DataGrid - Row resize

Row resize and row index column

The <ReactDataGrid /> can show arowIndexColumn similar to the index column in Excel & Excel-like apps - this column can be used for resizing rows via d&d, but also for restoring the default row height, by double-clicking the resize indicator.

Customizing the column

The column can be easily customized, as you can do with other special columns like checkboxColumn.
Additionally and most importantly, you can specify a custom render function for the row index, using rowIndexColumn.renderIndex(index) prop - see the demo below for an example.
The default implementation of rowIndexColumn.renderIndex(index) is to render index+1.