Here is some more related information which you might find helpful:
You can expand the recurrence rules on the SQL server using UDF as shown in this blog post -
Alternatively, you can manually parse the recurrence rule and extract all occurrences or a range of occurrences as shown in this kb article
I assume the Silverlight version of the scheduler control has similar API to allow you to expand the recurring series, but you better contact our Silverlight experts for a code sample.
the Telerik team
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