set_port.cs

铁路电务信号设备维修记录系统 c#+acce

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Data.OleDb;

namespace D_Equipment_Mis
{
    public partial class set_port : Form
    {
        public set_port()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            if (cbo_port.Text == "")
            {
                MessageBox.Show("请选择端口号!");
                cbo_port.Focus();
                return;
            }
            string del_str = "delete from zd_port";
            OleDbConnection myconn = new OleDbConnection(data.connstr);
            OleDbCommand del_cmd = new OleDbCommand(del_str, myconn);
            try
            {
                myconn.Open();
                del_cmd.ExecuteNonQuery();
            }
            catch (Exception t)
            {
                MessageBox.Show(t.ToString());
            }
            myconn.Close();
            string ins_str = "insert into zd_port (com) values (@icom)";
            OleDbCommand ins_cmd = new OleDbCommand(ins_str, myconn);
            ins_cmd.Parameters.Add("icom", OleDbType.VarChar).Value = cbo_port.Text;
            try
            {
                myconn.Open();
                if ((int)ins_cmd.ExecuteNonQuery() == 1)
                    MessageBox.Show("保存成功");
            }
            catch (Exception t)
            {
                MessageBox.Show(t.ToString());
            }
            myconn.Close();
        }

        private void button2_Click(object sender, EventArgs e)
        {
            Close();
        }
    }
}