change childband on the fly

norldir

Hi,
I need to change the childBand depending on a condition gived by:

i tried on event onBeforePrint of my band that code:

if query.eof then
band.childband := child1
else
band.childband := child2


but it does not recognize "query.eof"

how can i do this?


thanks for all


I using FR253 with D7