Creating a Connection String and Working with SQL Server LocalDB

Question

I have problem when i try to connect to localdb from visual studio 15. I have installed SQL Server Express 2016

I folowing this tutorial: http://www.asp.net/mvc/overview/getting-started/introduction/creating-a-connection-string

I create model and context(MovieDBContext) class and try to setup connection:

<connectionStrings>
    <add name="DefaultConnection" connectionString="Data Source=(LocalDb)\v11.0;AttachDbFilename=|DataDirectory|\aspnet-MvcMovie-20130603030321.mdf;Initial Catalog=aspnet-MvcMovie-20130603030321;Integrated Security=True" providerName="System.Data.SqlClient" />
    <add name="MovieDBContext"    connectionString="Data Source=(LocalDB)\v11.0;AttachDbFilename=|DataDirectory|\Movies.mdf;Integrated Security=True" providerName="System.Data.SqlClient"
/>

When i try to access to page where i show all movies :

 public ActionResult Index()
 {
     return View(db.Movies.ToList());
 }

I get this exception:

I try to edit connection strings like this and also not working:

  <connectionStrings>
    <add name="DefaultConnection" connectionString="Data Source=(LocalDb)\MSSQLLocalDB;AttachDbFilename=|DataDirectory|\aspnet-MvcMovie-20130603030321.mdf;Initial Catalog=aspnet-MvcMovie-20130603030321;Integrated Security=True" providerName="System.Data.SqlClient" />
    <add name="MovieDBContext"   connectionString="Data Source=(LocalDB)\MSSQLLocalDB;AttachDbFilename=|DataDirectory|\Movies.mdf;Integrated Security=True" providerName="System.Data.SqlClient"
/>  </connectionStrings>

I get this excpetion when i use (local)MSSQLLocalDB

What i do wrong ?

Answer 1

The initial Catalog is missing in MovieDBContext connection string. It needs to be as follows:

 <add name="MovieDBContext"   connectionString="Data Source=(LocalDB)\MSSQLLocalDB;AttachDbFilename=|DataDirectory|\Movies.mdf;Initial Catalog=Movies;Integrated Security=True" providerName="System.Data.SqlClient"/>