Basic
One Way
Search
Advanced
Custom datasource
Pagination
Table Transfer
Tree Transfer
Status
API

Transfer

Double column transfer choice box.

When To Use#

It is a select control essentially which can be use for selecting multiple items.
Transfer can display more information for items and take up more space.

Transfer the elements between two columns in an intuitive and efficient way.

One or more elements can be selected from either column, one click on the proper direction button, and the transfer is done. The left column is considered the source and the right column is considered the target. As you can see in the API description, these names are reflected in.

Examples

Basic

The most basic usage of Transfer involves providing the source data and target keys arrays, plus the rendering and some callback functions.

TypeScript
JavaScript
import { Transfer } from 'infrad';
import type { TransferDirection } from 'infrad/es/transfer';
import React, { useState } from 'react';

interface RecordType {
  key: string;
  title: string;
  description: string;
}

const mockData: RecordType[] = Array.from({ length: 20 }).map((_, i) => ({
  key: i.toString(),
  title: `content${i + 1}`,
  description: `description of content${i + 1}`,
}));

const initialTargetKeys = mockData.filter(item => Number(item.key) > 10).map(item => item.key);

const App: React.FC = () => {
  const [targetKeys, setTargetKeys] = useState(initialTargetKeys);
  const [selectedKeys, setSelectedKeys] = useState<string[]>([]);

  const onChange = (nextTargetKeys: string[], direction: TransferDirection, moveKeys: string[]) => {
    console.log('targetKeys:', nextTargetKeys);
    console.log('direction:', direction);
    console.log('moveKeys:', moveKeys);
    setTargetKeys(nextTargetKeys);
  };

  const onSelectChange = (sourceSelectedKeys: string[], targetSelectedKeys: string[]) => {
    console.log('sourceSelectedKeys:', sourceSelectedKeys);
    console.log('targetSelectedKeys:', targetSelectedKeys);
    setSelectedKeys([...sourceSelectedKeys, ...targetSelectedKeys]);
  };

  const onScroll = (direction: TransferDirection, e: React.SyntheticEvent<HTMLUListElement>) => {
    console.log('direction:', direction);
    console.log('target:', e.target);
  };

  return (
    <Transfer
      dataSource={mockData}
      titles={['Source', 'Target']}
      targetKeys={targetKeys}
      selectedKeys={selectedKeys}
      onChange={onChange}
      onSelectChange={onSelectChange}
      onScroll={onScroll}
      render={item => item.title}
    />
  );
};

export default App;

One Way

Use oneWay to makes Transfer to one way style.

TypeScript
JavaScript
import { Switch, Transfer } from 'infrad';
import type { TransferDirection } from 'infrad/es/transfer';
import React, { useState } from 'react';

interface RecordType {
  key: string;
  title: string;
  description: string;
  disabled: boolean;
}

const mockData: RecordType[] = Array.from({ length: 20 }).map((_, i) => ({
  key: i.toString(),
  title: `content${i + 1}`,
  description: `description of content${i + 1}`,
  disabled: i % 3 < 1,
}));

const oriTargetKeys = mockData.filter(item => Number(item.key) % 3 > 1).map(item => item.key);

const App: React.FC = () => {
  const [targetKeys, setTargetKeys] = useState<string[]>(oriTargetKeys);
  const [selectedKeys, setSelectedKeys] = useState<string[]>([]);
  const [disabled, setDisabled] = useState(false);

  const handleChange = (
    newTargetKeys: string[],
    direction: TransferDirection,
    moveKeys: string[],
  ) => {
    setTargetKeys(newTargetKeys);

    console.log('targetKeys: ', newTargetKeys);
    console.log('direction: ', direction);
    console.log('moveKeys: ', moveKeys);
  };

  const handleSelectChange = (sourceSelectedKeys: string[], targetSelectedKeys: string[]) => {
    setSelectedKeys([...sourceSelectedKeys, ...targetSelectedKeys]);

    console.log('sourceSelectedKeys: ', sourceSelectedKeys);
    console.log('targetSelectedKeys: ', targetSelectedKeys);
  };

