App setting

<configuration>

<appSettings>

<add key="ConnStr" value="Data Source=.\SQLEXPRESS;AttachDbFilename=C:\MyData\App_Data\Database.mdf;Integrated Security=True;User Instance=True"/>

</appSettings>

<connectionStrings>

<add name="ConnStr" connectionString="Data Source=.\SQLEXPRESS;AttachDbFilename=C:\MyData\App_Data\Database.mdf;Integrated Security=True;User Instance=True"/>

</connectionStrings>

</configuration>