Multiple Report using a single DataEnvironment

Hello everybody,

Im trying to make an application that can produce diiferent
reports. Is it possible to produce different reports (filtering/grouping) using a single data environment. Here are the problems I've encountered.

1.After successfully using the SQL statement for the DataEnvironment- "Select * from <tablename>" (behind a command object), I've tried changing that SQL statement to filter some data using another Command object. But when I tried showing the report, it appears that it is pointing to its last SQL statement.


2.I've tried using Combobox text values to replace criteria values on the SQL statement of the DataEnvvironment.Commands to do this. But when i tried to show the report, it gives an error message of "No values found on the required parameters".
Thanx,
cyberjeff21 :)