허술한 도서 관리 프로그램
국비교육 프로그래밍을 들으면서 C#과 winform을 잘 몰랐을 때 만든 아주 허술한 프로그램입니다.
이 당시에 프로그래밍이란 걸 배운 지 1개월 약간 넘은 시기라서 만드는 데 5시간 넘게 걸린 것 같습니다.
Winform을 이용한 원격 수업 과제를 제출해야 해서 아주 단순한 기능 구현만 했습니다.
코딩을 할때 정렬 부분을 노가다로 처리한 것 / 구조 등 여러가지 많이 아쉽네요.
초보자가 작성한 코드라서 참고할 만한 부분이 있으지는 모르겠지만 필요하시면 쓰셔도 됩니다.
BookData.cs
namespace LibraryManagement
{
public class BookData
{
public BookInfo BookInfo;
public BookData()
{
BookInfo = new BookInfo();
}
}
}
Program.cs
using System;
using System.Windows.Forms;
namespace LibraryManagement
{
internal static class Program
{
/// <summary>
/// 해당 애플리케이션의 주 진입점입니다.
/// </summary>
[STAThread]
static void Main()
{
BookDataManage.instance.BookDataLoing();
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(new Main());
}
}
}
Main.cs
using System;
using System.Windows.Forms;
namespace LibraryManagement
{
public partial class Main : Form
{
public Main()
{
InitializeComponent();
}
private void registrationButton_Click(object sender, EventArgs e)
{
this.Enabled = false;
this.Opacity = 0.2;
Registration registration = new Registration(this);
registration.Show();
}
private void button1_Click(object sender, EventArgs e)
{
this.Enabled = false;
this.Opacity = 0.2;
Correction correction = new Correction(this);
correction.Show();
}
private void button2_Click(object sender, EventArgs e)
{
this.Enabled = false;
this.Opacity = 0.2;
Remove remove = new Remove(this);
remove.Show();
}
private void Main_Load(object sender, EventArgs e)
{
}
private void button3_Click(object sender, EventArgs e)
{
Environment.Exit(0);
}
private void Serach_Click(object sender, EventArgs e)
{
this.Enabled = false;
this.Opacity = 0.2;
Serach serach = new Serach(this);
serach.Show();
}
private void button4_Click(object sender, EventArgs e)
{
var check = MessageBox.Show("저장된 자료를 초기화 하시겠습니까?", "확인", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
if (check == DialogResult.Yes)
{
BookDataManage.instance.ReSetData();
}
MessageBox.Show("자료가 초기화 되었습니다.", "확인");
}
private void label2_Click(object sender, EventArgs e)
{
}
}
}
Serach.cs
using System;
using System.Collections.Generic;
using System.Data;
using System.Windows.Forms;
namespace LibraryManagement
{
public partial class Serach : Form
{
public Main main;
public Dictionary<string, BookData> dicBookData = new Dictionary<string, BookData>();
public List<BookData> listSort = new List<BookData>();
DataTable table = new DataTable();
public Serach(Main main)
{
this.main = main;
InitializeComponent();
table.Columns.Add("ISBN", typeof(Int64));
table.Columns.Add("도서명", typeof(string));
table.Columns.Add("출판사", typeof(string));
table.Columns.Add("분류", typeof(string));
table.Columns.Add("가격", typeof(Int32));
table.Columns.Add("등록일", typeof(DateTime));
this.dicBookData = BookDataManage.instance.dicBookData;
foreach (KeyValuePair<string, BookData> data in this.dicBookData)
{
table.Rows.Add($"{Int64.Parse(data.Value.BookInfo.ISBN)}",
$"{data.Value.BookInfo.BookName}",
$"{data.Value.BookInfo.Publisher}",
$"{data.Value.BookInfo.Sort}",
$"{data.Value.BookInfo.Price}",
$"{data.Value.BookInfo.RegDAta}");
}
dataGridView1.DataSource = table;
foreach (KeyValuePair<string, BookData> data in this.dicBookData)
{
this.listSort.Add(data.Value);
}
