So far, the controls in the WPF suite have no known issues with different versions of SQL servers.
However, our QSF ( the desktop version of our demo application) depends on the presence of SQL Express. This is required only for the sample data used in the examples. Thank you for reporting this issue!
I agree that having to manually configure the DB connection for the samples is frustrating.
Improvement of the QSF installer is already in our schedule. I can not definitely promise it for Q3 but I 'll do my best for this feature to come with the upcoming facelift of the QSF app along with some UX and performance improvements.
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