示例#1
0
        public IActionResult OnPost()
        {
            Console.WriteLine("OnPost");
            for (int i = 0; i < BookToDelete.Count(); i++)
            {
                Console.WriteLine("BookID: " + BookToDelete[i].BookTitle);
            }

            DBConnection  dbstring     = new DBConnection();
            string        DBConnection = dbstring.DbString();
            SqlConnection conn         = new SqlConnection(DBConnection);

            conn.Open();

            for (int i = 0; i < BookToDelete.Count; i++)
            {
                using (SqlCommand command = new SqlCommand())
                {
                    command.Connection  = conn;
                    command.CommandText = @"DELETE FROM MemberBook WHERE LoanedBookId = BookToDelete[i].Id";
                }
            }

            return(RedirectToPage("/Index"));
        }
示例#2
0
        public void OnGet()
        {
            // Connect to Database
            DBConnection  dbstring     = new DBConnection();
            string        DBConnection = dbstring.DbString();
            SqlConnection conn         = new SqlConnection(DBConnection);

            conn.Open();
            int userSessionID = 123;

            using (SqlCommand command = new SqlCommand())
            {
                command.Connection = conn;

                //SQL Query
                Books = new List <LoanedBook>();
                command.CommandText = @"SELECT * FROM MemberBook WHERE UsernameId = @uID";
                command.Parameters.AddWithValue("@uID", userSessionID);

                if (!string.IsNullOrEmpty(SearchTitle))
                {
                    command.CommandText += " WHERE (BookTitle LIKE '%' + @BookTitle) OR (BookTitle LIKE @BookTitle + '%') OR (BookTitle LIKE '%' + @BookTitle + '%')";
                    command.Parameters.AddWithValue("@BookTitle", (SearchTitle));
                }

                isDelete = new List <bool> {
                    false
                };

                SqlDataReader reader = command.ExecuteReader(); //read records

                LoanedBook = new List <PersonalList>();
                while (reader.Read())
                {
                    PersonalList record = new PersonalList();
                    record.BookID     = reader.GetInt32(2);
                    record.DateLoaned = reader.GetString(3);
                    Console.WriteLine(record.BookID);
                    Console.WriteLine(record.DateLoaned);
                    LoanedBook.Add(record);
                }
                reader.Close();
            }
            List <int> BookId = new List <int>();

            for (int i = 0; i < LoanedBook.Count; i++)
            {
                int Id = LoanedBook[i].BookID;
                BookId.Add(Id);
            }
            BookId = BookId.Distinct().ToList();

            DBConnection  dbstring2     = new DBConnection();
            string        DBConnection2 = dbstring.DbString();
            SqlConnection conn2         = new SqlConnection(DBConnection);

            conn2.Open();


            //SQL Query
            for (int i = 0; i < BookId.Count; i++)
            {
                using (SqlCommand command = new SqlCommand())
                {
                    command.Connection = conn2;
                    Books = new List <LoanedBook>();
                    command.CommandText = @"SELECT * FROM PersonalList WHERE BookID = @BKID";
                    command.Parameters.AddWithValue("@BKID", BookId[i]);
                    SqlDataReader reader = command.ExecuteReader();
                    LoanedBookTitle = new List <PersonalList>();
                    while (reader.Read())
                    {
                        PersonalList record = new PersonalList();
                        record.BookID    = reader.GetInt32(1);
                        record.BookTitle = reader.GetString(2);
                        record.Author    = reader.GetString(3);
                        record.Genre     = reader.GetString(4);
                        Console.WriteLine(record.BookID);
                        Console.WriteLine(record.BookTitle);
                        Console.WriteLine(record.Author);
                        Console.WriteLine(record.Genre);
                        LoanedBook.Add(record);
                    }
                    reader.Close();
                }
            }

            isDelete = new List <bool> {
            };

            for (int i = 0; i < Books.Count; i++)
            {
                if (isDelete[i] == true)
                {
                    BookToDelete.Add(Books[i]);
                }
            }
        }