TreeSelect树选择

树型选择控件。

何时使用#

类似 Select 的选择控件,可选择的数据结构是一个树形结构时,可以使用 TreeSelect,例如公司层级、学科系统、分类目录等等。

代码演示

Please select

最简单的用法。

expand codeexpand code
import { TreeSelect } from 'antd';
const TreeNode = TreeSelect.TreeNode;

class Demo extends React.Component {
  state = {
    value: undefined,
  }
  onChange = (value) => {
    console.log(arguments);
    this.setState({ value });
  }
  render() {
    return (
      <TreeSelect
        showSearch
        style={{ width: 300 }}
        value={this.state.value}
        dropdownStyle={{ maxHeight: 400, overflow: 'auto' }}
        placeholder="Please select"
        allowClear
        treeDefaultExpandAll
        onChange={this.onChange}
      >
        <TreeNode value="parent 1" title="parent 1" key="0-1">
          <TreeNode value="parent 1-0" title="parent 1-0" key="0-1-1">
            <TreeNode value="leaf1" title="my leaf" key="random" />
            <TreeNode value="leaf2" title="your leaf" key="random1" />
          </TreeNode>
          <TreeNode value="parent 1-1" title="parent 1-1" key="random2">
            <TreeNode value="sss" title={<b style={{ color: '#08c' }}>sss</b>} key="random3" />
          </TreeNode>
        </TreeNode>
      </TreeSelect>
    );
  }
}

ReactDOM.render(<Demo />, mountNode);
Please select

使用 treeData 把 JSON 数据直接生成树结构。

expand codeexpand code
import { TreeSelect } from 'antd';

const treeData = [{
  label: 'Node1',
  value: '0-0',
  key: '0-0',
  children: [{
    label: 'Child Node1',
    value: '0-0-1',
    key: '0-0-1',
  }, {
    label: 'Child Node2',
    value: '0-0-2',
    key: '0-0-2',
  }],
}, {
  label: 'Node2',
  value: '0-1',
  key: '0-1',
}];

class Demo extends React.Component {
  state = {
    value: undefined,
  }
  onChange = (value) => {
    console.log(arguments);
    this.setState({ value });
  }
  render() {
    return (
      <TreeSelect
        style={{ width: 300 }}
        value={this.state.value}
        dropdownStyle={{ maxHeight: 400, overflow: 'auto' }}
        treeData={treeData}
        placeholder="Please select"
        treeDefaultExpandAll
        onChange={this.onChange}
      />
    );
  }
}

ReactDOM.render(<Demo />, mountNode);
Please select

多选的树选择。

expand codeexpand code
import { TreeSelect } from 'antd';
const TreeNode = TreeSelect.TreeNode;

class Demo extends React.Component {
  state = {
    value: undefined,
  }
  onChange = (value) => {
    console.log(arguments);
    this.setState({ value });
  }
  render() {
    return (
      <TreeSelect
        showSearch
        style={{ width: 300 }}
        value={this.state.value}
        dropdownStyle={{ maxHeight: 400, overflow: 'auto' }}
        placeholder="Please select"
        allowClear
        multiple
        treeDefaultExpandAll
        onChange={this.onChange}
      >
        <TreeNode value="parent 1" title="parent 1" key="0-1">
          <TreeNode value="parent 1-0" title="parent 1-0" key="0-1-1">
            <TreeNode value="leaf1" title="my leaf" key="random" />
            <TreeNode value="leaf2" title="your leaf" key="random1" />
          </TreeNode>
          <TreeNode value="parent 1-1" title="parent 1-1" key="random2">
            <TreeNode value="sss" title={<b style={{ color: '#08c' }}>sss</b>} key="random3" />
          </TreeNode>
        </TreeNode>
      </TreeSelect>
    );
  }
}

