AutoComplete

Autocomplete function of input field.

When To Use#

When you need an input box instead of a selector.
When you need input suggestions or helping text.

The differences with Select are:

AutoComplete is an input box with text hints, and users can type freely. The keyword is aiding input.
Select is selecting among given choices. The keyword is select.

Examples

input here

control mode

Basic Usage

Basic Usage, set data source of autocomplete with options property.

TypeScript
JavaScript
import React, { useState } from 'react';
import { AutoComplete } from 'antd';

const mockVal = (str: string, repeat: number = 1) => ({
  value: str.repeat(repeat),
});
const Complete: React.FC = () => {
  const [value, setValue] = useState('');
  const [options, setOptions] = useState<{ value: string }[]>([]);
  const onSearch = (searchText: string) => {
    setOptions(
      !searchText ? [] : [mockVal(searchText), mockVal(searchText, 2), mockVal(searchText, 3)],
    );
  };
  const onSelect = (data: string) => {
    console.log('onSelect', data);
  };
  const onChange = (data: string) => {
    setValue(data);
  };
  return (
    <>
      <AutoComplete
        options={options}
        style={{ width: 200 }}
        onSelect={onSelect}
        onSearch={onSearch}
        placeholder="input here"
      />
      <br />
      <br />
      <AutoComplete
        value={value}
        options={options}
        style={{ width: 200 }}
        onSelect={onSelect}
        onSearch={onSearch}
        onChange={onChange}
        placeholder="control mode"
      />
    </>
  );
};

ReactDOM.render(<Complete />, mountNode);

Customize Input Component

TypeScript
JavaScript
import React, { useState } from 'react';
import { AutoComplete, Input } from 'antd';

const { TextArea } = Input;

const Complete: React.FC = () => {
  const [options, setOptions] = useState<{ value: string }[]>([]);
  const handleSearch = (value: string) => {
    setOptions(
      !value ? [] : [{ value }, { value: value + value }, { value: value + value + value }],
    );
  };

  const handleKeyPress = (ev: React.KeyboardEvent<HTMLTextAreaElement>) => {
    console.log('handleKeyPress', ev);
  };

  const onSelect = (value: string) => {
    console.log('onSelect', value);
  };

  return (
    <AutoComplete
      options={options}
      style={{ width: 200 }}
      onSelect={onSelect}
      onSearch={handleSearch}
    >
      <TextArea
        placeholder="input here"
        className="custom"
        style={{ height: 50 }}
        onKeyPress={handleKeyPress}
      />
    </AutoComplete>
  );
};

ReactDOM.render(<Complete />, mountNode);

Lookup-Patterns - Certain Category

Demonstration of Lookup Patterns: Certain Category. Basic Usage, set options of autocomplete with options property.

TypeScript
JavaScript
import { Input, AutoComplete } from 'antd';
import { UserOutlined } from '@ant-design/icons';

const renderTitle = (title: string) => (
  <span>
    {title}
    <a
      style={{ float: 'right' }}
      href="https://www.google.com/search?q=antd"
      target="_blank"
      rel="noopener noreferrer"
    >
      more
    </a>
  </span>
);

const renderItem = (title: string, count: number) => ({
  value: title,
  label: (
    <div
      style={{
        display: 'flex',
        justifyContent: 'space-between',
      }}
    >
      {title}
      <span>
        <UserOutlined /> {count}
      </span>
    </div>
  ),
});

const options = [
  {
    label: renderTitle('Libraries'),
    options: [renderItem('AntDesign', 10000), renderItem('AntDesign UI', 10600)],
  },
  {
    label: renderTitle('Solutions'),
    options: [renderItem('AntDesign UI FAQ', 60100), renderItem('AntDesign FAQ', 30010)],
  },
  {
    label: renderTitle('Articles'),
    options: [renderItem('AntDesign design language', 100000)],
  },
];

const Complete: React.FC = () => (
  <AutoComplete
    dropdownClassName="certain-category-search-dropdown"
    dropdownMatchSelectWidth={500}
    style={{ width: 250 }}
    options={options}
  >
    <Input.Search size="large" placeholder="input here" />
  </AutoComplete>
);

ReactDOM.render(<Complete />, mountNode);
.certain-category-search-dropdown .ant-select-dropdown-menu-item-group-title {
  color: #666;
  font-weight: bold;
}

