Question

I am trying to make the default ASP.NET MVC application use a remote Oracle database. I have set up the oracle client and can access the remote database from Server Explorer.
I tried changing the connection string from

 <connectionStrings>
    <add name="ApplicationServices"
         connectionString="data source=.\SQLEXPRESS;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|aspnetdb.mdf;User Instance=true"
         providerName="System.Data.SqlClient" />
  </connectionStrings>

to

<connectionStrings>
    <add name="ApplicationServices"
         connectionString="Data Source=orcl;Persist Security Info=True;User ID=username;Password=mypassword;Unicode=True"
         providerName="Oracle.DataAccess.Client" />
  </connectionStrings>

I used the connection string from Server Explorer > Data Connection > orcl.instance

When creating a new user, I am getting the following error in AccountModels.cs

An error occurred while attempting to initialize a System.Data.SqlClient.SqlConnection object. The value that was provided for the connection string may be wrong, or it may contain an invalid syntax.
Parameter name: connectionString

Any idea what am I missing here?

EDIT:
Looks like the following snippet in AccountModels.cs uses System.Data.SqlClient.SqlConnection. How can I use the ODP version.

 public class AccountMembershipService : IMembershipService
    {
        private readonly MembershipProvider _provider;
        ...
    }

Answer 1

You have to use ODP.NET API instead of SqlClient provider. The System.Data.SqlClient classes are for Microsoft SQL server database only.

EDIT:

Oracle article : Oracle Providers for ASP.NET Installation