Question

I’m building a MVC 3 application and use Entity Framework 4.3 code-first. My context is becoming complex so I’ve decided to working with SQL Server 2008 R2. Then I changed my connection string in web.config. I checked and I know the new connection string is correct, but EF is still working with the default connection string (.\SQLEXPRESS ...) from SQL Server CE (I have now deleted SQL Server CE from nuget packages).

My context name is CodeFirstContext and my connection string name is CodeFirstContext, too. But the return context.Products; always fails and/because the connection string in context says SQLEXPRESS (my web.config sets the connection string to SQLSERVER).

What is going on here? I erased all default connection strings in the project. When I am running the project, it still gets all data from SQL Server Express.

I have been searching for about two days. Why is this so difficult if so many people only have to change the connection string and then it works.

Answer 1

I ‘ve solved the problem like that:

public class CodeFirstContext : DbContext
{
    public CodeFirstContext() : base("RandevuIzle")
    {
    }
    public DbSet<User> Users { get; set; }
}


<connectionStrings>
  <add name="RandevuIzle" connectionString="Data Source=111.222.333.444\MSSQLSERVER2008; Initial Catalog=RandevuIzle;User Id=MyUserName;Password=myPassword" providerName="System.Data.SqlClient" />

Somethings went wrong but i cannot understand. I re-start the project after doing this code below. Then it’s work normally.