NetBarManageSystem/Form_hyxj.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.Windows.Forms;

namespace NetBarManageSystem_lihang
{
    
    public partial class Form_hyxj : Form
    {
        //定义全局变量。用于上机成功后，刷新上机信息
        public From_main xj;
        public Form_hyxj()
        {
            InitializeComponent();
        }

    


        private void timer_sjsj_Tick(object sender, EventArgs e)
        {
            this.txt_xjsj.Text = DateTime.Now + "";
        }

        private void cbo_jqbh_SelectedIndexChanged(object sender, EventArgs e)
        {
            ss();
        }


        public void ss()
        {
            //没有上机的机器信息
            if (this.cbo_jqbh.Text != "")
            {
                string sql2 = "select * from cardInfo as a, recordInfo as b where a.cardId=b.cardId and b.pcId=" + this.cbo_jqbh.Text + " and b.endTime is null";

                DataTable table_xjxx = sql_zsgc.cx(sql2);
                //绑定数据
                this.txt_hyh.Text = table_xjxx.Rows[0]["cardNumber"] + "";
                this.txt_sjsj.Text = table_xjxx.Rows[0]["beginTime"] + "";
                this.txt_cardId.Text = table_xjxx.Rows[0]["cardId"] + "";
            }
            else
            {
                MessageBox.Show("没有可用的下机信息！","系统提示");
                this.Close();//没有下机信息关闭窗口
            }
            
        }

        private void Form_hyxj_Shown(object sender, EventArgs e)
        {
            //查询可下机的机器编号