I can recall that we had a problem with binding the properties of the timeBar, but this problem was fixed. The version that you have specified that you use should contain this fix.
Please refer to our release notes for additional information: http://www.telerik.com/products/silverlight/whats-new/release-history/q2-2011-version-2011-2-0712.aspx
- Interval labels not measured when PeriodStart and PeriodEnd change after initial load.
- Interval labels not measured when PeriodStart and PeriodEnd properties are databound.
Could you please make sure that you are using the latest official release (2011.2 920) of RadControls for Silverlight? In case the problem persists, please open a new support ticket and send me a running test project that demonstrates this problem.
the Telerik team
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