实例介绍
【实例简介】
用c#实现的教室/会议室预定系统, 数据存在本地txt文件
【实例截图】
【核心代码】
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Data.SqlClient;
using System.Security.AccessControl;
namespace chooseRoom
{
public partial class Form_index : Form
{
bool exits = false;
string userid = "";
string filename = "";
public Form_index()
{
InitializeComponent();
}
private void Form_index_Load(object sender, EventArgs e)
{
readAllFile();
List<string> initTimeList = new List<string>();
initTimeList.Add("...");
initTimeList.Add("08:00-10:00");
initTimeList.Add("10:00-12:00");
initTimeList.Add("12:00-14:00");
initTimeList.Add("14:00-16:00");
initTimeList.Add("16:00-18:00");
initTimeList.Add("18:00-20:00");
initTimeList.Add("20:00-22:00");
comboBox_time.DataSource = initTimeList;
string logname = "";
logname = System.Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments) "\\教室及会议室预约系统";
if (Directory.Exists(logname) == false)//如果不存在就创建file文件夹
{
Directory.CreateDirectory(logname);
}
logname = "\\roomItem.txt";
if (File.Exists(@logname) == false)
{
MessageBox.Show("感谢您使用 教室/会议室 预约系统！", "欢迎！");
File.Copy("roomItem.txt", logname);
}
List<string> initItemList = new List<string>();
try
{
FileStream fs = File.Open(logname, FileMode.Open, FileAccess.Read);
StreamReader sr = new StreamReader(fs, Encoding.UTF8);
String line;
while ((line = sr.ReadLine()) != null)
{
initItemList.Add(line.ToString());
}
fs.Close();
}
catch (Exception error)
{
Console.WriteLine(error.Message);
//Message返回异常对象中包含的错误信息
}
comboBox_item.DataSource = initItemList;
}
private void userClear()
{
textBox_username.Text = null;
textBox_usertel.Text = null;
textBox_userid.Text = null;
}
private void save_log()
{
if (textBox_username.Text.Length < 1 || textBox_usertel.Text.Length < 1 || textBox_userid.Text.Length < 1)
{
MessageBox.Show("申请人、申请人电话及申请人证件号不允许为空！", "警告！");
return;
}
else {
int time = 0;
if ("..." == comboBox_time.Text)
{
MessageBox.Show("请选择申请的时间段！", "警告！");
return;
}
else if ("08:00-10:00" == comboBox_time.Text) { time = 1; }
else if ("10:00-12:00" == comboBox_time.Text) { time = 2; }
else if ("12:00-14:00" == comboBox_time.Text) { time = 3; }
else if ("14:00-16:00" == comboBox_time.Text) { time = 4; }
else if ("16:00-18:00" == comboBox_time.Text) { time = 5; }
else if ("18:00-20:00" == comboBox_time.Text) { time = 6; }
else if ("20:00-22:00" == comboBox_time.Text) { time = 7; }
FileStream fs = null;
filename = System.Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments) "\\教室及会议室预约系统\\"
dateTimePicker_date.Value.ToString("yyyyMMdd") time.ToString() comboBox_item.Text ".smr";
Encoding encoder = Encoding.UTF8;
string content = "";
content = textBox_username.Text Environment.NewLine;
content = textBox_usertel.Text Environment.NewLine;
content = textBox_userid.Text Environment.NewLine;
byte[] bytes = encoder.GetBytes(content);
try
{
fs = File.OpenWrite(filename);
//设定书写的开始位置为文件的末尾
fs.Position = fs.Length;
//将待写入内容追加到文件末尾
fs.Write(bytes, 0, bytes.Length);
}
catch (Exception error)
{
Console.WriteLine(error.Message);
//Message返回异常对象中包含的错误信息
}
fs.Close();
MessageBox.Show("申请 教室/会议室 成功！", "申请完成！");
comboBox_time.SelectedIndex = 0;
userClear();
return;
}
}
private void button_fun_Click(object sender, EventArgs e)