  const handleScroll = (
    direction: TransferDirection,
    e: React.SyntheticEvent<HTMLUListElement, Event>,
  ) => {
    console.log('direction:', direction);
    console.log('target:', e.target);
  };

  const handleDisable = (checked: boolean) => {
    setDisabled(checked);
  };

  return (
    <>
      <Transfer
        dataSource={mockData}
        titles={['Source', 'Target']}
        targetKeys={targetKeys}
        selectedKeys={selectedKeys}
        onChange={handleChange}
        onSelectChange={handleSelectChange}
        onScroll={handleScroll}
        render={item => item.title}
        disabled={disabled}
        oneWay
        style={{ marginBottom: 16 }}
      />
      <Switch
        unCheckedChildren="disabled"
        checkedChildren="disabled"
        checked={disabled}
        onChange={handleDisable}
      />
    </>
  );
};

export default App;

0 item

No Data

0 item

No Data

Transfer with a search box.

TypeScript
JavaScript
import { Transfer } from 'infrad';
import type { TransferDirection } from 'infrad/es/transfer';
import React, { useEffect, useState } from 'react';

interface RecordType {
  key: string;
  title: string;
  description: string;
  chosen: boolean;
}

const App: React.FC = () => {
  const [mockData, setMockData] = useState<RecordType[]>([]);
  const [targetKeys, setTargetKeys] = useState<string[]>([]);

  const getMock = () => {
    const tempTargetKeys = [];
    const tempMockData = [];
    for (let i = 0; i < 20; i++) {
      const data = {
        key: i.toString(),
        title: `content${i + 1}`,
        description: `description of content${i + 1}`,
        chosen: Math.random() * 2 > 1,
      };
      if (data.chosen) {
        tempTargetKeys.push(data.key);
      }
      tempMockData.push(data);
    }
    setMockData(tempMockData);
    setTargetKeys(tempTargetKeys);
  };

  useEffect(() => {
    getMock();
  }, []);

  const filterOption = (inputValue: string, option: RecordType) =>
    option.description.indexOf(inputValue) > -1;

  const handleChange = (newTargetKeys: string[]) => {
    setTargetKeys(newTargetKeys);
  };

  const handleSearch = (dir: TransferDirection, value: string) => {
    console.log('search:', dir, value);
  };

  return (
    <Transfer
      dataSource={mockData}
      showSearch
      filterOption={filterOption}
      targetKeys={targetKeys}
      onChange={handleChange}
      onSearch={handleSearch}
      render={item => item.title}
    />
  );
};

export default App;

Advanced

Advanced Usage of Transfer.

You can customize the labels of the transfer buttons, the width and height of the columns, and what should be displayed in the footer.

TypeScript
JavaScript
import { Button, Transfer } from 'infrad';
import type { TransferDirection, TransferListProps } from 'infrad/es/transfer';
import React, { useEffect, useState } from 'react';

interface RecordType {
  key: string;
  title: string;
  description: string;
  chosen: boolean;
}

const App: React.FC = () => {
  const [mockData, setMockData] = useState<RecordType[]>([]);
  const [targetKeys, setTargetKeys] = useState<string[]>([]);

  const getMock = () => {
    const tempTargetKeys = [];
    const tempMockData = [];
    for (let i = 0; i < 20; i++) {
      const data = {
        key: i.toString(),
        title: `content${i + 1}`,
        description: `description of content${i + 1}`,
        chosen: Math.random() * 2 > 1,
      };
      if (data.chosen) {
        tempTargetKeys.push(data.key);
      }
      tempMockData.push(data);
    }
    setMockData(tempMockData);
    setTargetKeys(tempTargetKeys);
  };

  useEffect(() => {
    getMock();
  }, []);

  const handleChange = (newTargetKeys: string[]) => {
    setTargetKeys(newTargetKeys);
  };

