To add more to this, the only time that I cannot see the new value I have set is from a method in the class. If I set the value in the derived class, I can see it in all those methods. But, calling a method from the class will make the setting I have done to dissappear and replaced by the default value of the property defined in the class level.

In order to workaround this, I have to create a method in the class such as:

    ' expC1 Table
    Public Function SetLogin(ByVal tcTable As String) As String
        cLogin = tcTable
    End Function

that I am calling from the derived class. Using this approach will make the class property to hold the new value even when I am calling a method of its own later on.

But, this is kind primitive. I must be missing something. What is blocking the derived class to be able to set a value into that property which would also be visible in the class?