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.
| 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](https://github.com/ant-design/ant-design/blob/1bf0bab2a7bc0a774119f501806e3e0e3a6ba283/components/transfer/index.tsx#L12)\[] | \[] | |
| 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)\[] | - | |
According the [standard](http://facebook.github.io/react/docs/lists-and-keys.html#keys) 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.
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>