Print selected columns from DataTable

Hi
I have a webform that contains checkBox List with column names from DataTable. DataTable on this page is filled  session stored datable as below;
DataTable dt = (DataTable) Session["SearchResutls"];
In Print button click i want to check the user selected columns on the webform and print only those columns data.
I have written source code for downloading selected columns data from DataTable as below;
http://forums.asp.net/t/1474367.aspx
Thanks,
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