  const renderFooter = (
    _: TransferListProps<any>,
    {
      direction,
    }: {
      direction: TransferDirection;
    },
  ) => {
    if (direction === 'left') {
      return (
        <Button size="small" style={{ float: 'left', margin: 5 }} onClick={getMock}>
          Left button reload
        </Button>
      );
    }
    return (
      <Button size="small" style={{ float: 'right', margin: 5 }} onClick={getMock}>
        Right button reload
      </Button>
    );
  };

  return (
    <Transfer
      dataSource={mockData}
      showSearch
      listStyle={{
        width: 250,
        height: 300,
      }}
      operations={['to right', 'to left']}
      targetKeys={targetKeys}
      onChange={handleChange}
      render={item => `${item.title}-${item.description}`}
      footer={renderFooter}
    />
  );
};

export default App;

0 item

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Custom datasource

Custom each Transfer Item, and in this way you can render a complex datasource.

TypeScript
JavaScript
import { Transfer } from 'infrad';
import type { TransferDirection } from 'infrad/es/transfer';
import React, { useEffect, useState } from 'react';

interface RecordType {
  key: string;
  title: string;
  description: string;
  chosen: boolean;
}

const App: React.FC = () => {
  const [mockData, setMockData] = useState<RecordType[]>([]);
  const [targetKeys, setTargetKeys] = useState<string[]>([]);

  const getMock = () => {
    const tempTargetKeys = [];
    const tempMockData = [];
    for (let i = 0; i < 20; i++) {
      const data = {
        key: i.toString(),
        title: `content${i + 1}`,
        description: `description of content${i + 1}`,
        chosen: Math.random() * 2 > 1,
      };
      if (data.chosen) {
        tempTargetKeys.push(data.key);
      }
      tempMockData.push(data);
    }
    setMockData(tempMockData);
    setTargetKeys(tempTargetKeys);
  };

  useEffect(() => {
    getMock();
  }, []);

  const handleChange = (
    newTargetKeys: string[],
    direction: TransferDirection,
    moveKeys: string[],
  ) => {
    console.log(newTargetKeys, direction, moveKeys);
    setTargetKeys(newTargetKeys);
  };

  const renderItem = (item: RecordType) => {
    const customLabel = (
      <span className="custom-item">
        {item.title} - {item.description}
      </span>
    );

    return {
      label: customLabel, // for displayed item
      value: item.title, // for title and filter matching
    };
  };

  return (
    <Transfer
      dataSource={mockData}
      listStyle={{
        width: 300,
        height: 300,
      }}
      targetKeys={targetKeys}
      onChange={handleChange}
      render={renderItem}
    />
  );
};

export default App;

0 item

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0 item

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Pagination

large count of items with pagination.

TypeScript
JavaScript
import { Switch, Transfer } from 'infrad';
import type { TransferDirection } from 'infrad/es/transfer';
import React, { useEffect, useState } from 'react';

interface RecordType {
  key: string;
  title: string;
  description: string;
  chosen: boolean;
}

const App: React.FC = () => {
  const [oneWay, setOneWay] = useState(false);
  const [mockData, setMockData] = useState<RecordType[]>([]);
  const [targetKeys, setTargetKeys] = useState<string[]>([]);

  useEffect(() => {
    const newTargetKeys = [];
    const newMockData = [];
    for (let i = 0; i < 2000; i++) {
      const data = {
        key: i.toString(),
        title: `content${i + 1}`,
        description: `description of content${i + 1}`,
        chosen: Math.random() * 2 > 1,
      };
      if (data.chosen) {
        newTargetKeys.push(data.key);
      }
      newMockData.push(data);
    }

    setTargetKeys(newTargetKeys);
    setMockData(newMockData);
  }, []);

  const onChange = (newTargetKeys: string[], direction: TransferDirection, moveKeys: string[]) => {
    console.log(newTargetKeys, direction, moveKeys);
    setTargetKeys(newTargetKeys);
  };

  return (
    <>
      <Transfer
        dataSource={mockData}
        targetKeys={targetKeys}
        onChange={onChange}
        render={item => item.title}
        oneWay={oneWay}
        pagination
      />
      <br />
      <Switch
        unCheckedChildren="one way"
        checkedChildren="one way"
        checked={oneWay}
        onChange={setOneWay}
      />
    </>
  );
};

export default App;

14 items

Name	Tag	Description
content1	cat	description of content1
content2	dog	description of content2
content4	cat	description of content4
content5	dog	description of content5
content7	cat	description of content7
content8	dog	description of content8
content10	cat	description of content10
content11	dog	description of content11
content13	cat	description of content13
content14	dog	description of content14

	Name
	content3
	content6
	content9
	content12
	content15
	content18

Table Transfer

Customize render list with Table component.

