Hi Borislav.

>I build a DE class with several CA in it. The DE is based on ADO DataSourceType. All ca is based on DE DataSource.

You can't do that -- if you're using ADO, you have to set CursorAdapter.UseDEDataSource to .F. and manage the DataSource property of each CA. The reason is because each CA's cursor comes from a unique RecordSet, but you've only provided one RecordSet (the one in the DE DataSource property), so you only get a cursor for the first CA.

Doug