<connectionStrings>
<add name="DefaultConnectionString"
connectionString="Data Source=.\sqlexpress;Initial Catalog=Prueba;Integrated Security=true"
providerName="System.data.SqlClient"/>
</connectionStrings>
<add name="DefaultConnectionString"
connectionString="Data Source=.\sqlexpress;Initial Catalog=Prueba;Integrated Security=true"
providerName="System.data.SqlClient"/>
</connectionStrings>