Файл Form5.Cs

using MySql.Data.MySqlClient;

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Windows.Forms;

using iTextSharp.text.pdf;

using iTextSharp.text;

using Microsoft.VisualBasic.Devices;

using static System.Windows.Forms.VisualStyles.VisualStyleElement;

using System.Reflection.PortableExecutable;

using MySqlX.XDevAPI;

using System.Collections;

using Microsoft.VisualBasic.ApplicationServices;

using Microsoft.VisualBasic.Logging;

using static System.Net.Mime.MediaTypeNames;

using static System.Runtime.InteropServices.JavaScript.JSType;

namespace hikingtrips

{

public partial class Form5 : Form

{

private const string connectionString = "server=localhost;database=hikingtrips;uid=root;password=Fuckingpassword2;";

private DataGridViewCell clickedCell;

int selectedIndex1;

int selectedIndex2;

double days;

int x;

private static readonly Random rnd = new Random();

int cost = rnd.Next(500, 5000);

int instr = rnd.Next(1, 6);

int paidornot = 1;

string usertripid;

public Form5(int usr_ind)

{

InitializeComponent();

this.x = usr_ind;

}

private void button1_Click(object sender, EventArgs e)

{

LoadRoutes();

}

private void button3_Click(object sender, EventArgs e)

{

LoadEquipment();

}

private void button2_Click(object sender, EventArgs e)

{

DateTime dt = dateTimePicker1.Value;

DateTime new_dt = dt.Date;

ExportSelectedRouteToPdf(new_dt);

}

private void button4_Click(object sender, EventArgs e)

{

InfoAboutTrips();

}

private void button5_Click(object sender, EventArgs e)

{

InfoAboutEquipment();

}

private void LoadRoutes()

{

using (MySqlConnection connection = new MySqlConnection(connectionString))

{

connection.Open();

string query = "SELECT * FROM routes";

using (MySqlCommand command = new MySqlCommand(query, connection))

{

MySqlDataAdapter adapter = new MySqlDataAdapter(command);

DataTable routesTable = new DataTable();

adapter.Fill(routesTable);

dataGridView1.DataSource = routesTable;

}

}

}

private void LoadEquipment()

{

using (MySqlConnection connection = new MySqlConnection(connectionString))

{

connection.Open();

string query = "SELECT * FROM equipment";

using (MySqlCommand command = new MySqlCommand(query, connection))

{

MySqlDataAdapter adapter = new MySqlDataAdapter(command);

DataTable routesTable = new DataTable();

adapter.Fill(routesTable);

dataGridView2.DataSource = routesTable;

}

}

}

public void ExportSelectedRouteToPdf(DateTime new_dt)

{

Document document = new Document();

PdfWriter.GetInstance(document, new System.IO.FileStream(@"C:\Users\ACER\Desktop\receipt.pdf", System.IO.FileMode.Create));

string ind = x.ToString();

if (dataGridView1.SelectedRows.Count > 0)

{

if (dataGridView2.SelectedRows.Count > 0)

{

selectedIndex1 = Convert.ToInt32(dataGridView1.SelectedRows[0].Cells["route_id"].Value);

selectedIndex2 = Convert.ToInt32(dataGridView2.SelectedRows[0].Cells["equipment_id"].Value);

using (MySqlConnection connection2 = new MySqlConnection(connectionString))

{

string query2 = "SELECT last_name, first_name, middle_name FROM costumers WHERE user_id = @ind";

MySqlCommand command2 = new MySqlCommand(query2, connection2);

command2.Parameters.AddWithValue("@ind", ind);

connection2.Open();

MySqlDataReader reader2 = command2.ExecuteReader();

if (reader2.Read())

{

string f = reader2["last_name"].ToString();

string i = reader2["first_name"].ToString();

string o = reader2["middle_name"].ToString();

document.Open();

document.Add(new Paragraph("Route information"));

document.Add(new Paragraph($"Dear {f} " + $"{i} " + $"{o}, " + "we inform you that you have purchased a route and rented equipment for hiking. You will find information about your purchases in the receipt below."));

document.Add(new Paragraph(" "));

}

reader2.Close();

connection2.Close();

