[.NET 2.0+] Protected Configuration (Encrypting Config Files)

[jlbantang]

everything's clear except this line

Private Sub LoadConnectionString()
        'Load the current connection string.
        Dim builder As New SqlConnectionStringBuilder(My.Settings.PrimaryConnectionString)
...
end sub

i dont understand the line and its produce an error. i change the argument to

        Dim builder As New SqlConnectionStringBuilder("Data Source=ConnectionStringsServer;Initial Catalog=ConnectionStringsDatabase;User ID=ConnectionStringsUserName;Password=ConnectionStringsPassword")

the program run but i was not able to encrypt/decrypt app.config