In order to implement the desired behavior, you can use AnimatedPropertySetting objects. This type of objects provides a smooth animation between two different values of a property. A sample case of AnimatedPropertySetting usage can be found in this article.
Please find attached a project which demonstrates how AnimatedPropertySetting can help in your case.
I hope you find this information helpful. If you have any other questions, do not hesitate to contact us.
Kind regards,
Stefan
the Telerik team
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