Hello SivaPrasad Bevara,
Thank you for contacting us.
You need to change the application theme at runtime , which is a more complicated process than using a mouseover event. In order for the new theme to be applied to your controls, they need to be recreated on the screen.
Please check this blog post
related to the dynamic switch of application themes. Also, check this forum thread
for more details.
I hope this information helps.
All the best,
the Telerik team
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