Connection Error

Hi all
When i try to access sqlserver from a custom developed assembnly i get the
following error
"
Request for the permission of type
System.Data.SqlClient.SqlClientPermission, System.Data, Version=1.0.5000.0,
Culture=neutral, PublicKeyToken=b77a5c561934e089 failed.
"
can any one please suggest me how to go about this
Thanks
Srujan.NDid you configure a Code Access Security group for your assembly?
Search the newsgroup and you'll find several posts on custom assembly
and Code Access Security.
Andy Potter