I have the following code to copy and paste from one workbook/sheet to another. Once i paste the value to the sheet i want to "underline" the entire row .......... any ideas?

Workbooks(Roster_InputFilename).Worksheets(Roster_InputFile_Sheet).Range(add_row & ":" & add_row).Copy _
    Destination:=Workbooks(Gradebook_Filename).Worksheets(Gradebook_Sht_Nm_Roster).Range(Rster_lst_row & ":" & Rster_lst_row)