In my application I have a WPF user interface. I have been unable to successfully register a mm.net business object in the code behind file. So I created some "controller" classes and tried to register the bussiness objects there.

In the XAML code behind file, I would get an error at run time: "Object reference not set to an instance of an object." as soon as the RegisterBizObject command was executed.
In the controller class, the error didn't occur until I tried to query data using a method contained in the registered object.

Does anyone have some good information on the RegisterBizObject command:
Where it can and cannot be used?
What needs to be done before this command is run?
Is it possible to register a business object in a class that is not associated with a control?

Any ideas or help would be greatly appreciated.

Lynn 8-)