protected void LinkButton2_Click(object sender, EventArgs e)
 {
     DatabaseHandler obj=new DatabaseHandler();
     DataSet ds = obj.GetAuctionBids(Session["auctionId"].ToString());
     long winnerBid = 0;
     String winnerUsername = null;
     foreach (DataRow dr in ds.Tables[0].Rows)
     {
         long bid = Convert.ToInt64(dr["CUSTOMER_BID_AMOUNT"].ToString());
         if (winnerBid < bid)
         {
             winnerBid = bid;
             winnerUsername = dr["CUSTOMER_USERNAME"].ToString();
         }
     }
     obj.InsertAuctionWinner(Session["auctionId"].ToString(), winnerUsername);
     Response.Redirect("AuctionResult.aspx?auctionId=" + Session["auctionId"].ToString());
 }