this.comboBox2.Enabled = false;
this.comboBox3.Enabled = false;
this.SerachOK.Enabled = false;
}
private void OUT_Click(object sender, EventArgs e)
{
main.Opacity = 1;
main.Enabled = true;
this.Close();
}
private void comboBox2_SelectedIndexChanged(object sender, EventArgs e)
{
this.comboBox3.Enabled = true;
}
private void SerachOK_Click(object sender, EventArgs e)
{
((DataTable)dataGridView1.DataSource).Rows.Clear();
dataGridView1.Refresh();
string com1 = string.Format(this.comboBox1.SelectedItem.ToString());
string com2 = string.Format(this.comboBox2.SelectedItem.ToString());
string com3 = string.Format(this.comboBox3.SelectedItem.ToString());
if (com1 == "등록날짜")
{
if (com2 == "버블정렬")
{
if (com3 == "오름차순")
{
for (int i = 0; i < this.listSort.Count - 1; i++)
{
for (int j = i + 1; j < this.listSort.Count; j++)
{
if (this.listSort[i].BookInfo.RegDAta > this.listSort[j].BookInfo.RegDAta)
{
BookData temp;
temp = listSort[i];
listSort[i] = listSort[j];
listSort[j] = temp;
}
}
}
}
else if (com3 == "내림차순")
{
for (int i = 0; i < this.listSort.Count - 1; i++)
{
for (int j = i + 1; j < this.listSort.Count; j++)
{
if (this.listSort[i].BookInfo.RegDAta < this.listSort[j].BookInfo.RegDAta)
{
BookData temp;
temp = listSort[i];
listSort[i] = listSort[j];
listSort[j] = temp;
}
}
}
}
}
else if (com2 == "선택정렬")
{
if (com3 == "오름차순")
{
for (int i = 0; i < this.listSort.Count; i++)
{
BookData temp;
int index = i;
for (int j = i + 1; j < this.listSort.Count; j++)
{
if (this.listSort[j].BookInfo.RegDAta < this.listSort[index].BookInfo.RegDAta)
{
index = j;
}
}
if (index == i)
{
continue;
}
temp = this.listSort[index];
this.listSort[index] = this.listSort[i];
this.listSort[i] = temp;
}
}
else if (com3 == "내림차순")
{
for (int i = 0; i < this.listSort.Count; i++)
{
BookData temp;
int index = i;
for (int j = i + 1; j < this.listSort.Count; j++)
{
if (this.listSort[j].BookInfo.RegDAta > this.listSort[index].BookInfo.RegDAta)
{
index = j;
}
}
if (index == i)
{
continue;
}
temp = this.listSort[index];
this.listSort[index] = this.listSort[i];
this.listSort[i] = temp;
}
}
}
else if (com2 == "퀵정렬")
{
if (com3 == "오름차순")
{
this.listSort = QuickSort1Date(this.listSort, 0, listSort.Count - 1);
}
else if (com3 == "내림차순")
{
this.listSort = QuickSort2Date(this.listSort, 0, listSort.Count - 1);
}
}
}
else if (com1 == "가격")
{
if (com2 == "버블정렬")
{
if (com3 == "오름차순")
{
for (int i = 0; i < this.listSort.Count - 1; i++)
{
for (int j = i + 1; j < this.listSort.Count; j++)
{
if (this.listSort[i].BookInfo.Price > this.listSort[j].BookInfo.Price)
{
BookData temp;
temp = listSort[i];
listSort[i] = listSort[j];
listSort[j] = temp;
}
}
}
}
else if (com3 == "내림차순")
{
for (int i = 0; i < this.listSort.Count - 1; i++)
{
for (int j = i + 1; j < this.listSort.Count; j++)
{
if (this.listSort[i].BookInfo.Price < this.listSort[j].BookInfo.Price)
{
BookData temp;
temp = listSort[i];
listSort[i] = listSort[j];
listSort[j] = temp;
}
}
}
}
}
else if (com2 == "선택정렬")
{
if (com3 == "오름차순")
{
BookData temp;
int index;
for (int i = 0; i < this.listSort.Count; i++)
{
index = i;
for (int j = i + 1; j < this.listSort.Count; j++)
{
if (this.listSort[j].BookInfo.Price < this.listSort[index].BookInfo.Price)
{
index = j;
}
}
