Handling Related Data in Multiple DataGrids with Code Behind and JavaScript

CREATE procedure dbo.usp_UpdateVisitedBreakdown( 
@caserefno varchar(50),
@CatID int, 
@AreaID int, 
@desc varchar(200), 
@risk int ,
@comments varchar(1000)
) 

as 
if @risk<0 
set @risk=@risk*-1
if @CatID <>0 and @AreaID<>0 
begin
 if exists (select * from BreakDown_Visited where lower(CatID) = lower(@CatID) and  lower(AreaID) = lower(@AreaID) and CaseRefNo=@caserefno ) 
         begin 
                update 
                        BreakDown_Visited
                set 
  CaseRefNo=@caserefno,
                        CatID = @CatID ,
                        AreaID = @AreaID ,
                        ID = @desc ,
                        risk = @risk ,
  comments=@comments
                where 
                        CatID= @CatID and AreaID=@AreaID
          end 
  else 
          begin 
                 insert into BreakDown_Visited(CaseRefNo,CatID,AreaID,ID,risk,comments) values(@caserefno,@CatID,@AreaID,@desc ,@risk,@comments) 
                 
                end 
end
GO