ant-design
  1. ant-design-dropdown
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Ant Design Dropdown

Ant Design Dropdown is a common UI element used in web applications to provide users with a selection of options to choose from. It's a versatile component that can be used in a variety of use cases, such as navigation menus, filters, and action buttons.

Syntax

The syntax for using Ant Design Dropdown component is as follows:

import { Dropdown, Menu } from 'antd';

const menu = (
  <Menu>
    <Menu.Item key="1">Option 1</Menu.Item>
    <Menu.Item key="2">Option 2</Menu.Item>
    <Menu.Item key="3">Option 3</Menu.Item>
  </Menu>
);

const ButtonDropdown = () => {
  return (
    <Dropdown overlay={menu}>
      <Button>
        Actions <DownOutlined />
      </Button>
    </Dropdown>
  );
};

export default ButtonDropdown;

As you can see, the Dropdown component takes in an overlay prop, which is the menu content to be displayed when the dropdown is activated. In this example, we're using a Menu component to create a simple list of options.

Use and Importance

Ant Design Dropdown is a crucial component to have in any web application where users need to make choices from a pre-defined list of options. It's flexible and can be used in a variety of ways, from a simple button with a dropdown to a complex navigation menu with multiple levels.

Using Ant Design Dropdown also ensures a consistent user experience across your application. With its built-in styles and pre-defined components, your dropdowns will have a cohesive look and feel that matches the Ant Design design language.

Example

Take a look at this example of a filter dropdown built using Ant Design:

import { useState } from 'react';
import { Dropdown, Menu, Checkbox } from 'antd';

const options = ['Option 1', 'Option 2', 'Option 3', 'Option 4'];

const FilterDropdown = () => {
  const [selectedOptions, setSelectedOptions] = useState([]);

  const menu = (
    <Menu>
      {options.map((option) => (
        <Menu.Item key={option}>
          <Checkbox
            checked={selectedOptions.includes(option)}
            onChange={() =>
              setSelectedOptions(
                selectedOptions.includes(option)
                  ? selectedOptions.filter((o) => o !== option)
                  : [...selectedOptions, option]
              )
            }
          >
            {option}
          </Checkbox>
        </Menu.Item>
      ))}
    </Menu>
  );

  return (
    <Dropdown overlay={menu}>
      <Button>
        Filter <DownOutlined />
      </Button>
    </Dropdown>
  );
};

export default FilterDropdown;

In this example, we're using Ant Design Checkbox component inside the dropdown menu to allow users to select multiple options. The selected options are stored in state using useState and are displayed as checkboxes inside the menu.

Summary

Ant Design Dropdown is a versatile and essential component for web applications. It lets users choose from a pre-defined list of options and provides a clean and consistent user experience. With Ant Design, creating dropdowns is a breeze, and you can customize them to match your application's design language and needs. Whether it's for navigation, filtering, or action menus, Ant Design Dropdown has got you covered.

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