电影登录记录管理系统4[历史查看] 加强完整版

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.Configuration;

using System.Data.SqlClient;

namespace 电影记录管理系统

{

public partial class FrmLog : Form

{

public FrmLog()

{

InitializeComponent();

}

//连接字符串，获取配置文件中的连接路径

static string connStr = ConfigurationManager.ConnectionStrings["str"].ConnectionString;

private void FrmLog_Load(object sender, EventArgs e)

{

//FrmLog log = new FrmLog();

//log.GetExitTime();

//将用户信息添加到DataGridView里面

//log.AddLog();

AddLog();

//将数据显示出来

ShowMsg();

}

public void AddLog()

{

string sql = "insert into Log(User_Name,Situation,Time)values(@User_Name,@Situation,@Time)";

if (Form2.Uid == "" || Form2.Situation == "" || Form2.Time.ToString() == "")

{

MessageBox.Show("数据不能为空！");

return;

}

//向数据表中插入数据

SqlParameter[] param = {

new SqlParameter("@User_Name",Form2.Uid),

new SqlParameter("@Situation",Form2.Situation),

new SqlParameter("@Time",Form2.Time)

};

//利用sql来获取connStr的连接字符串

SqlConnection conn = new SqlConnection(connStr);

//创建一个cmd对象

SqlCommand cmd = new SqlCommand(sql,conn);

//打开数据库

conn.Open();

cmd.Parameters.AddRange(param);//向cmd中添加参数

int n = cmd.ExecuteNonQuery();

//关闭数据库

conn.Close();

}

public void ShowMsg()

{

string show = "select Id,User_Name,Situation,Time from Log";

SqlConnection conn = new SqlConnection(connStr);

SqlCommand cmd = new SqlCommand(show,conn);

DataTable dt = new DataTable();

SqlDataAdapter sda = new SqlDataAdapter(cmd);

sda.Fill(dt);

dgvLog.DataSource = dt;

}

public void GetExitTime()

{

Form2.Time = DateTime.Now;

Form2.Situation = "退出";

}

private void btnExit_Click(object sender, EventArgs e)

{

//获取当前退出的时间

GetExitTime();

AddLog();

//直接退出系统

Application.Exit();

}

private void btnBack_Click(object sender, EventArgs e)

{

Form2 main = new Form2();

main.Show();

this.Hide();

}

}

}