.certain-category-search-dropdown .ant-select-dropdown-menu-item-group {
  border-bottom: 1px solid #f6f6f6;
}

.certain-category-search-dropdown .ant-select-dropdown-menu-item {
  padding-left: 16px;
}

.certain-category-search-dropdown .ant-select-dropdown-menu-item.show-all {
  text-align: center;
  cursor: default;
}

.certain-category-search-dropdown .ant-select-dropdown-menu {
  max-height: 300px;
}

input here

Customized

You could pass AutoComplete.Option as children of AutoComplete, instead of using options。

TypeScript
JavaScript
import React, { useState } from 'react';
import { AutoComplete } from 'antd';

const { Option } = AutoComplete;

const Complete: React.FC = () => {
  const [result, setResult] = useState<string[]>([]);
  const handleSearch = (value: string) => {
    let res: string[] = [];
    if (!value || value.indexOf('@') >= 0) {
      res = [];
    } else {
      res = ['gmail.com', '163.com', 'qq.com'].map(domain => `${value}@${domain}`);
    }
    setResult(res);
  };
  return (
    <AutoComplete style={{ width: 200 }} onSearch={handleSearch} placeholder="input here">
      {result.map((email: string) => (
        <Option key={email} value={email}>
          {email}
        </Option>
      ))}
    </AutoComplete>
  );
};

ReactDOM.render(<Complete />, mountNode);

try to type `b`

Non-case-sensitive AutoComplete

A non-case-sensitive AutoComplete

TypeScript
JavaScript
import { AutoComplete } from 'antd';

const options = [
  { value: 'Burns Bay Road' },
  { value: 'Downing Street' },
  { value: 'Wall Street' },
];

const Complete: React.FC = () => (
  <AutoComplete
    style={{ width: 200 }}
    options={options}
    placeholder="try to type `b`"
    filterOption={(inputValue, option) =>
      option!.value.toUpperCase().indexOf(inputValue.toUpperCase()) !== -1
    }
  />
);

ReactDOM.render(<Complete />, mountNode);

Lookup-Patterns - Uncertain Category

Demonstration of Lookup Patterns: Uncertain Category.

TypeScript
JavaScript
import React, { useState } from 'react';
import { Input, AutoComplete } from 'antd';
import { SelectProps } from 'antd/es/select';

function getRandomInt(max: number, min: number = 0) {
  return Math.floor(Math.random() * (max - min + 1)) + min; // eslint-disable-line no-mixed-operators
}

const searchResult = (query: string) =>
  new Array(getRandomInt(5))
    .join('.')
    .split('.')
    .map((_, idx) => {
      const category = `${query}${idx}`;
      return {
        value: category,
        label: (
          <div
            style={{
              display: 'flex',
              justifyContent: 'space-between',
            }}
          >
            <span>
              Found {query} on{' '}
              <a
                href={`https://s.taobao.com/search?q=${query}`}
                target="_blank"
                rel="noopener noreferrer"
              >
                {category}
              </a>
            </span>
            <span>{getRandomInt(200, 100)} results</span>
          </div>
        ),
      };
    });

const Complete: React.FC = () => {
  const [options, setOptions] = useState<SelectProps<object>['options']>([]);

  const handleSearch = (value: string) => {
    setOptions(value ? searchResult(value) : []);
  };

  const onSelect = (value: string) => {
    console.log('onSelect', value);
  };

  return (
    <AutoComplete
      dropdownMatchSelectWidth={252}
      style={{ width: 300 }}
      options={options}
      onSelect={onSelect}
      onSearch={handleSearch}
    >
      <Input.Search size="large" placeholder="input here" enterButton />
    </AutoComplete>
  );
};

ReactDOM.render(<Complete />, mountNode);

API#

Property	Description	Type	Default
allowClear	Show clear button	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 the same as onChange. Besides, clicking on the option will not trigger the onSearch event.

Related issue: #18230 #17916

Part of the api in v3 are not available in v4?#

AutoComplete is an Input component that supports auto complete tips. As such, it should not support props like labelInValue that affect value display. In v3, the AutoComplete implementation can not handle the case where the value and label are identical. v4 not longer support label as the value input.

Besides, to unify the API, dataSource is replaced with options. You can migrate with the following change:

v3#

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

v4#

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