I am using EF Code First in VS 2012 Ultimate with Firebird Dot Net Provider 3.0.2.0. I need to change the connection string run time as to connect to different machine as required. In order to do that, I store the connection string in settings and create the DBProviderFactory in code and pass the connection string to it. It is working fine in my dev machine. Here is the code that is use to create my connection,
private static DbConnection CreateDbConnection(string providerName, string connectionString) { // Assume failure. DbConnection connection = null; // Create the DbProviderFactory and DbConnection. if (connectionString != null) { try { var factory = DbProviderFactories.GetFactory(providerName); connection = factory.CreateConnection(); if (connection != null) connection.ConnectionString = connectionString; } catch (Exception ex) { // Set the connection to null if it was not created. connection = null; MessageBox.Show(EmailException.FormatException(ex)); } } // Return the connection. return connection; } But in my customer machine (Firebird Dot Net Provider 3.0.2.0. installed) it throws "Unable to Find .Net Framework Data Provider". Here is the stack An Unhandled Exception has occured in PearlPOS ---------------------------------------------- System.ArgumentException: Unable to find the requested .Net Framework Data Provider. It may not be installed. at System.Data.Common.DbProviderFactories.GetFactory(String providerInvariantName) at System.Data.Entity.Internal.LazyInternalConnection.CreateConnectionFromProvi derName(String providerInvariantName) at System.Data.Entity.Internal.LazyInternalConnection.InitializeFromConnectionS tringSetting(ConnectionStringSettings appConfigConnection) at System.Data.Entity.Internal.LazyInternalConnection.TryInitializeFromAppConfi g(String name, AppConfig config) at System.Data.Entity.Internal.LazyInternalConnection.Initialize() at System.Data.Entity.Internal.LazyInternalConnection.get_Connection() at System.Data.Entity.Internal.LazyInternalContext.get_Connection() at Pearlpos.Data.Utils.Database.get_DataSource() at My.MyApplication.ConnectDatabase() at My.MyApplication.Application_Startup(Object sender, StartupEventArgs e) at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.OnStar tup(StartupEventArgs eventArgs) at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.DoAppl icationModel() at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.Run(St ring[] commandLine) at My.MyApplication.Main(String[] Args) ---------------------------------------------- Thanks, Muthu Annamalai ------------------------------------------------------------------------------ AlienVault Unified Security Management (USM) platform delivers complete security visibility with the essential security capabilities. Easily and efficiently configure, manage, and operate all of your security controls from a single console and one unified framework. Download a free trial. http://p.sf.net/sfu/alienvault_d2d _______________________________________________ Firebird-net-provider mailing list Firebird-net-provider@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/firebird-net-provider