退货参考.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 退货参考 : Form
    {
        public 退货参考()
        {
            InitializeComponent();
        }

      
       

        private void button9_Click(object sender, EventArgs e)
        {


            this.Close();


        }

        private void button6_Click(object sender, EventArgs e)
        {
             添加退货参考 mer = new 添加退货参考(this);
            mer.Show();
        }

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

        private void button1_Click(object sender, EventArgs e)
        {

            try
            {
                wang shanchu = new wang();
                DataSet ds = shanchu.SelectMand("select * from Tuihousp ");
                this.dbgname2.DataSource = ds.Tables[0].DefaultView;

                shanchu.DeleteMand("delete Tuihousp where id=" + ds.Tables[0].Rows[0][0].ToString() + "");


                DataSet da = shanchu.SelectMand("select * from Tuihousp ");
                this.dbgname2.DataSource = ds.Tables[0].DefaultView;

            }
            catch(Exception)
            {
                MessageBox.Show("数据库没有这行记录");
            
            }

          




        }

       
    }
}