示例#1
0
        private void btnCancel_Click(object sender, EventArgs e)
        {
            DialogResult sure = MessageBox.Show("Do you want to discard these details?", "Are you sure?", MessageBoxButtons.YesNo, MessageBoxIcon.Warning);

            if (sure == DialogResult.Yes)
            {
                this.Close();
            }
            frmAddBook f = new frmAddBook(); f.Show();
        }
示例#2
0
 private void newBooksStockToolStripMenuItem_Click(object sender, EventArgs e)
 {
     frmAddBook f = new frmAddBook(); f.MdiParent = this; f.Show();
 }
示例#3
0
        private void btnAdd_Click(object sender, EventArgs e)
        {
            //Disclaimers Start
            if (cboxTitle.Text == "" || cboxType.Text == "" || cboxAuthor.Text == "" || cboxGenre.Text == "" || txtPages.Text == "" || txtPrice.Text == "" || txtQty.Text == "" || txtPublisher.Text == "")
            {
                MessageBox.Show("Stock cannot be added because, one or many of the nessasary fields are left blank. Please fill all the fields and try again", "Field Left Blank", MessageBoxButtons.OK, MessageBoxIcon.Error); goto End;
            }

            //Remove single & double quotes which cause sql troubles
            foreach (Control c in this.Controls)
            {
                if (c is TextBox || c is ComboBox)
                {
                    c.Text = c.Text.Replace("'", ""); c.Text = c.Text.Replace("\"", "");
                }
            }

            int Qty; bool q = int.TryParse(txtQty.Text, out Qty);

            if (q == false)
            {
                MessageBox.Show("Insert a valid value for No. of books", "Invalid no. of books", MessageBoxButtons.OK, MessageBoxIcon.Error); goto End;
            }
            //Disclaimers End

            //Declarations
            string Title = cboxTitle.Text; string Maxbook = "B0000"; string BookID; double Price, Trans; Methods methods = new Methods();

            //When Creating new title.
            if (TitleNew == true)
            {
                //Disclaimer + integer Declarations

                int Pages; bool pg = int.TryParse(txtPages.Text, out Pages); bool p = double.TryParse(txtPrice.Text, out Price);
                if (q == false || p == false || pg == false)
                {
                    MessageBox.Show("Insert a valid value for No. of books, No. Pages or Price"); goto End;
                }


                //Declarations

                string Type, Author, Genre, ISBN, Publisher; TitleID = "";
                Author = cboxAuthor.Text; Genre = cboxGenre.Text; ISBN = txtISBN.Text; Publisher = txtPublisher.Text;

                if (cboxType.SelectedIndex == 0)
                {
                    Type = "CLend";
                }
                else if (cboxType.SelectedIndex == 1)
                {
                    Type = "ALend";
                }
                else
                {
                    Type = "Ref";
                }

                //Creating New TitleID
                {
                    //Getting MaxID from Databse
                    string       sqlMaxTitle = "SELECT MAX(TitleID) as MaxTitle, COUNT(TitleID) as CountID FROM Title";
                    OleDbCommand cmdMaxTitle = new OleDbCommand(sqlMaxTitle, db.con);
                    if (db.con.State.Equals(ConnectionState.Closed))
                    {
                        db.con.Open();
                    }
                    OleDbDataReader drMaxTitle = cmdMaxTitle.ExecuteReader(); drMaxTitle.Read();


                    //If there are titles in DB, formulate a new TitleID

                    if (drMaxTitle["CountID"].ToString() != "0")
                    {
                        // Calling NewID method
                        TitleID = methods.NewID(drMaxTitle["MaxTitle"].ToString());
                    }
                    else
                    {
                        TitleID = "T0001";
                    }
                }

                //Declartions End


                //Add Values to Relation: Title

                string       sqlTitleNew = string.Format("INSERT INTO Title(TitleID, BTitle, BType, Price, Genre, ISBN, Pg, Author, Publisher) VALUES('{0}', '{1}', '{2}', '{3}', '{4}', '{5}', '{6}', '{7}', '{8}')", TitleID, Title, Type, Price, Genre, ISBN, Pages, Author, Publisher);
                OleDbCommand cmdTitleNew = new OleDbCommand(sqlTitleNew, db.con);
                if (db.con.State.Equals(ConnectionState.Closed))
                {
                    db.con.Open();
                }
                cmdTitleNew.ExecuteNonQuery();
            }
            else
            {
                Price = double.Parse(txtPrice.Text);
            }

            // Get the highest BookID from Database
            string       sqlMaxBook = "SELECT MAX(BookID) as MaxBook, COUNT(BookID) as CountID FROM Book";
            OleDbCommand cmdMaxBook = new OleDbCommand(sqlMaxBook, db.con);

            if (db.con.State.Equals(ConnectionState.Closed))
            {
                db.con.Open();
            }
            OleDbDataReader drMaxbook = cmdMaxBook.ExecuteReader(); drMaxbook.Read();

            if (drMaxbook["CountID"].ToString() != "0")
            {
                Maxbook = drMaxbook["MaxBook"].ToString();
            }
            else
            {
                Maxbook = "B0000";
            }

            // Adding books in a loop.

            for (int book = 1; book <= Qty; book++)
            {
                //Calling new ID method to create newID
                BookID = methods.NewID(Maxbook);

                //Adding a book with such book ID & TitleID to DB

                string       sqlbook = string.Format("INSERT INTO Book (BookID, TitleID) VALUES ('{0}','{1}')", BookID, TitleID);
                OleDbCommand cmdbook = new OleDbCommand(sqlbook, db.con);
                if (db.con.State.Equals(ConnectionState.Closed))
                {
                    db.con.Open();
                }
                cmdbook.ExecuteNonQuery();

                //Make the BookID as the new Book_MaxID to help the next loop
                Maxbook = BookID;
            }

            Maxbook = ""; BookID = "";


            // Adding Transaction details

            Trans = Price * Qty; string TDetail = string.Format("{0} books under the Title: {1}", Qty, Title);

            string       sqlTrans = string.Format("INSERT INTO Cash (TDate, Amount, TDetail, Event) VALUES('{0}', {1}, '{2}', 'NewStock')", DateTime.Now.ToString(), -Trans, TDetail);
            OleDbCommand cmdTrans = new OleDbCommand(sqlTrans, db.con);

            cmdTrans.ExecuteNonQuery();
            // Transactions added.

            //Successful Message
            MessageBox.Show(string.Format("{0} Book(s) and/or Book Title have been added to collection and transaction has been recorded successfully", Qty.ToString()), "Books Successfully Added", MessageBoxButtons.OK, MessageBoxIcon.Information);

            //Reset form
            this.Close(); frmAddBook f = new frmAddBook(); f.Show();

            End : if (db.con.State.Equals(ConnectionState.Open))
            {
                db.con.Close();
            }
        }