private void button1_Click(object sender, EventArgs e)
{
string sqlstr = ("server=.;database=客房管理;uid=sa;pwd=sa");
SqlConnection conn = new SqlConnection(sqlstr);
//定义连接对象con
conn.Open();//打开数据库
string sql = "Delete From 客户信息 where 客房号 = '" + textBox1.Text + "'";
SqlCommand cmd = new SqlCommand(sql, conn);
cmd.ExecuteNonQuery();
MessageBox.Show("退房成功");
conn.Close();
string sqlstr1 = ("server=.;database=客房管理;uid=sa;pwd=sa");
SqlConnection conn1 = new SqlConnection(sqlstr1);
//定义连接对象con
conn1.Open();//打开数据库
string sql1 = "Update 客房信息 Set 房间信息 = '空' where 客房号 like '" + textBox1.Text + "'";
SqlCommand cmd1 = new SqlCommand(sql1, conn1);
cmd1.ExecuteNonQuery();
MessageBox.Show("客户" + textBox2.Text + "您已退房成功，请结账！");;
conn1.Close();
Form mf = new 客户结账();
mf.Show();
}
private void button5_Click(object sender, EventArgs e)
{
Form f = new 客户结账();
f.Show();
}
private void button5_Click(object sender, EventArgs e)
{
Form f = new 客户结账();
f.Show();
}