Please try new Beta version of OraDirect .NET 3.50 Beta version available for download now.
In this version we introduced following features:
- Data Design Extensibility (DDEX) for Visual Studio 2005 support added
 - Mono support added
 - ASP.NET 2.0 providers added: Membership Provider, Profile Provider, Role Provider, Session State Provider
 - Capability to call OraDirect .NET runtime assemlies by partially trusted code added
 - DataSet Wizard added
 - Enterprise Library Data Access Application Block support added
 - Added streaming support for OracleScript
 - OraDeveloper Tools installation separated from OraDirect .NET installation
 - Four digits of OracleConnection.Client version is returning
 - Licensing for applications that call OraDirect .NET through DbProviderFactory added. This allows to use OraDirect .NET in SQL Server 2005 Business Intelligence Solutions
 - Bug with OracleConnection.GetServerList fixed
 - Bug with OracleParameter.this[int] and null elements fixed
 - Bug with BreakExec in Direct mode fixed
 - Bug with Package generation wizard fixed
 - Bug with returning string parameters when Unicode=true in Direct mode fixed
 - Bug with OraclePackage.DescribeProcedure fixed
 - Bug with setting empty parameter in connection string fixed
 - Bug with parameters regenerating in OracleDataAdapter editor fixed
 
Core Lab development team
http://www.crlab.com/oranet