Practical Examples of Namespaces in VB.NET 2005 - Inheriting a class from a root namespace (or assembly): example

(Page 5 of 6 )

This section is based on the explanation in the previous two sections. Let us create a solution with the name "SampleInheritance" and add a simple class "First" as follows:

PublicClass First
    Private m_x As Integer
    Private m_y As Integer
    Public Sub New(ByVal a As Integer, ByVal b As Integer)
        m_x = a
        m_y = b
    End Sub
    Public Property X() As Integer
        Get
            Return m_x
        End Get
        Set(ByVal value As Integer)
            m_x = value
        End Set
    End Property
    Public Property Y() As Integer
        Get
            Return m_y
        End Get
        Set(ByVal value As Integer)
            m_y = value
        End Set
    End Property
EndClass

Please be aware that the above doesn't belong to any namespace; instead, it belongs to the root namespace (or the assembly). Let us add one more class "First" as follows:

NamespaceNamespace1
    Public Class First
        Private m_a As Integer
        Private m_b As Integer
        Public Sub New(ByVal x As Integer, ByVal y As Integer)
            m_a = x
            m_b = y
        End Sub
        Public Property A() As Integer
            Get
                Return m_a
            End Get
            Set(ByVal value As Integer)
                m_a = value
            End Set
        End Property
        Public Property B() As Integer
            Get
                Return m_b
            End Get
            Set(ByVal value As Integer)
                m_b = value
            End Set
        End Property
    End Class
EndNamespace

The above is another class with the same name "First" with a different set of properties. Observe that it is encapsulated within a new namespace, "Namespace1." The next section will show you how to inherit each of them according to your needs.

Next: Inheriting a class from root namespace (or assembly): example continued >>
 

More Visual Basic.NET Articles
More By Jagadish Chaterjee

Comments On: Practical Examples of Namespaces in VB.NET 2005

· Hello guys! I am extending the series on OOPS with Visual Basic 2005 with this...   >>> Post your comment now!