{
if (exits)
{
if (textBox_userid.Text == userid)
{
try
{
File.Delete(@filename);
MessageBox.Show("已经成功撤销所选申请！", "撤销成功！");
comboBox_time.SelectedIndex = 0;
userClear();
}
catch (Exception error)
{
Console.WriteLine(error.Message);
//Message返回异常对象中包含的错误信息
}
}
else
{
MessageBox.Show("证件号不一致！", "撤销失败！");
}
}
else
{
save_log();
}
readAllFile();
return;
}
private void find_exist()
{
int time = 0;
if ("08:00-10:00" == comboBox_time.Text) { time = 1; }
else if ("10:00-12:00" == comboBox_time.Text) { time = 2; }
else if ("12:00-14:00" == comboBox_time.Text) { time = 3; }
else if ("14:00-16:00" == comboBox_time.Text) { time = 4; }
else if ("16:00-18:00" == comboBox_time.Text) { time = 5; }
else if ("18:00-20:00" == comboBox_time.Text) { time = 6; }
else if ("20:00-22:00" == comboBox_time.Text) { time = 7; }
filename = System.Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments) "\\教室及会议室预约系统\\"
dateTimePicker_date.Value.ToString("yyyyMMdd") time.ToString() comboBox_item.Text ".smr";
if (File.Exists(@filename))
{
exits = true;
textBox_username.Enabled = false;
textBox_usertel.Enabled = false;
//存在
button_fun.Text = "撤销申请";
}
else
{
exits = false;
textBox_username.Enabled = true;
textBox_usertel.Enabled = true;
//不存在
button_fun.Text = "申请";
}
if (exits)
{
try
{
FileStream fs = File.Open(filename, FileMode.Open, FileAccess.Read);
StreamReader sr = new StreamReader(fs, Encoding.UTF8);
String line;
int i = 0;
while ((line = sr.ReadLine()) != null)
{
switch (i)
{
case 0: textBox_username.Text = line.ToString(); break;
case 1: textBox_usertel.Text = line.ToString(); break;
case 2: userid = line.ToString(); break;
default: break;
}
i ;
}
fs.Close();
}
catch (Exception error)
{
Console.WriteLine(error.Message);
//Message返回异常对象中包含的错误信息
}
}
else
{
userClear();
}
return;
}
private void dateTimePicker_date_ValueChanged(object sender, EventArgs e)
{
find_exist();
}
private void comboBox_time_SelectedIndexChanged(object sender, EventArgs e)
{
find_exist();
}
private void comboBox_item_SelectedIndexChanged(object sender, EventArgs e)
{
find_exist();
}
private void readAllFile()
{
try
{
String path = System.Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments) "\\教室及会议室预约系统";
String thisFileName = "";
String msg = "";
var files = Directory.GetFiles(path, "*.smr");
int time = 0;
int i = path.Length-1;
foreach (var file in files)
{
thisFileName = file.ToString();
msg = thisFileName.Substring(i 2, 4)
"年" thisFileName.Substring(i 6, 2)
"月" thisFileName.Substring(i 8, 2) "日 ";
try
{
time = Convert.ToInt32(thisFileName.Substring(i 10, 1));
}
catch
{
break;
}
switch (time)
{
case 1: msg = "08:00-10:00 "; break;
case 2: msg = "10:00-12:00 "; break;
case 3: msg = "12:00-14:00 "; break;
case 4: msg = "14:00-16:00 "; break;
case 5: msg = "16:00-18:00 "; break;
case 6: msg = "18:00-20:00 "; break;
case 7: msg = "20:00-22:00 "; break;
default: break;
}
if (time > 0) { msg = thisFileName.Substring(i 11, thisFileName.Length - (i 11) - 4) Environment.NewLine; }
}
textBox_log.Text = "已借用教室：" Environment.NewLine msg;
}
catch (Exception error)
{
Console.WriteLine(error.Message);
//Message返回异常对象中包含的错误信息
}
}
}
}
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