if (index == i)
{
continue;
}
temp = this.listSort[index];
this.listSort[index] = this.listSort[i];
this.listSort[i] = temp;
}
}
else if (com3 == "내림차순")
{
BookData temp;
int index;
for (int i = 0; i < this.listSort.Count; i++)
{
index = i;
for (int j = i + 1; j < this.listSort.Count; j++)
{
if (this.listSort[j].BookInfo.Price > this.listSort[index].BookInfo.Price)
{
index = j;
}
}
if (index == i)
{
continue;
}
temp = this.listSort[index];
this.listSort[index] = this.listSort[i];
this.listSort[i] = temp;
}
}
}
else if (com2 == "퀵정렬")
{
if (com3 == "오름차순")
{
this.listSort = QuickSort1Price(this.listSort, 0, listSort.Count - 1);
}
else if (com3 == "내림차순")
{
this.listSort = QuickSort2Price(this.listSort, 0, listSort.Count - 1);
}
}
}
foreach (BookData data in this.listSort)
{
table.Rows.Add($"{Int64.Parse(data.BookInfo.ISBN)}",
$"{data.BookInfo.BookName}",
$"{data.BookInfo.Publisher}",
$"{data.BookInfo.Sort}",
$"{data.BookInfo.Price}",
$"{data.BookInfo.RegDAta}");
}
dataGridView1.DataSource = table;
}
public List<BookData> QuickSort1Date(List<BookData> list, int start, int end)
{
int startBase = start;
int endBase = end;
BookData temp;
DateTime pivot = list[endBase].BookInfo.RegDAta;
while (true)
{
while (pivot >= list[start].BookInfo.RegDAta && start < end) start++;
while (pivot <= list[end].BookInfo.RegDAta && start < end) end--;
if (start >= end)
break;
temp = list[start];
list[start] = list[end];
list[end] = temp;
}
temp = list[endBase];
list[endBase] = list[start];
list[start] = temp;
if (startBase < start)
list = QuickSort1Date(list, startBase, start - 1);
if (endBase > end)
list = QuickSort1Date(list, start + 1, endBase);
return list;
}
public List<BookData> QuickSort2Date(List<BookData> list, int start, int end)
{
int startBase = start;
int endBase = end;
BookData temp;
DateTime pivot = list[endBase].BookInfo.RegDAta;
while (true)
{
while (pivot <= list[start].BookInfo.RegDAta && start < end) start++;
while (pivot >= list[end].BookInfo.RegDAta && start < end) end--;
if (start >= end)
break;
temp = list[start];
list[start] = list[end];
list[end] = temp;
}
temp = list[endBase];
list[endBase] = list[start];
list[start] = temp;
if (startBase < start)
list = QuickSort2Date(list, startBase, start - 1);
if (endBase > end)
list = QuickSort2Date(list, start + 1, endBase);
return list;
}
public List<BookData> QuickSort1Price(List<BookData> list, int start, int end)
{
int startBase = start;
int endBase = end;
BookData temp;
int pivot = list[endBase].BookInfo.Price;
while (true)
{
while (pivot >= list[start].BookInfo.Price && start < end) start++;
while (pivot <= list[end].BookInfo.Price && start < end) end--;
if (start >= end)
break;
temp = list[start];
list[start] = list[end];
list[end] = temp;
}
temp = list[endBase];
list[endBase] = list[start];
list[start] = temp;
if (startBase < start)
list = QuickSort1Price(list, startBase, start - 1);
if (endBase > end)
list = QuickSort1Price(list, start + 1, endBase);
return list;
}
public List<BookData> QuickSort2Price(List<BookData> list, int start, int end)
{
int startBase = start;
int endBase = end;
BookData temp;
int pivot = list[endBase].BookInfo.Price;
while (true)
{
while (pivot <= list[start].BookInfo.Price && start < end) start++;
