Add mDeselectColumns or fnDeselectCell

[waiting-for-dev]

Hi,

I'm trying to export the content of a table which first column cells have only a checkbox input. So, I would like to exclude that first column of exportation.

However, that's not that easy as mColumns: [1, 2], because from the rest of columns I only want the visible ones to get exported and, as far as I know, I can't use both mColumns string and array notation at the same time.

For my purpose I would need a mDeselectColumns to do something like that:

mColumns: 'visible',
mDeselectColumns: [0]

I think my situation may be quite common, because a lot of CRUD generator automatically create that kind of action columns, and if you want to add some other dynamism as column hiding I think right now you don't have a way to go.

Thanks a lot for this amazing plugin!

[DataTables]

This sounds like a good idea. We could end up with a case where someone has both enabled and disabled a column from export, but that would be a configuration error I'd say.

So yes, I'll look at including this in a future version of TableTOols. Perhaps v3 once DataTables 1.10 is done.

[waiting-for-dev]

Or maybe mDeselectColumns should have preference over the selection configuration ones...

Thank you!