TypeScript
JavaScript
import { Switch, Table, Tag, Transfer } from 'infrad';
import type { ColumnsType, TableRowSelection } from 'infrad/es/table/interface';
import type { TransferItem, TransferProps } from 'infrad/es/transfer';
import difference from 'lodash/difference';
import React, { useState } from 'react';

interface RecordType {
  key: string;
  title: string;
  description: string;
  disabled: boolean;
  tag: string;
}

interface DataType {
  title: string;
  tag: string;
  description: string;
}

interface TableTransferProps extends TransferProps<TransferItem> {
  dataSource: DataType[];
  leftColumns: ColumnsType<DataType>;
  rightColumns: ColumnsType<DataType>;
}

// Customize Table Transfer
const TableTransfer = ({ leftColumns, rightColumns, ...restProps }: TableTransferProps) => (
  <Transfer {...restProps}>
    {({
      direction,
      filteredItems,
      onItemSelectAll,
      onItemSelect,
      selectedKeys: listSelectedKeys,
      disabled: listDisabled,
    }) => {
      const columns = direction === 'left' ? leftColumns : rightColumns;

      const rowSelection: TableRowSelection<TransferItem> = {
        getCheckboxProps: item => ({ disabled: listDisabled || item.disabled }),
        onSelectAll(selected, selectedRows) {
          const treeSelectedKeys = selectedRows
            .filter(item => !item.disabled)
            .map(({ key }) => key);
          const diffKeys = selected
            ? difference(treeSelectedKeys, listSelectedKeys)
            : difference(listSelectedKeys, treeSelectedKeys);
          onItemSelectAll(diffKeys as string[], selected);
        },
        onSelect({ key }, selected) {
          onItemSelect(key as string, selected);
        },
        selectedRowKeys: listSelectedKeys,
      };

      return (
        <Table
          rowSelection={rowSelection}
          columns={columns}
          dataSource={filteredItems}
          size="small"
          style={{ pointerEvents: listDisabled ? 'none' : undefined }}
          onRow={({ key, disabled: itemDisabled }) => ({
            onClick: () => {
              if (itemDisabled || listDisabled) return;
              onItemSelect(key as string, !listSelectedKeys.includes(key as string));
            },
          })}
        />
      );
    }}
  </Transfer>
);

const mockTags = ['cat', 'dog', 'bird'];

const mockData: RecordType[] = Array.from({ length: 20 }).map((_, i) => ({
  key: i.toString(),
  title: `content${i + 1}`,
  description: `description of content${i + 1}`,
  disabled: i % 4 === 0,
  tag: mockTags[i % 3],
}));

const originTargetKeys = mockData.filter(item => Number(item.key) % 3 > 1).map(item => item.key);

const leftTableColumns: ColumnsType<DataType> = [
  {
    dataIndex: 'title',
    title: 'Name',
  },
  {
    dataIndex: 'tag',
    title: 'Tag',
    render: tag => <Tag>{tag}</Tag>,
  },
  {
    dataIndex: 'description',
    title: 'Description',
  },
];

const rightTableColumns: ColumnsType<Pick<DataType, 'title'>> = [
  {
    dataIndex: 'title',
    title: 'Name',
  },
];

const App: React.FC = () => {
  const [targetKeys, setTargetKeys] = useState<string[]>(originTargetKeys);
  const [disabled, setDisabled] = useState(false);
  const [showSearch, setShowSearch] = useState(false);