while (pivot >= list[end].BookInfo.Price && start < end) end--;
if (start >= end)
break;
temp = list[start];
list[start] = list[end];
list[end] = temp;
}
temp = list[endBase];
list[endBase] = list[start];
list[start] = temp;
if (startBase < start)
list = QuickSort2Price(list, startBase, start - 1);
if (endBase > end)
list = QuickSort2Price(list, start + 1, endBase);
return list;
}
private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
this.comboBox2.Enabled = true;
}
private void dataGridView1_MouseClick(object sender, MouseEventArgs e)
{
}
private void dataGridView1_CellContentDoubleClick(object sender, DataGridViewCellEventArgs e)
{
}
private void comboBox3_SelectedIndexChanged(object sender, EventArgs e)
{
this.SerachOK.Enabled = true;
}
}
}
BookDataManage.cs
using System;
using System.Collections.Generic;
using System.IO;
using System.Text;
using System.Threading.Tasks;
using Newtonsoft.Json;
namespace LibraryManagement
{
public sealed class BookDataManage
{
public static readonly BookDataManage instance = new BookDataManage();
public Dictionary<string, BookData> dicBookData = new Dictionary<string, BookData>();
private BookDataManage()
{
}
public void BookDataLoing()
{
if (File.Exists("./book_data.json"))
{
string json = File.ReadAllText("./book_data.json");
this.dicBookData = JsonConvert.DeserializeObject<Dictionary<string, BookData>>(json);
}
else
{
}
}
public void SaveBookData()
{
string json = JsonConvert.SerializeObject(this.dicBookData);
File.WriteAllText("./book_data.json", json);
}
public void ReSetData()
{
this.dicBookData.Clear();
string json = JsonConvert.SerializeObject(this.dicBookData);
File.WriteAllText("./book_data.json", json);
}
}
}
BookInfo.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace LibraryManagement
{
public class BookInfo
{
public string ISBN { get; set; }
public string BookName { get; set; }
public string Publisher { get; set; }
public string Sort { get; set; }
public int Price { get; set; }
public DateTime RegDAta { get; set; }
}
}
Correction.cs
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;
namespace LibraryManagement
{
public partial class Correction : Form
{
public Main main;
public Correction(Main main)
{
this.main = main;
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
if (BookDataManage.instance.dicBookData.TryGetValue(ISBNTextBook.Text, out BookData data))
{
this.BookNameTextBook.Text = data.BookInfo.BookName;
this.PublisherTextBook.Text = data.BookInfo.Publisher;
this.SeletSortLable.Text = data.BookInfo.Sort;
this.PriceTextBook.Text = data.BookInfo.Price.ToString();
this.Search.Enabled = false;
this.ISBNTextBook.Enabled = false;
this.groupBox1.Enabled = true;
}
else
{
MessageBox.Show("해당 값이 없습니다.", "수정 불가");
}
}
private void OUT_Click(object sender, EventArgs e)
{
main.Opacity = 1;
main.Enabled = true;
this.Close();
}
private void button2_Click(object sender, EventArgs e)
{
bool Check = this.ISBNTextBook.Text != "" && this.BookNameTextBook.Text != "" && this.PublisherTextBook.Text != "선택하세요"
&& this.PriceTextBook.Text != "" && int.TryParse(this.PriceTextBook.Text, out int result);
if (Check)
{
BookData bookData = new BookData();
bookData.BookInfo.ISBN = this.ISBNTextBook.Text;
