Upadate Count in grid view

my update code in grid view --
 UpdateCommand="UPDATE [Reg] Set [Name]=@Name, [Last_Date_of_Donation]=@Last_Date_of_Donation, [Address]=@Address, [City]=@City, [Password]=@Password, [Confirm_Password]=@Confirm_Password, [Mobile]=@Mobile, [Email]=@Email, [Interested_to_Donate]=@Interested_to_Donate where [Username]=@Username"> 
Now i want to count how many times row is updated ? and count numbers will show in grid view. how can i do this ??