从其他类继承的类

我有一个班级文件

Public Class FileDoc
Inherits BaseClass

Public Sub DeleteDoc()

dim catId as integer = Cat_ID

End Sub

    a bunch of properties...
End Class

我还有一节课……

Public Class BaseClass

Private _Cat_ID As Integer
Public Property Cat_ID() As Integer
    Get
        Return _Cat_ID
    End Get
    Set(ByVal value As Integer)
        _Cat_ID = value
        AssignAllInfo()
    End Set
End Property

Private _Docs As List(Of FileDoc)
Public Property Docs() As List(Of FileDoc)
    Get
        Return _Docs
    End Get
    Set(ByVal value As List(Of FileDoc))
        _Docs = value
    End Set
End Property

我的问题是,由于fileDoc来自基类,当我在fileDoc类中编码时,如何从基类访问值。就像我在sub-deletedoc()中的示例一样,我正在尝试访问这个fileDoc所属的基类的cat_id。

添加继承不会将值传递给类,只传递给属性。

提前通知