You can try passing parameters to the sproc that returns an empty dataset. For instance with a sproc that uses a single parameter, try passing the value '-1' to the sproc.

Also try calling the newentity method of the business object (e.g. entity.NewEntity()).

For editing I would try calling a custom method on the business object that returns the record that you want to edit. If you bind to the form, any changes made to the controls on the form should update the business entity properties. Just call the save method of the form or the SaveEntity method of the business object to save the data to the database.