Greas

<configuration>
    
    <connectionStrings>
        <add name="db_userConnectionString" connectionString="Data Source=WWW-C21CD4737E0;Initial Catalog=db_user;Integrated Security=True"
            providerName="System.Data.SqlClient" />
    </connectionStrings>
    
    <system.web>
        <compilation debug="true" targetFramework="4.0" />
    </system.web>

</configuration>