I read this post from 2 years ago:
http://es.infragistics.com/community/forums/t/18178.aspx Which indicated it was not available yet.
Had there been any head way on either Setting a valuebasedapperance in a summary or extending the valuebasedapperance ofn the column to include the columns summary?
Or, you could just use the SummaryValueChanged event to set the appearance on the summary.
Here is the sample:
Hello Wanderingmystic,
At that moment we didn`t implemt such functionality (ValueBaseAppearance in the summary), but there are different approaches to solve this task. I made similar sample to another customer, where I`m using CreationFilter and modify the ForeColor in the different summaries depending of column summary. Please take a look at that idea (see attached sample) and let me know if you have any questions.
Regards