If I wrap a SQLConnection in a Using, should I close it or does the end using handle it?
using cn as new system.data.sqlclient.sqlconnection()
cn.open
According to MSDN you don't need the close statement.
"The following example creates a SqlConnection, opens it, displays some of its properties. The connection is automatically closed at the end of the using block." -- http://msdn.microsoft.com/en-us/library/system.data.sqlclient.sqlconnection.close.aspx