Public Overridable Property Visible As Boolean

Dim instance As AnnObject
Dim value As Boolean
 
instance.Visible = value
 
value = instance.Visible

public virtual bool Visible {get; set;}

public:
virtual property bool Visible {
   bool get();
   void set (    bool value);
}

Public Sub AnnObject_Visible(ByVal container As AnnContainer)
   For Each obj As AnnObject In container.Objects
      If (Not obj.Visible) Then
         obj.Visible = True
      End If
   Next obj
End Sub

public void AnnObject_Visible(AnnContainer container)
{
   foreach(AnnObject obj in container.Objects)
   {
      if(!obj.Visible)
         obj.Visible = true;
   }
}