Button Dropdown

import React from 'react';
import { ButtonDropdown, DropdownToggle, DropdownMenu, DropdownItem } from 'reactstrap';
export default class Example extends React.Component {
  constructor(props) {
    super(props);
    this.toggle = this.toggle.bind(this);
    this.state = {
      dropdownOpen: false
    };
  }
  toggle() {
    this.setState({
      dropdownOpen: !this.state.dropdownOpen
    });
  }
  render() {
    return (
      <ButtonDropdown isOpen={this.state.dropdownOpen} toggle={this.toggle}>
        <DropdownToggle caret>
          Button Dropdown
        </DropdownToggle>
        <DropdownMenu>
          <DropdownItem header>Header</DropdownItem>
          <DropdownItem disabled>Action</DropdownItem>
          <DropdownItem>Another Action</DropdownItem>
          <DropdownItem divider />
          <DropdownItem>Another Action</DropdownItem>
        </DropdownMenu>
      </ButtonDropdown>
    );
  }
}

Properties

ButtonDropdown.propTypes = {
  disabled: PropTypes.bool,
  direction: PropTypes.oneOf(['up', 'down', 'left', 'right']),
  group: PropTypes.bool,
  isOpen: PropTypes.bool,
  tag: PropTypes.string,
  toggle: PropTypes.func
};
DropdownToggle.propTypes = {
  caret: PropTypes.bool,
  color: PropTypes.string,
  disabled: PropTypes.bool,
  onClick: PropTypes.func,
  'data-toggle': PropTypes.string,
  'aria-haspopup': PropTypes.bool
};

Single button dropdowns

<ButtonDropdown isOpen={isOpen} toggle={toggle}>
  <DropdownToggle caret color="primary">
    Text
  </DropdownToggle>
  <DropdownMenu>
    <DropdownItem header>Header</DropdownItem>
    <DropdownItem disabled>Action</DropdownItem>
    <DropdownItem>Another Action</DropdownItem>
    <DropdownItem divider/>
    <DropdownItem>Another Action</DropdownItem>
  </DropdownMenu>
</ButtonDropdown>

Split button dropdowns

<ButtonDropdown isOpen={isOpen} toggle={toggle}>
  <Button id="caret" color="primary">{this.props.text}</Button>
  <DropdownToggle caret color="primary" />
  <DropdownMenu>
    <DropdownItem header>Header</DropdownItem>
    <DropdownItem disabled>Action</DropdownItem>
    <DropdownItem>Another Action</DropdownItem>
    <DropdownItem divider/>
    <DropdownItem>Another Action</DropdownItem>
  </DropdownMenu>
</ButtonDropdown>

Sizing

<ButtonDropdown isOpen={isOpen} toggle={toggle}>
  <DropdownToggle caret size="lg">
    Large Button
  </DropdownToggle>
  <DropdownMenu>
    <DropdownItem>Another Action</DropdownItem>
    <DropdownItem>Another Action</DropdownItem>
  </DropdownMenu>
</ButtonDropdown>
<ButtonDropdown isOpen={isOpen} toggle={toggle}>
  <DropdownToggle caret size="sm">
    Small Button
  </DropdownToggle>
  <DropdownMenu>
    <DropdownItem>Another Action</DropdownItem>
    <DropdownItem>Another Action</DropdownItem>
  </DropdownMenu>
</ButtonDropdown>

Uncontrolled Dropdown

import React from 'react';
import { UncontrolledButtonDropdown, DropdownMenu, DropdownItem, DropdownToggle } from 'reactstrap';
export default function Example () => {
  return (
    <UncontrolledButtonDropdown>
      <DropdownToggle caret>
        Dropdown
      </DropdownToggle>
      <DropdownMenu>
        <DropdownItem header>Header</DropdownItem>
        <DropdownItem disabled>Action</DropdownItem>
        <DropdownItem>Another Action</DropdownItem>
        <DropdownItem divider />
        <DropdownItem>Another Action</DropdownItem>
      </DropdownMenu>
    </UncontrolledButtonDropdown>
  );
}

Drop direction variations

<ButtonDropdown direction="up" isOpen={isOpen} toggle={toggle}>
  <DropdownToggle caret>
    Dropup
  </DropdownToggle>
  <DropdownMenu>
    <DropdownItem>Another Action</DropdownItem>
    <DropdownItem>Another Action</DropdownItem>
  </DropdownMenu>
</ButtonDropdown>
<ButtonDropdown direction="left" isOpen={this.state.btnDropleft} toggle={() => { this.setState({ btnDropleft: !this.state.btnDropleft }); }}>
  <DropdownToggle caret>
    Dropleft
  </DropdownToggle>
  <DropdownMenu>
    <DropdownItem>Another Action</DropdownItem>
    <DropdownItem>Another Action</DropdownItem>
  </DropdownMenu>
</ButtonDropdown>
<ButtonDropdown direction="right" isOpen={this.state.btnDropright} toggle={() => { this.setState({ btnDropright: !this.state.btnDropright }); }}>
  <DropdownToggle caret>
    Dropright
  </DropdownToggle>
  <DropdownMenu>
    <DropdownItem>Another Action</DropdownItem>
    <DropdownItem>Another Action</DropdownItem>
  </DropdownMenu>
</ButtonDropdown>