ReactDOM.render(<Demo />, mountNode);
  • Node1

使用勾选框实现多选功能。

expand codeexpand code
import { TreeSelect } from 'antd';
const SHOW_PARENT = TreeSelect.SHOW_PARENT;

const treeData = [{
  label: 'Node1',
  value: '0-0',
  key: '0-0',
  children: [{
    label: 'Child Node1',
    value: '0-0-0',
    key: '0-0-0',
  }],
}, {
  label: 'Node2',
  value: '0-1',
  key: '0-1',
  children: [{
    label: 'Child Node3',
    value: '0-1-0',
    key: '0-1-0',
  }, {
    label: 'Child Node4',
    value: '0-1-1',
    key: '0-1-1',
  }, {
    label: 'Child Node5',
    value: '0-1-2',
    key: '0-1-2',
  }],
}];

class Demo extends React.Component {
  state = {
    value: ['0-0-0'],
  }
  onChange = (value) => {
    console.log('onChange ', value, arguments);
    this.setState({ value });
  }
  render() {
    const tProps = {
      treeData,
      value: this.state.value,
      onChange: this.onChange,
      treeCheckable: true,
      showCheckedStrategy: SHOW_PARENT,
      searchPlaceholder: 'Please select',
      style: {
        width: 300,
      },
    };
    return <TreeSelect {...tProps} />;
  }
}

ReactDOM.render(<Demo />, mountNode);

API#

Tree props#

参数说明类型默认值
allowClear显示清除按钮booleanfalse
defaultValue指定默认选中的条目string/string[]-
disabled是否禁用booleanfalse
dropdownMatchSelectWidth下拉菜单和选择器同宽booleantrue
dropdownStyle下拉菜单的样式object-
filterTreeNode是否根据输入项进行筛选,默认用 treeNodeFilterProp 的值作为要筛选的 TreeNode 的属性值boolean|Function(inputValue: string, treeNode: TreeNode) (函数需要返回bool值)Function
getPopupContainer菜单渲染父节点。默认渲染到 body 上,如果你遇到菜单滚动定位问题,试试修改为滚动的区域,并相对其定位。示例Function(triggerNode)() => document.body
labelInValue是否把每个选项的 label 包装到 value 中,会把 value 类型从 string 变为 {key: string, label: ReactNode, halfChecked(treeCheckStrictly 时有效): string[] } 的格式booleanfalse
loadData异步加载数据function(node)-
multiple支持多选(当设置 treeCheckable 时自动变为true)booleanfalse
placeholder选择框默认文字string-
searchPlaceholder搜索框默认文字string-
showCheckedStrategy定义选中项回填的方式。TreeSelect.SHOW_ALL: 显示所有选中节点(包括父节点). TreeSelect.SHOW_PARENT: 只显示父节点(当父节点下所有子节点都选中时). 默认只显示子节点.enum{TreeSelect.SHOW_ALL, TreeSelect.SHOW_PARENT, TreeSelect.SHOW_CHILD }TreeSelect.SHOW_CHILD
showSearch在下拉中显示搜索框(仅在单选模式下生效)booleanfalse
size选择框大小,可选 large smallstring'default'
treeCheckable显示 checkboxbooleanfalse
treeCheckStrictlycheckable 状态下节点选择完全受控(父子节点选中状态不再关联),会使得 labelInValue 强制为 truebooleanfalse
treeDatatreeNodes 数据,如果设置则不需要手动构造 TreeNode 节点(value 在整个树范围内唯一)array<{value, label, children, disabled, disableCheckbox, selectable}>[]
treeDataSimpleMode使用简单格式的 treeData,具体设置参考可设置的类型 (此时 treeData 应变为这样的数据结构: {id:1, pId:0, value:'1', label:"test1",...},..., pId 是父节点的 id)false|Array<{ id: string, pId: string, rootPId: null }>false
treeDefaultExpandAll默认展开所有树节点booleanfalse
treeDefaultExpandedKeys默认展开的树节点string[]-
treeNodeFilterProp输入项过滤对应的 treeNode 属性string'value'
treeNodeLabelProp作为显示的 prop 设置string'title'
value指定当前选中的条目string/string[]-
onChange选中树节点时调用此函数function(value, label, extra)-
onSearch文本框值变化时回调function(value: string)-
onSelect被选中时调用function(value, node, extra)-

TreeNode props#

建议使用 treeData 来代替 TreeNode,免去手工构造麻烦

参数说明类型默认值
disableCheckbox禁掉 checkboxbooleanfalse
disabled是否禁用booleanfalse
isLeaf是否是叶子节点booleanfalse
key此项必须设置(其值在整个树范围内唯一)string-
title树节点显示的内容string|ReactNode'---'
value默认根据此属性值进行筛选(其值在整个树范围内唯一)string-