I'm still digging into the basics of MM and BOs. I hope everyone can suffer through my newbie questions...

Ok, some basics here about binding listbox/combobox to a BO...

Why do you assign a BO in the BindingSource property, but when you assign the BindingSourceDisplaySource and BindingSourceValueMember, you are given the "MM .NET Binding Source Member Selection dialog" where you pick a table and column from some selected SQL database. I would expect to only be able to choose one of the property fields from the EntityObject of the BO that I specified.

Then the same thing happens when assigning the BindingValueSource and BindingValueSourceMember... You assign a BO to BindingValueSource, but then when assigning the BindingValueSourceMember, instead of picking a property from the destination BO Entity, I am again offered the "MM .NET Binding Source Member Selection dialog" from where I choose from any table and column in whatever database I choose.

If I can point directly to tables and columns from any database, why do I need to point to a specific BOs? Or, said another way, if I assign BOs, why do I get to pick from any table and any column in any databse, when then BO only has certin properties in the BO entity?

I just don't get something about how it is all laid out.