Use this conn string format so the db can be moved to any machine. The DB is inside
the app_data folder.




<configuration>
	<appSettings/>
	<connectionStrings>
  
  <add name="customers-05" connectionString="server=(local)\SQLExpress;AttachDbFileName=|DataDirectory|customers-05.mdf;Integrated Security=true;"

   providerName="System.Data.SqlClient" />
 </connectionStrings>
	
  
  <system.web>

     
    <compilation debug="true"/>
		<authentication mode="Windows"/>
	</system.web>
</configuration>