机票预订系统课程设计报告(18)

try

{

conn.Close();

}

catch { return; }

// MyCommand.ExecuteNonQuery();

// conn.Close();

// MessageBox.Show("成功", "提示", MessageBoxButtons.OK, rmation);

// SqlConnection conn = new SqlConnection(MyConn);

}

private void dataGridView1_CellContentClick(object sender, DataGridViewCellEventArgs e)

{

}

private void Form4_Load(object sender, EventArgs e)

{

string MyConn = ;

conn = new SqlConnection(MyConn);

}

private void button2_Click(object sender, EventArgs e)

{

string MyInsert = "delete from 订单信息表where 订单号='" + textBox1.Text + "'";

SqlCommand MyCommand = new SqlCommand(MyInsert, conn);

conn.Open();

MyCommand.ExecuteNonQuery();

conn.Close();

MessageBox.Show("删除成功");

}

private void button3_Click(object sender, EventArgs e)

{

Form5 f = new Form5();

f.Show();

}

}

}

using System;

using

using ponentModel;

using System.Data;

using System.Drawing;

using System.Text;

using

using

namespace WindowsApplication2

{

public partial class Form5 : Form

{

public SqlConnection conn;

public Form5()

{

InitializeComponent();

}

private void Form5_Load(object sender, EventArgs e)

{

string MyConn = ;

conn = new SqlConnection(MyConn);

}

private void textBox1_TextChanged(object sender, EventArgs e)

{

}

private void button1_Click(object sender, EventArgs e)

{

string rnum = textBox1.Text;

string num = Form4.f.toos();

搜索“diyifanwen.net”或“第一范文网”即可找到本站免费阅读全部范文。收藏本站方便下次阅读，第一范文网，提供最新高中教育机票预订系统课程设计报告(18)全文阅读和word下载服务。