Why is my connectionString not working?

I'm working on a project in MVC 3.
The name of my database is:  SchoolIn.Models.SchoolIn.dB
Here's my connectionString:
<connectionStrings>       <add name="ApplicationServices"        connectionString="data source=.\SQLEXPRESS;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|aspnetdb.mdf;User Instance=true"        providerName="System.Data.SqlClient" />
      <add name="SchoolInDB"         connectionString="data source=.\SQLEXPRESS;Integrated Security=SSPI; Database=SchoolIn.Modles.SchoolInDB; Trusted_Connection=True;User Instance=true; MultipleActiveResultSets=true"         providerName="System.Data.SqlClient" /> </connectionStrings>
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