进价参考.cs

用C#实现超市的管理

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using Yewucheng;
using System.IO;
namespace Myproject
{
    public partial class 进价参考 : Form
    {
        wang shanchu = new wang();
        public 进价参考()
        {
            InitializeComponent();
        }

        private void button9_Click(object sender, EventArgs e)
        {
            this.Close();
        }

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

        private void but2_Click(object sender, EventArgs e)
        {
            添加进货参考查询 mert = new 添加进货参考查询(this);
            mert.Show();
        }

      
        private void button4_Click(object sender, EventArgs e)
        {
            try
            {

                DataSet ds = shanchu.SelectMand("select * from SouXuanshanp ");
                this.dbgname8.DataSource = ds.Tables[0].DefaultView;

                shanchu.DeleteMand("delete SouXuanshanp where 商品编号='" + ds.Tables[0].Rows[0][0].ToString() + "'");


                DataSet da = shanchu.SelectMand("select * from SouXuanshanp ");
                this.dbgname8.DataSource = da.Tables[0].DefaultView;
            }
            catch(Exception )
            {
                MessageBox.Show("数据库里没有这行记录");
            
            }


        }

      
      
      

       
    }
}