GraduationDesign/find.cs

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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 GraduationDesign
{
    public partial class find : Form
    {
        int chaxunbiaoqian = 0;
        public static string IDselect = "游客";//用来记住被选中的车次
        public find()

        {
            InitializeComponent();


            
        }

        private void fiand_Load(object sender, EventArgs e)
        {
            if (login.quanxian == 0)
            {
                
                mydingdanitm.Enabled = false;
                myxinxiitm.Enabled = false;
                quxiaodingpiaoToolStripMenuItem.Enabled = false;

            }
            else //if (login.quanxian ==1)
            {
                quxiaodingpiaoToolStripMenuItem.Enabled = true;
                mydingdanitm.Enabled = true;
                myxinxiitm.Enabled = true;
            }
            
            groupBox1.Visible = true;
            groupBox2.Visible = false;
            dataGridView1.DataSource = null;
            this.Left = (int)((Screen.PrimaryScreen.Bounds.Width - this.Width) / 2);
            this.Top = (int)((Screen.PrimaryScreen.Bounds.Height - this.Height) / 2);
            this.tsp.Text = "欢迎 【 " + login.Username + " 】 使用本系统" + "  当前时间为：" + DateTime.Now.ToString("yyyy-MM-dd ") + DateTime.Now.ToLongTimeString();              //状态栏显示当前时间
           

        }

        private void fanhuixitongitm_Click(object sender, EventArgs e)
        {
            
            if (MessageBox.Show("确认【重新登录】吗？", "火车票购票系统",
                   MessageBoxButtons.OKCancel, MessageBoxIcon.Question) == DialogResult.OK)
            {
                login.quanxian = 0;