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rc-tree

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rc-tree

tree ui component for react


Version published
Weekly downloads
1.5M
increased by6.49%
Maintainers
11
Weekly downloads
 
Created

What is rc-tree?

The rc-tree npm package is a React component for displaying tree views. It provides flexible and efficient tree components with customizable nodes, drag-and-drop functionality, checkable nodes, and event handling for various actions like select, check, load data asynchronously, and more. It's suitable for implementing features like file systems, nested menus, or any hierarchical data representation.

What are rc-tree's main functionalities?

Basic Tree Structure

This feature allows the creation of a basic tree structure with nested nodes. The `treeData` prop defines the hierarchical structure of the tree.

import Tree from 'rc-tree';

const treeData = [{
  title: 'parent 1',
  key: '0-0',
  children: [{
    title: 'child 1-1',
    key: '0-0-1',
    children: [{
      title: 'leaf',
      key: '0-0-1-1'
    }]
  }, {
    title: 'child 1-2',
    key: '0-0-2',
    children: [{
      title: 'leaf',
      key: '0-0-2-1'
    }]
  }]
}];

<Tree treeData={treeData} />

Drag-and-Drop

Enables drag-and-drop functionality within the tree, allowing users to reorder nodes by dragging them. Event handlers like `onDragEnter` and `onDrop` can be used to manage the drag-and-drop process.

import Tree from 'rc-tree';

<Tree
  treeData={treeData}
  draggable
  onDragEnter={info => console.log('enter:', info)}
  onDrop={info => console.log('drop:', info)}
/>

Checkable Nodes

This feature adds checkboxes to tree nodes, making them selectable. The `onCheck` event handler is triggered when checkboxes are checked or unchecked, allowing for custom handling of these events.

import Tree from 'rc-tree';

<Tree
  checkable
  onCheck={checkedKeys => console.log('onCheck', checkedKeys)}
  treeData={treeData}
/>

Async Data Loading

Supports loading data asynchronously for nodes. This is useful for loading child nodes on demand, for example, when a node is expanded. The `loadData` function is called to fetch child nodes asynchronously.

import Tree from 'rc-tree';

const loadData = treeNode =>
  new Promise(resolve => {
    setTimeout(() => {
      resolve();
    }, 1000);
  });

<Tree loadData={loadData} treeData={treeData} />

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Package last updated on 14 Oct 2024

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