Will it be possible to clarify a bit more on whether you are working with RadGridView for Silverlight ?
The images you provided seem to be with a customization and the strings translated in Russian do not seem to be a part of the suite.
Am I missing anything here?
Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the Telerik Feedback Portal
and vote to affect the priority of the items