How to determine number of rows in a table

alextang

I have searched many places, but were unable to find a solution. I wanted to have a way to find out the number of table rows after a Ajax call.

I see the followings in some posts

oTable.fnSettings().fnRecordsTotal()
oTable.fnGetData().length

but, they did not seem to work. Not sure if they are obsolete or not (i.e Hungarian notation).

If I have

var table = $(#example).dataTable();

alert(table.fnGetData().length) does not seem to work. I am using the datatables 1.10.1.

Thanks,
Alex

Rpiechura

Those are old calls, that doesn't mean they're obsolete, just that you have to use the new syntax if that's what you are using elsewhere. Gotta be consistent on the syntax you're using otherwise things wont work properly.

I think what you're looking for is

oTable.page.info().length

found at http://datatables.net/reference/api/page.info()

alextang

Rpiechura, this does not work for me as I used Ajax. I wanted to get the row number after the Ajax. Ideally, some type of event when Ajax is done.

alextang

Not sure if this is the best approach. But, it works

$("#install-finished-datatable").dataTable({

}).on('draw.dt', function ( e, settings, json ) {
$('#badge-finished').html($('#install-finished-datatable tbody tr').length);
});

alextang

find the answer,

page.info().recordsTotal

is the correct way.