  const onChange = (nextTargetKeys: string[]) => {
    setTargetKeys(nextTargetKeys);
  };

  const triggerDisable = (checked: boolean) => {
    setDisabled(checked);
  };

  const triggerShowSearch = (checked: boolean) => {
    setShowSearch(checked);
  };

  return (
    <>
      <TableTransfer
        dataSource={mockData}
        targetKeys={targetKeys}
        disabled={disabled}
        showSearch={showSearch}
        onChange={onChange}
        filterOption={(inputValue, item) =>
          item.title!.indexOf(inputValue) !== -1 || item.tag.indexOf(inputValue) !== -1
        }
        leftColumns={leftTableColumns}
        rightColumns={rightTableColumns}
      />
      <Switch
        unCheckedChildren="disabled"
        checkedChildren="disabled"
        checked={disabled}
        onChange={triggerDisable}
        style={{ marginTop: 16 }}
      />
      <Switch
        unCheckedChildren="showSearch"
        checkedChildren="showSearch"
        checked={showSearch}
        onChange={triggerShowSearch}
        style={{ marginTop: 16 }}
      />
    </>
  );
};

export default App;
#components-transfer-demo-table-transfer .ant-table td {
  background: transparent;
}

5 items

0-0

0-1

0-1-0

0-1-1

0-3

0 item

No Data

Tree Transfer

Customize render list with Tree component.

TypeScript
JavaScript
import { Transfer, Tree } from 'infrad';
import type { TransferDirection, TransferItem } from 'infrad/es/transfer';
import type { DataNode } from 'infrad/es/tree';
import React, { useState } from 'react';

interface TreeTransferProps {
  dataSource: DataNode[];
  targetKeys: string[];
  onChange: (targetKeys: string[], direction: TransferDirection, moveKeys: string[]) => void;
}

// Customize Table Transfer
const isChecked = (selectedKeys: (string | number)[], eventKey: string | number) =>
  selectedKeys.includes(eventKey);

const generateTree = (treeNodes: DataNode[] = [], checkedKeys: string[] = []): DataNode[] =>
  treeNodes.map(({ children, ...props }) => ({
    ...props,
    disabled: checkedKeys.includes(props.key as string),
    children: generateTree(children, checkedKeys),
  }));

const TreeTransfer = ({ dataSource, targetKeys, ...restProps }: TreeTransferProps) => {
  const transferDataSource: TransferItem[] = [];
  function flatten(list: DataNode[] = []) {
    list.forEach(item => {
      transferDataSource.push(item as TransferItem);
      flatten(item.children);
    });
  }
  flatten(dataSource);

  return (
    <Transfer
      {...restProps}
      targetKeys={targetKeys}
      dataSource={transferDataSource}
      className="tree-transfer"
      render={item => item.title!}
      showSelectAll={false}
    >
      {({ direction, onItemSelect, selectedKeys }) => {
        if (direction === 'left') {
          const checkedKeys = [...selectedKeys, ...targetKeys];
          return (
            <Tree
              blockNode
              checkable
              checkStrictly
              defaultExpandAll
              checkedKeys={checkedKeys}
              treeData={generateTree(dataSource, targetKeys)}
              onCheck={(_, { node: { key } }) => {
                onItemSelect(key as string, !isChecked(checkedKeys, key));
              }}
              onSelect={(_, { node: { key } }) => {
                onItemSelect(key as string, !isChecked(checkedKeys, key));
              }}
            />
          );
        }
      }}
    </Transfer>
  );
};

const treeData: DataNode[] = [
  { key: '0-0', title: '0-0' },
  {
    key: '0-1',
    title: '0-1',
    children: [
      { key: '0-1-0', title: '0-1-0' },
      { key: '0-1-1', title: '0-1-1' },
    ],
  },
  { key: '0-2', title: '0-3' },
];

const App: React.FC = () => {
  const [targetKeys, setTargetKeys] = useState<string[]>([]);
  const onChange = (keys: string[]) => {
    setTargetKeys(keys);
  };
  return <TreeTransfer dataSource={treeData} targetKeys={targetKeys} onChange={onChange} />;
};

export default App;

0 item

No Data

0 item

No Data

0 item

No Data

0 item

No Data

Status

Add status to Transfer with status, which could be error or warning.

