---
category: Components
type: Data Entry
cols: 2
title: AutoComplete
---
Autocomplete function of input field.
## When To Use
When there is a need for autocomplete functionality.
## API
```jsx
const dataSource = ['12345', '23456', '34567'];
< AutoComplete dataSource = {dataSource} / >
```
| Property | Description | Type | Default |
| -------- | ----------- | ---- | ------- |
| allowClear | Show clear button, effective in multiple mode only. | boolean | false |
| autoFocus | get focus when component mounted | boolean | false |
| backfill | 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 for autocomplet | React.ReactElement< OptionProps > / Array< React.ReactElement< OptionProps > > | - |
| dataSource | Data source for autocomplete | [DataSourceItemType ](https://git.io/vMMKF )\[] | |
| defaultActiveFirstOption | Whether active first option by default | boolean | true |
| defaultValue | Initial selected option. | string\|string\[]\|{ key: string, label: string\|ReactNode }\|Array< { key: string, label: string\|ReactNode }> | - |
| disabled | Whether disabled select | boolean | false |
| 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 or function(inputValue, option) | true |
| optionLabelProp | Which prop value of option will render as content of select. | string | `children` |
| placeholder | placeholder of input | string | - |
| value | selected option | string\|string\[]\|{ key: string, label: string\|ReactNode }\|Array< { key: string, label: string\|ReactNode }> | - |
| onChange | Called when select an option or input value change, or value of input is changed | function(value, label) | - |
| 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 |
| ---- | ----------- |
| focus() | get focus |
| blur() | remove focus |