}

using (MySqlConnection connection = new MySqlConnection(connectionString))

{

string query = "SELECT title, duration_in_hours, duration_in_days ,point_of_departure, price FROM routes WHERE route_id = @index";

MySqlCommand command = new MySqlCommand(query, connection);

command.Parameters.AddWithValue("@index", selectedIndex1);

connection.Open();

MySqlDataReader reader = command.ExecuteReader();

if (reader.Read())

{

string title = reader["title"].ToString();

string duration_in_hours = reader["duration_in_hours"].ToString();

string duration_in_days = reader["duration_in_days"].ToString();

string point_of_departure = reader["point_of_departure"].ToString();

string price = reader["price"].ToString();

document.Add(new Paragraph($"Information about a purchased hiking trip:"));

document.Add(new Paragraph($"Title: {title}"));

document.Add(new Paragraph($"Duration in hours: {duration_in_hours} hours"));

document.Add(new Paragraph($"Duration in days: {duration_in_days} days"));

document.Add(new Paragraph($"Point of departure: {point_of_departure}"));

document.Add(new Paragraph($"Price: {price}"));

document.Add(new Paragraph(" "));

days = Convert.ToDouble(duration_in_days);

}

reader.Close();

connection.Close();

}

using (MySqlConnection connection3 = new MySqlConnection(connectionString))

{

string query3 = "SELECT title, amount FROM equipment WHERE equipment_id = @index";

MySqlCommand command3 = new MySqlCommand(query3, connection3);

command3.Parameters.AddWithValue("@index", selectedIndex2);

connection3.Open();

MySqlDataReader reader3 = command3.ExecuteReader();

if (reader3.Read())

{

string title = reader3["title"].ToString();

document.Add(new Paragraph($"Information about a purchased equipment:"));

document.Add(new Paragraph($"Title: {title}"));

document.Add(new Paragraph(" "));

}

reader3.Close();

connection3.Close();

}

using (MySqlConnection connection6 = new MySqlConnection(connectionString))

{

string query6 = "SELECT * FROM instructors WHERE instructor_id = @index";

MySqlCommand command6 = new MySqlCommand(query6, connection6);

command6.Parameters.AddWithValue("@index", instr);

connection6.Open();

MySqlDataReader reader6 = command6.ExecuteReader();

if (reader6.Read())

{

string last_name = reader6["last_name"].ToString();

string first_name = reader6["first_name"].ToString();

string middle_name = reader6["middle_name"].ToString();

string phone_number = reader6["phone_number"].ToString();

string email = reader6["email"].ToString();

string seniority = reader6["seniority"].ToString();

document.Add(new Paragraph($"Information about your instructor:"));

document.Add(new Paragraph($"His name: {last_name} " + $"{first_name} " + $"{middle_name}"));

document.Add(new Paragraph($"His phone number: {phone_number}"));

document.Add(new Paragraph($"His e-mail: {email}"));

document.Add(new Paragraph($"His seniority: {seniority}"));

document.Add(new Paragraph(" "));

}

reader6.Close();

connection6.Close();

}

using (MySqlConnection connection4 = new MySqlConnection(connectionString))

{

connection4.Open();

string query4 = "INSERT INTO teams (trip, user, instructor, paid_or_not) VALUES (@trip, @user, @instructor, @paid_or_not)";

string query6 = "SELECT user_trip_id FROM teams WHERE user = @index";

using (MySqlCommand command = new MySqlCommand(query4, connection4))

{

command.Parameters.AddWithValue("@trip", selectedIndex1);

command.Parameters.AddWithValue("@user", ind);

command.Parameters.AddWithValue("@instructor", instr);

command.Parameters.AddWithValue("@paid_or_not", paidornot);

command.ExecuteNonQuery();

}

using (MySqlCommand command2 = new MySqlCommand(query6, connection4))

{

command2.Parameters.AddWithValue("@index", ind);

usertripid = Convert.ToInt32(command2.ExecuteScalar()).ToString();

}

connection4.Close();

}

using (MySqlConnection connection5 = new MySqlConnection(connectionString))

