Hi Charles,

Here are some of your missing parts:

All reporting BBS are created using the SF Custom Business Binding Source template the whole idea behind this BBS is to create specific report BOs that will inherit from any BO you have already created for your forms, this will give you the advantage of creating specific report properties in those BO which are not needed in your form's BOs.

If you select the CustomerNotesReportBBS.vb right click and choose "View Code" you will see this code:

 
Public Class CustomerNotesReportBBS
     Inherits MicroFour.StrataFrame.Business.BusinessBindingSource(Of CustomerNotesBO)
End Class

The highlighted line above is your missing link, this line is telling the BBS to inherit all Properties, Methods and Events from the CustomerNotesBO, the same applies to the CustomerReportBBS.vb and that is why you can see all fields from those form's BOs.