Hi Peter.
That does not always work, at least not with async sources. Sometimes I end up with sourceA rows (from page 1) instead of sourceB rows. I guess async=false will solve it but then dropdownlist freezes while data is loading.
And you end up with an extra server fetch (page 1 on sourceA before sourceB). That’s not a big deal but I don’t like it.
Best regards,
Oyvind Eriksen