The tips in the help file for globally changing the Command Timeout were very useful and easy to do because there is a CommandTimeout property on the dao class. Is there a way to globally change the isolation level of SQL Server too? The default isolation level for SQL Server is READ COMMITTED. I would like to globally change that level so that there is not so much SQL locking in my application.

Hint: SQL help says that there are two common ways to set the isolation level.
1. Run the SET TRANSACTION ISOLATION LEVEL Transact-SQL statement every time you open a connection.
2. ADO.NET applications using the System.Data.SqlClient managed namespace can specify an IsolationLevel option using the SqlConnection.BeginTransaction method.