{

connection5.Open();

string query5 = "INSERT INTO rent (user_on_trip, equipment, price) VALUES (@user_on_trip, @equipment, @price)";

using (MySqlCommand command = new MySqlCommand(query5, connection5))

{

command.Parameters.AddWithValue("@user_on_trip", usertripid);

command.Parameters.AddWithValue("@equipment", selectedIndex2);

command.Parameters.AddWithValue("@price", cost);

command.ExecuteNonQuery();

}

connection5.Close();

}

}

using (MySqlConnection connection = new MySqlConnection(connectionString))

{

connection.Open();

string query = "INSERT INTO trip (route, date_of_begining, date_of_ending) VALUES (@route, @date_of_begining, @date_of_ending)";

using (MySqlCommand command = new MySqlCommand(query, connection))

{

DateTime endDate = new_dt.AddDays(days);

command.Parameters.AddWithValue("@route", selectedIndex1);

command.Parameters.AddWithValue("@date_of_begining", new_dt.ToString("yyyy-MM-dd"));

command.Parameters.AddWithValue("@date_of_ending", endDate.ToString("yyyy-MM-dd"));

command.ExecuteNonQuery();

}

}

using (MySqlConnection connection7 = new MySqlConnection(connectionString))

{

string query7 = "SELECT date_of_begining, date_of_ending FROM trip WHERE trip_id = (SELECT MAX(trip_id) FROM trip)";

MySqlCommand command7 = new MySqlCommand(query7, connection7);

connection7.Open();

MySqlDataReader reader7 = command7.ExecuteReader();

if (reader7.Read())

{

string date_of_begining = reader7["date_of_begining"].ToString();

string date_of_ending = reader7["date_of_ending"].ToString();

document.Add(new Paragraph($"Information about dates you have choosen for the trip:"));

document.Add(new Paragraph($"Date of begining: {date_of_begining}"));

document.Add(new Paragraph($"Date of ending: {date_of_ending}"));

document.Close();

}

reader7.Close();

connection7.Close();

MessageBox.Show("PDF document has been successfully saved to the desktop!", "Congratulations!", MessageBoxButtons.OK, MessageBoxIcon.Information);

}

}

Form6 frm6 = new Form6(usertripid);

frm6.Show();

this.Hide();

}

private void InfoAboutTrips()

{

Document document = new Document();

PdfWriter.GetInstance(document, new System.IO.FileStream(@"C:\Users\ACER\Desktop\Trips.pdf", System.IO.FileMode.Create));

using (MySqlConnection connection = new MySqlConnection(connectionString))

{

string query = "SELECT route_id, title, duration_in_hours, point_of_departure, price FROM routes";

MySqlCommand command = new MySqlCommand(query, connection);

MySqlDataAdapter da = new MySqlDataAdapter(command);

DataTable dt = new DataTable();

da.Fill(dt);

connection.Open();

MySqlDataReader reader = command.ExecuteReader();

if (reader.Read())

{

document.Open();

foreach (DataRow row in dt.Rows)

{

foreach (var item in row.ItemArray)

{

document.Add(new Paragraph(item.ToString()));

}

document.Add(new Paragraph(Environment.NewLine));

}

document.Close();

}

reader.Close();

connection.Close();

}

}

private void InfoAboutEquipment()

{

Document document = new Document();

PdfWriter.GetInstance(document, new System.IO.FileStream(@"C:\Users\ACER\Desktop\Equipment.pdf", System.IO.FileMode.Create));

using (MySqlConnection connection3 = new MySqlConnection(connectionString))

{

string query3 = "SELECT equipment_id, title, amount FROM equipment";

MySqlCommand command3 = new MySqlCommand(query3, connection3);

MySqlDataAdapter da = new MySqlDataAdapter(command3);

DataTable dt = new DataTable();

da.Fill(dt);

connection3.Open();

MySqlDataReader reader3 = command3.ExecuteReader();

if (reader3.Read())

{

document.Open();

foreach (DataRow row in dt.Rows)

{

foreach (var item in row.ItemArray)

{

document.Add(new Paragraph(item.ToString()));

}

document.Add(new Paragraph(Environment.NewLine));

}

document.Close();

}

reader3.Close();

connection3.Close();

}

}

}

}