string	-
dropdownMatchSelectWidth	Determine whether the dropdown menu and the select input are the same width. Default set min-width same as input. Will ignore when value less than select width. false will disable virtual scroll	boolean | number	true
filterOption	If true, filter options by input, if function, filter options against it. The function will receive two arguments, inputValue and option, if the function returns true, the option will be included in the filtered set; Otherwise, it will be excluded	boolean | function(inputValue, option)	true
notFoundContent	Specify content to show when no result matches	string	Not Found
open	Controlled open state of dropdown	boolean	-
options	Select options. Will get better perf than jsx definition	{ label, value }[]	-
placeholder	The placeholder of input	string	-
value	Selected option	string	-
onBlur	Called when leaving the component	function()	-
onChange	Called when select an option or input value change, or value of input is changed	function(value)	-
onDropdownVisibleChange	Call when dropdown open	function(open)	-
onFocus	Called when entering the component	function()	-
onSearch	Called when searching items	function(value)	-
onSelect	Called when a option is selected. param is option's value and option instance	function(value, option)	-

Methods

Name	Description	Version
blur()	Remove focus
focus()	Get focus

FAQ

Why doesn't the text composition system work well with onSearch in controlled mode?

Please use onChange to manage control state. onSearch is used for searching input which is not same as onChange. Besides, clicking on the option will not trigger the onSearch event.

Related issue: #18230 #17916

Part of api from v3 not available in v4?

AutoComplete is a Input component support auto complete tips which should not support labelInValue prop to modify dispaly value in input. In v3, AutoComplete realization can not handle case that user type match of both value & label are the same. v4 not longer support label as the value input.

Besides, to unique API, dataSource replaced with options:

v3

dataSource = ['light', 'bamboo'];
// or
dataSource = [
  { value: 'light', text: 'Light' },
  { value: 'bamboo', text: 'Bamboo' },
];

v4

options = [
  { value: 'light', label: 'Light' },
  { value: 'bamboo', label: 'Bamboo' },
];