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网吧基础系统
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 System.Data.SqlClient;
namespace WB
{
public partial class huiyuanxiaji : Form
{
public huiyuanxiaji()
{
InitializeComponent();
}
private void huiyuanxiaji_Load(object sender, EventArgs e)
{
this.xiaji.Items.Clear();
SqlConnection conn = DBwangba.getConn();
conn.Open();
if (conn.State == ConnectionState.Open)
{
string sql = "select * from pcInfo where PCUse=1";
SqlCommand cmd = new SqlCommand(sql, conn);
SqlDataReader rd = cmd.ExecuteReader();
while (rd.Read())
{
string pcid = rd[0].ToString();
this.xiaji.Items.Add(pcid);
}
if (xiaji.Items.Count > 0)
{
this.xiaji.SelectedIndex = this.xiaji.Items.Count - 1;
}
rd.Close();
conn.Close();
}
else
{
MessageBox.Show("连接失败", "连接提示", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
DateTime dt = DateTime.Now;
this.downtime.Text = dt.ToString();
}
private void btn_quxiao_Click(object sender, EventArgs e)
{
this.Hide();
}
private void xiaji_SelectedIndexChanged(object sender, EventArgs e)
{
string str = this.xiaji.Text;
SqlConnection conn = DBwangba.getConn();
conn.Open();
if (conn.State == ConnectionState.Open)
{
string sql = "select recordId,cardNumber,a.PCId,a.beginTime from recordInfo as a join cardInfo as b on a.cardId = b.cardId where endTime is null and pcid=" str;
SqlCommand cmd = new SqlCommand(sql, conn);
SqlDataReader reader = cmd.ExecuteReader();
if (reader.Read())
{
string cardNumber = reader[1].ToString();
string beginTime = reader[3].ToString();
this.name.Text = cardNumber;
this.time.Text = beginTime;
reader.Close();
conn.Close();
DateTime bt = Convert.ToDateTime(this.time.Text); //获取上机时间
DateTime et = DateTime.Now; // 获取下机时间 当前系统时间
TimeSpan ts = Convert.ToDateTime(et).Subtract(bt); // 系统时间减去上机时间
int seconds = (int)ts.TotalSeconds;
// 得到连个时间间隔的总秒数(将时间转换为秒)
int minutes = seconds / 60; // 得到分钟数
if (seconds % 60 > 0)
{
minutes = 1; // 如果描述不能被60整数，则分钟数加1
}
int hours = minutes / 60; // 得到小时数
if (minutes % 60 > 0)
{
hours = 1; // 如果分钟数不能被60整除，则小时数加1
}
int i = hours * 15;
string a = string.Format("{0}", hours);
this.shangjiyongshi.Text = a;
string b = string.Format("{0}", i);
this.feiyong.Text = b;
}
else
{
MessageBox.Show("查找不到结果", "提示", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
}
}
private void btn_xiaji_Click(object sender, EventArgs e)
{
string str1 = this.xiaji.Text;
string str2 = this.name.Text;
string str3 = this.time.Text;
string str4 = this.downtime.Text;
string str5 = this.shangjiyongshi.Text;
string str6 = this.feiyong.Text;
SqlConnection conn = DBwangba.getConn();
conn.Open();
if (conn.State == ConnectionState.Open)
{
SqlCommand cmd = new SqlCommand();
cmd.Connection = conn;
cmd.CommandText = string.Format("select cardBalance from cardInfo where cardNumber = '{0}'", str2);
SqlDataReader rd = cmd.ExecuteReader();
if (rd.Read())
{
string cardBalance = rd[0].ToString();
rd.Close();
if (int.Parse(cardBalance) < int.Parse(str6))
{
MessageBox.Show("您的余额不足，请充值", "提示", MessageBoxButtons.OK, MessageBoxIcon.Error);
chongzhi cz = new chongzhi();
cz.Show();
}
else
{
string sql = string.Format("update recordInfo set endTime ='{0}',free='{1}' where pcid ={2} and endtime is null", str4, str6,str1);
int rz = DBwangba.BaseExec(sql);
string sql2 = string.Format("update PCInfo set PCUse = 0 where PCId = '{0}'", str1);
int rx = DBwangba.BaseExec(sql2);
string sql3 = string.Format("update cardInfo set cardBalance = cardBalance - '{0}' where cardNumber= '{1}'", str6, str2);
int rc = DBwangba.BaseExec(sql3);
if (rz > 0 && rx > 0 && rc > 0)
{
MessageBox.Show("下机成功", "提示", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
this.Hide();
}
else
{
MessageBox.Show("下机失败", "提示", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
}
}
}
conn.Close();
}
}
private void timer1_Tick(object sender, EventArgs e)
{
DateTime dt = DateTime.Now;
this.downtime.Text = dt.ToString();
}
private void time_TextChanged(object sender, EventArgs e)
{
}
private void downtime_TextChanged(object sender, EventArgs e)
{
}
}
}