Riporto una porzione del file varie.vb

codice:
Namespace laspiaggetta
    Public Class database
        Public ConnectionString As String
        Dim objConn As New OleDbConnection()
        Dim objCmd As New OleDbCommand()

        Public Function SelectSQL(ByVal strSelect As String) As OleDbDataReader
        End Function

        Public Function ExecuteNonQuery(ByVal strQuery As String) As Boolean
        End Function

        Public Function Controlla_Stringa(ByVal Campo As String) As String
        End Function
    End Class

    Public Class Login_PRIVATE
        Inherits System.Web.UI.Page
        Protected WithEvents Label1, Label2, Errore As System.Web.UI.WebControls.Label
        Protected WithEvents Button1 As System.Web.UI.WebControls.Button
        Protected WithEvents Nome, Pwd As System.Web.UI.WebControls.TextBox

        Sub Login(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
            Dim ObjDatabase As New laspiaggetta.database()

         End Sub

    End Class

End Namespace
io nella mia pagina ASPX come faccio ad importare per esempio la classe Login_PRIVATE che contiene le dichiarazioni degli oggetti presenti nel codice HTML e le funzioni?