I have a situation where i want the border between bands to be dashed. That is, I want the bottom row's border to be dashed and the top row of the child band either blank or dashed as well. Is this possible?
I don't know of any samples of exactly what you are trying to do here. It's seems like an odd UI to me - but there is probably some reason for it that I am not privy to. :)
Anyway, if you want to explore using a DrawFilter, I would recommend starting with the Infragistics Knowledge Base. There are lots of articles on DrawFilters with samples. Also, you should get the Infragistics UIElementViewer Utility. It's a big help when working with UIElements.
So far, nothing about this has been trivial. Do you have any examples, or a good place to start my research?
There's no property that will allow you to change only one side of a border style for the row. You would have to use a DrawFilter and draw the border yourself. It would not be a trivial task.