My goal was to put a css class on a column of a table so to make a link appear as a button.
First you put a class in the column:
This will it make appear like this:
To remove the button from the header of the column you have to add JavaScript on the page:
TB.render('component_3', function(data) { $("th.btn-primary").removeClass("btn-primary"); });
and the css-class will be removed from the header (th) of this column:
Thanks @Lee for explaining this. I hope it will help others as well.