colvis, set a maximum

Nico1904

Hi everybody,
I'm working with datatable colvis and I have some trouble with this button.

What I would like to do :
Allow user to set visibility of a limited number of column inside a larger set.

For example:
the table have 8 columns and only column 1 to 4 are visible
User can click on a button in order to set visibility of columns
but if he set 5 columns visible, then he can't set another one visible, because 5 is a maximum (the limit I want to add)

Is it possible ? And if it's possible, can we change color of columns buttons in order to show that they are disabled ?

Thank you,
Sorry for my english.

rf1234

This is how you count the visible columns:

var visibleCount = yourTable.columns(':visible').count();

Then you can use this event to count and check etc
https://datatables.net/reference/event/column-visibility

Nico1904

Yes I knew about that but how to disable buttons in order to prevent user to add another column ?

rf1234

All you would need to do is to use the search field in the upper right corner...

https://datatables.net/reference/api/buttons().disable()

Nico1904

Oops, sorry.
Thank you for your time !