show approve by to manager in asp.net

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C#

ASP.NET

i want to show
when supervisor approve document
like hr supervisor approve hr documents then hr manager able to view that
who approve document i.e approve by

here is sp
when i enter this
sphrdoc2 1
it shows me

DocumentID DocumentName	Document ApproveType Department	    FileUploaded    Approveid           
20	    hosting	MSWord	    3          Finance	        abc.docx      pedning	      
21	   attaok areas	MSWord	   1	        Finance         def.docx    	approve   

then i want to add one more column i.e approve by

please this link i upload image
http://i40.tinypic.com/ejvbph.png[^]