hello my friend, I a new in forum.

I have question, I dont solve it.
I have DataEnvironment1.
Previosly, I manually made it from IDE. but I dont want it.
I try to take a database from external source,
and according to the source I work with DataEnvironment1 connection, and make other process. But catch error.
Also, I think that,my error came from connectionstring.

plesea, give me any example,
Dataenvrionment1.connection and Command.

if I establish it, I change my data...