default-custom-size-per-page-dropdown.jsx

 class CustomSizePerPageDropDown extends React.Component {
  constructor(props) {
    super(props);
  }

  onToggleDropDown = (toggleDropDown) => {
    // do your stuff here
    console.log('toggle dropdown');
    toggleDropDown();
  }

  renderSizePerPageDropDown = (props) => {
    return (
      <SizePerPageDropDown
        className='my-size-per-page'
        btnContextual='btn-warning'
        variation='dropup'
        onClick={ () => this.onToggleDropDown(props.toggleDropDown) }/>
    );
  }

  render() {
    const options = {
      sizePerPageDropDown: this.renderSizePerPageDropDown
    };
    return (
      <div>
        <BootstrapTable
          data={ products }
          options={ options }
          pagination>
          <TableHeaderColumn dataField='id' isKey={ true }>Product ID</TableHeaderColumn>
          <TableHeaderColumn dataField='name'>Product Name</TableHeaderColumn>
          <TableHeaderColumn dataField='price'>Product Price</TableHeaderColumn>
        </BootstrapTable>
      </div>
    );
  }
}