rc-cascader

Basic Cascading Menu

This code sample demonstrates how to create a basic cascading menu with the rc-cascader package. The 'options' array defines the hierarchical structure of the menu, and the 'onChange' function logs the selected value.

import React from 'react';
import Cascader from 'rc-cascader';

const options = [
  {
    value: 'zhejiang',
    label: 'Zhejiang',
    children: [
      {
        value: 'hangzhou',
        label: 'Hangzhou',
        children: [
          {
            value: 'xihu',
            label: 'West Lake',
          },
        ],
      },
    ],
  },
  {
    value: 'jiangsu',
    label: 'Jiangsu',
    children: [
      {
        value: 'nanjing',
        label: 'Nanjing',
        children: [
          {
            value: 'zhonghuamen',
            label: 'Zhong Hua Men',
          },
        ],
      },
    ],
  },
];

function onChange(value) {
  console.log(value);
}

const App = () => (
  <Cascader options={options} onChange={onChange} />
);

export default App;

Custom Trigger

This code sample shows how to use a custom trigger, such as a button, to open the cascading menu. The children of the Cascader component determine the trigger element.

import React from 'react';
import Cascader from 'rc-cascader';

const options = [/* ... */];

const App = () => (
  <Cascader options={options}>
    <button>Click me to select</button>
  </Cascader>
);

export default App;

Search and Filter

This code sample illustrates how to enable a search and filter functionality within the cascading menu by setting the 'showSearch' prop to true. This allows users to quickly find options by typing.

import React from 'react';
import Cascader from 'rc-cascader';

const options = [/* ... */];

const App = () => (
  <Cascader options={options} showSearch />
);

export default App;