Invalidate a single column only

guillochon

I can't quite get the syntax here correct, I'm trying:

table.cells(null, altitudeColumn).invalidate();

...but this isn't invalidating that column's values. A table.rows().invalidate() invalidates everything, but it's expensive. I tried also table.column( 'altitude' ).cells().invalidate() as well, but this is even slower than table.rows().invalidate(), which doesn't make sense given that we're only invalidating one row, rather than the whole table!

What's wrong with my current call?

guillochon

Any suggestion of what to try here? A full table invalidate takes a long time, and I'd like to avoid it.

guillochon

Also, I'd like to mention that while this forum thread states there is a columns().invalidate() method, that is not the case in the current version of DataTables. Is this just an oversight?

allan

table.column( 'altitude' ).cells().invalidate()

is actually the same as table.cells().invalidate(). The selectors are not additive.

table.cells(null, altitudeColumn).invalidate() should work. If it doesn't can you post a link to a test case showing the issue please.

Also, I'd like to mention that while this forum thread states there is a columns().invalidate() method

That thread is wrong, sorry. i'll correct it.

Allan