Add hyperlink column to gridview using Rowdatabound event

 I have a gridview that I populate from a datasource.  However, I want to add an additional hyperlink column.  I've tried using the row databound event but something is wrong with my code.  Can someone please look at my code and help?
HyperLinkColumn
 

HyperLinkColumn reportLink = new HyperLinkColumn();

string orderID = e.Row.Cells[0].Text;

string url Go to the complete details ...