Hello Deepthi,
There seems to be a problem standard Silverlight TextBox when typing special characters using MS IME which was also reported in the forum thread this forum thread. Unfortunately this issues is beyond our possibility to fix. There are currently also problems with RadRichTextBox related to invisible IME that we are working on. We will do our best to workaround these issues for the next major release.
Best wishes,
Iva
the Telerik team
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