Hi Vadim, May be I'm misunderstand something, but ChildOrder and Relational Expression are different things. As I told you before you can use ChildOrder for sorting your child database and Relation Expression to establish a relation. But there is another way. Just open Dataenvironment and setup all relation and ordering in Dataenvironment designer. And the last: I'm use standard Grid builder which is shipped with Vfp. But why aren't you use 1-to-many form Wizard? Yours ever, Vladimir Shevchenko > place for child order only on last tab you can set key field in parent > table and key field in child. > You maybe using different grid builder, my doesn't have Child Order option > ? > Thank you very much ....... >