Hi Tareq,
Thanks for your interest in Syncfusion Products.
You will have to handle things yourself. Handle ClipboardCopy and copy the cells you want to copy. Please refer to a Forum Thread on 'exclude hidden columns from Ctrl-C operations?' in the following location.
http://www.syncfusion.com/support/Forums/message.aspx?MessageID=20285Let me know if this helps.
Regards,
Nisha.