bookData.BookInfo.BookName = this.BookNameTextBook.Text;
bookData.BookInfo.Publisher = this.PublisherTextBook.Text;
bookData.BookInfo.Sort = this.SeletSortLable.Text;
bookData.BookInfo.Price = Convert.ToInt32(this.PriceTextBook.Text);
bookData.BookInfo.RegDAta = DateTime.Now;
BookDataManage.instance.dicBookData.Remove(bookData.BookInfo.ISBN);
BookDataManage.instance.dicBookData.Add(bookData.BookInfo.ISBN, bookData);
BookDataManage.instance.SaveBookData();
MessageBox.Show($"수정되었습니다.\n ISBN : {bookData.BookInfo.ISBN} \n 책이름 : {bookData.BookInfo.BookName}\n " +
$"출판사 : {bookData.BookInfo.Publisher}\n 분류 : {bookData.BookInfo.Sort}\n 가격 : {bookData.BookInfo.Price} \n 등록일자 : {bookData.BookInfo.RegDAta} ", "확인창");
this.ISBNTextBook.Text = "";
this.BookNameTextBook.Text = "";
this.PublisherTextBook.Text = "";
this.SeletSortLable.Text = "선택하세요";
this.PriceTextBook.Text = "";
this.groupBox1.Enabled = false;
this.Search.Enabled = true;
this.ISBNTextBook.Enabled = true;
}
else
{
MessageBox.Show("빈공간/분류/가격을 확인해주세요", "등록 오류");
}
}
private void SortComboBox_SelectedIndexChanged(object sender, EventArgs e)
{
ComboBox cb = (ComboBox)sender;
this.SeletSortLable.Text = cb.SelectedItem.ToString();
}
}
}
Remove.cs
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;
namespace LibraryManagement
{
public partial class Remove : Form
{
public Main main;
public Remove(Main main)
{
this.main = main;
InitializeComponent();
}
private void Search_Click(object sender, EventArgs e)
{
if (BookDataManage.instance.dicBookData.TryGetValue(ISBNTextBook.Text, out BookData data))
{
this.BookNameTextBook.Text = data.BookInfo.BookName;
this.PublisherTextBook.Text = data.BookInfo.Publisher;
this.SeletSortLable.Text = data.BookInfo.Sort;
this.PriceTextBook.Text = data.BookInfo.Price.ToString();
this.RemoveButton.Enabled = true;
}
else
{
MessageBox.Show("해당 값이 없습니다.", "수정 불가");
}
}
private void Out_Click(object sender, EventArgs e)
{
main.Opacity = 1;
main.Enabled = true;
this.Close();
}
private void RemoveButton_Click(object sender, EventArgs e)
{
const string message = "정말 삭제하시겠습니까?";
const string caption = "확인 메시지";
var check = MessageBox.Show(message, caption,MessageBoxButtons.YesNo,MessageBoxIcon.Question);
if (check == DialogResult.Yes)
{
bool Check = this.ISBNTextBook.Text != "" && this.BookNameTextBook.Text != "" && this.PublisherTextBook.Text != "선택하세요"
&& this.PriceTextBook.Text != "" && int.TryParse(this.PriceTextBook.Text, out int result);
if (Check)
{
BookData bookData = new BookData();
bookData.BookInfo.ISBN = this.ISBNTextBook.Text;
bookData.BookInfo.BookName = this.BookNameTextBook.Text;
bookData.BookInfo.Publisher = this.PublisherTextBook.Text;
bookData.BookInfo.Sort = this.SeletSortLable.Text;
bookData.BookInfo.Price = Convert.ToInt32(this.PriceTextBook.Text);
bookData.BookInfo.RegDAta = DateTime.Now;
BookDataManage.instance.dicBookData.Remove(bookData.BookInfo.ISBN);
BookDataManage.instance.SaveBookData();
this.ISBNTextBook.Text = "";
this.BookNameTextBook.Text = "";
this.PublisherTextBook.Text = "";
this.SeletSortLable.Text = "선택하세요";
this.PriceTextBook.Text = "";
this.RemoveButton.Enabled = false;
}
else
{
MessageBox.Show("해당 책을 찾을 수 없습니다.", "오류");
}
}
}
}
}
