Search for all rows having an empty cell

okp

Hi there,

i'm struggling to find a solution with latest version of DT.

I've a large table with rows that might contain empty values.
When these cellsare empty, they already have a css class applied on (<td class="empty">) , as well as the row (<tr class="hasEmpty">).
These empty cells can be in any column (except the first which always contains a value - not sure if relevant)

Then i'd like to have a button outside the table to show all rows that contain at least one cell which is empty.

Is there a way do to this?
Based on the empty value as a regExp ? ( '^$' ) Or maybe the <tr> class which is already applied ?

myTable.columns().search('^$').draw() will return no result.
(nor myTable.columns().search('something').draw() , although there is "something" in some cells, not sure why...)

Thanks for your help !