Disable Export Button if no Rows Selected

wallabe123

I am using the button and bootstrap plugins to add a CSV export button to my table. It currently uses the 'selected: true' configuration in the button's modifier initialization. I only want it to export the rows that are selected by the user (which is currently does fine). Is there anyway to automatically disable/enable the button based on whether any rows are selected, similar to how a button behaves when it extends 'selected'.
Alternatively, is there a setting so that if no rows are selected it will export the whole table instead of an empty csv file?

rf1234

use the "select" and "deselect" event handlers and then
https://datatables.net/reference/api/button().disable()
"button().disable()" or "enable()"

If you want to export the whole table if nothing is selected use exportOptions with this modifier:

....
exportOptions: {
    modifier: { selected: null }, //make sure all records show up
...

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