The DataTable widget supports nested column headers, which can be defined in the columns definition using the `children` configuration.
Use nested columns to visually group related column headers. The `children` attribute associates a parent column to its descendants. Note that only bottom-level columns will have data values. Any parent columns are there for presentation purposes only and do not hold any data values directly — therefore parent columns may have a `label` value but a `key` value is unnecessary.
{{>need-skin-note}} ``` {{>datatable-nestedcols-source}} ```