TypeScript
JavaScript
import { Space, Transfer } from 'infrad';
import React from 'react';

const App: React.FC = () => (
  <Space direction="vertical">
    <Transfer status="error" />
    <Transfer status="warning" showSearch />
  </Space>
);

export default App;

4.19.0

API#

Property	Description	Type	Default	Version
dataSource	Used for setting the source data. The elements that are part of this array will be present the left column. Except the elements whose keys are included in `targetKeys` prop	RecordType extends TransferItem = TransferItem[]	[]
disabled	Whether disabled transfer	boolean	false
filterOption	A function to determine whether an item should show in search result list	(inputValue, option): boolean	-
footer	A function used for rendering the footer	(props, { direction }) => ReactNode	-	direction: 4.17.0
listStyle	A custom CSS style used for rendering the transfer columns	object \| ({direction: `left` \| `right`}) => object	-
locale	The i18n text including filter, empty text, item unit, etc	{ itemUnit: string; itemsUnit: string; searchPlaceholder: string; notFoundContent: ReactNode \| ReactNode[]; }	{ itemUnit: `item`, itemsUnit: `items`, notFoundContent: `The list is empty`, searchPlaceholder: `Search here` }
oneWay	Display as single direction style	boolean	false	4.3.0
operations	A set of operations that are sorted from top to bottom	string[]	[`>`, `<`]
operationStyle	A custom CSS style used for rendering the operations column	object	-
pagination	Use pagination. Not work in render props	boolean \| { pageSize: number, simple: boolean, showSizeChanger?: boolean, showLessItems?: boolean }	false	4.3.0
render	The function to generate the item shown on a column. Based on an record (element of the dataSource array), this function should return a React element which is generated from that record. Also, it can return a plain object with `value` and `label`, `label` is a React element and `value` is for title	(record) => ReactNode	-
selectAllLabels	A set of customized labels for select all checkboxs on the header	(ReactNode \| (info: { selectedCount: number, totalCount: number }) => ReactNode)[]	-
selectedKeys	A set of keys of selected items	string[]	[]
showSearch	If included, a search box is shown on each column	boolean	false
showSelectAll	Show select all checkbox on the header	boolean	true
status	Set validation status	'error' \| 'warning'	-	4.19.0
targetKeys	A set of keys of elements that are listed on the right column	string[]	[]
titles	A set of titles that are sorted from left to right	ReactNode[]	-
onChange	A callback function that is executed when the transfer between columns is complete	(targetKeys, direction, moveKeys): void	-
onScroll	A callback function which is executed when scroll options list	(direction, event): void	-
onSearch	A callback function which is executed when search field are changed	(direction: `left` \| `right`, value: string): void	-
onSelectChange	A callback function which is executed when selected items are changed	(sourceSelectedKeys, targetSelectedKeys): void	-

Render Props#

Transfer accept children to customize render list, using follow props:

Property	Description	Type
direction	List render direction	`left` \| `right`
disabled	Disable list or not	boolean
filteredItems	Filtered items	RecordType[]
selectedKeys	Selected items	string[]
onItemSelect	Select item	(key: string, selected: boolean)
onItemSelectAll	Select a group of items	(keys: string[], selected: boolean)

example#

<Transfer {...props}>{listProps => <YourComponent {...listProps} />}</Transfer>

Warning#

According the standard of React, the key should always be supplied directly to the elements in the array. In Transfer, the keys should be set on the elements included in dataSource array. By default, key property is used as an unique identifier.

If there's no key in your data, you should use rowKey to specify the key that will be used for uniquely identify each element.

// eg. your primary key is `uid`
return <Transfer rowKey={record => record.uid} />;

FAQ#

How to support fetch and present data from a remote server in Transfer column.#

In order to keep the page number synchronized, you can disable columns you checked without removing the option: https://codesandbox.io/s/objective-wing-6iqbx