public Odgovor BuyItem(string IDi, string IDs, string cena, string IDkupil) { Odgovor ret = new Odgovor { vrednost = false }; string sql = "update \"ShoppingListItem\" set Price = @cena, BoughtBy_ID = @idkupu where ID = @id AND Sho_ID = @ids"; SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["LoftApp2ConnectionString"].ConnectionString); conn.Open(); SqlCommand comm = new SqlCommand(sql, conn); comm.Parameters.AddWithValue("@cena", cena); comm.Parameters.AddWithValue("@idkupu", IDkupil); comm.Parameters.AddWithValue("@id", IDi); comm.Parameters.AddWithValue("@ids", IDs); comm.ExecuteNonQuery(); conn.Close(); ret.vrednost = true; return(ret); }