ReactJS UI Ant Design AutoComplete Component

Last Updated : 21 May, 2021

Ant Design Library has this component pre-built, and it is very easy to integrate as well. AutoComplete Component is used for auto-completing the free text value with the option value. We can use the following approach in ReactJS to use the Ant Design AutoComplete Component.

AutoComplete Methods:

blur(): This method is used to remove the focus from the element.
focus(): This method is used to get the focus on the element.

AutoComplete Props:

allowClear: It is used to show the clear button.
autoFocus: It is used to get the focus when the component is mounted.
backfill: If this value is true, then it back fills the selected item the input when using the keyboard.
children(for customize input element): It is used to customize the input element.
children(for dataSource): It is used for the data source to auto-complete.
defaultActiveFirstOption: It is used to denote whether the first option is to be active by default or not.
defaultOpen: It is used to indicate the initial open state of the dropdown.
defaultValue: It is used to indicate the initially selected option.
disabled: It is used to disable the select.
dropdownClassName: It is used to pass the class name for the styling of the dropdown menu.
dropdownMatchSelectWidth: It is used to determine whether the select input and the dropdown menu are of the same width or not.
filterOption: It is used to apply the filter options against it if this is set to true.
notFoundContent: It is used to show the content when no result matches.
open: It is used to control the open state of the dropdown.
options: It is used to pass the select options.
placeholder: It is used to indicate the placeholder of input.
value: It is used to denote the selected option value.
onBlur: It is a callback function that is triggered on leaving the component.
onChange: It is a callback function that is triggered on the selection of an option or input value change.
onDropdownVisibleChange: It is a callback function that is triggered when the dropdown is open.
onFocus: It is a callback function that is triggered when entering the component.
onSearch: It is a callback function that is triggered when searching items.
onSelect: It is a callback function that is triggered on the selection of an option.

Creating React Application And Installing Module:

Step 1: Create a React application using the following command:
```
npx create-react-app foldername
```
Step 2: After creating your project folder i.e. foldername, move to it using the following command:
```
cd foldername
```
Step 3: After creating the ReactJS application, Install the required module using the following command:
```
npm install antd
```

Project Structure: It will look like the following.

Project Structure

Example: Now write down the following code in the App.js file. Here, App is our default component where we have written our code.

App.js

import React, { useState } from 'react'
import "antd/dist/antd.css"; 
import { AutoComplete } from 'antd'; 
  
export default function App() { 
  
  const [currentValue, setCurrentValue] = useState('') 
  const options = [ 
    {label: 'One', value: 'One'},  
    {label: 'Two', value: 'Two'}, 
    {label: 'Three', value: 'Three'},  
    {label: 'Four', value: 'Four'}, 
    {label: 'Five', value: 'Five'} 
  ] 
  
  return ( 
    <div style={{ display: 'block', 
                  width: 700, padding: 30 }}> 
      <h4>ReactJS Ant-Design AutoComplete Component</h4> 
      <AutoComplete 
        options={options} 
        style={{ width: 200 }} 
        onSelect={(value)=> { 
            setCurrentValue(value) 
        }} 
        placeholder="Enter your text"
      /> <br /> 
  
      <p>Selected Value {`${currentValue}`} </p> 
  
    </div> 
  ); 
}