Sub Classes?

[Dmyze]

I don't know how to do this, but this is what I want to do in code:

Dim oWeek as new FiscalWeek(iWeekNumber, iYearNumber)

iWeek = oWeek.CurrentWeek.WeekNumber
iYear = oWeek.CurrentWeek.YearNumber
iNextWeek = oWeek.NextWeek.WeekNumber
iLastWeek = oWeek.NextWeek.YearNumber

I can "kinda" do it by making a class inside a class:

Public Class FiscalWeek


  Private Shared iNextWeek As Integer
  Private Shared iLastWeek As Integer
  Private Shared iCurrentWeek As Integer
  Private Shared iNextYear As Integer
  Private Shared iLastYear As Integer

  Public CurrentWeek As New cCurrentWeek()
  Public NextWeek As New cNextWeek()

  Class cCurrentWeek

    Public ReadOnly Property WeekNumber() As Integer

      Get
        Return iCurrentWeek
      End Get

    End Property

    Public ReadOnly Property YearNumber()

      Get
        Return iCurrentYear
      End Get

    End Property

  End Class

  Public Class cNextWeek

    Public ReadOnly Property WeekNumber() As Integer

      Get
        Return iNextWeek
      End Get

    End Property

    Public ReadOnly Property YearNumber()

      Get
        Return iNextYear
      End Get

    End Property

This was working pretty much, but I've found when I created two seperate instances of oWeek the Current week gets changed in both when I change it in one. it dosn't make sense to me, but I must be doing this wrong, what is the propper way to have a "nested property"?