Hi PadhuNandhan,

Follow this link:

http://help.infragistics.com/NetAdvantage/ASPNET/2011.1/CLR4.0/?page=WebTextEdit_Client_Side_Events_CSOM.html

Handle any of the client side events.

You can handle KeyDown if the key is “space” you can cancel the event or remove the value.

I hope it helps.

Looking forward to hear from you.

Sincerely,

Georgi Sashev

Developer Support Engineer

Infragistics, Inc.

http://es.infragistics.com/support