sql conlection

<connectionStrings>
<add name="MusicStoreEntities"
connectionString="server=.\sqlexpress;database=musicstore;integrated security=true;"
providerName="System.Data.SqlClient"/>
</connectionStrings>

<connectionStrings>

<add name="SqlConnectionString" connectionString="data source=(LocalDB)\MSSQLLocalDB;attachdbfilename=|DataDirectory|\wkmvc_db.mdf;integrated security=True;connect timeout=30;MultipleActiveResultSets=True;App=EntityFramework" providerName="System.Data.SqlClient" />
<add name="Entities" connectionString="metadata=res:///Model1.csdl|res:///Model1.ssdl|res://*/Model1.msl;provider=System.Data.SqlClient;provider connection string="data source=(LocalDB)\MSSQLLocalDB;attachdbfilename=|DataDirectory|\wkmvc_db.mdf;integrated security=True;multipleactiveresultsets=True;connect timeout=30;application name=EntityFramework"" providerName="System.Data.EntityClient" /></connectionStrings>
<entityFramework>