Add support for table with two headers #3263
Description
- I have searched the issues of this repository and believe that this is not a duplicate.
What problem does this feature solve?
In my usecase I needed a table with grouped header, not only at the top of the table, but at the left side of it.
I've managed to do it by adding extra columns, setting colspan/rowspan with customRender and hiding external cells with display: none. Also I had to use the groupedColumns method from ColumnManager, duplicating the code.
That's all looks like a hack after a hack, and I didn't find anything helpful for that case in the docs.
What does the proposed API look like?
I guess, the syntax should be similiar to columns prop, since the expected behavior is very similar.
The other way, there should be a method to remove some th/td from the table completely (not through styles).
For example, with customRender returns false or null.