一、数据库的建立

在fiber_yy数据库下创建yy_textile_record表
在这里插入图片描述

可以先手动填入几条数据信息

初始数据库信息
第一条数据的username是空格不是null
number为织物的品号(唯一的)
stock为出货量
username为哪个账号
time为出货时间
在这里插入图片描述

二、页面的完善

登录注册页面我就不演示了，前几篇博文也都有介绍

flow_query流水查询页面完善
在这里插入图片描述

三、代码实现

flow_query流水查询页面

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Data.OleDb;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Data.Sql;
using System.Data.SqlClient;
namespace fiber_yy
{
    
    
    public partial class flow_query : Form
    {
    
    
        private DataSet dsall;
        public string constr = "server=CY-20190824RMES;Initial Catalog=fiber_yy;User ID=sa;pwd=beyond";
        private SqlDataAdapter mDataAdapter;

        public flow_query()
        {
    
    
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
    
    
            try
            {
    
    
                SqlConnection conn = new SqlConnection(constr);
                conn = new SqlConnection(constr);
               
                mDataAdapter = new SqlDataAdapter("SELECT username AS '用户',sex AS '性别',phone AS '手机号',time AS '登录时间' FROM yy_user_record", conn);

                dsall = new DataSet();
                mDataAdapter.Fill(dsall, "hard");
                MessageBox.Show(dsall.ToString());
                dataGridView1.DataSource = dsall.Tables["hard"];
            }
            catch
            {
    
    
                MessageBox.Show("读取失败");
            }
        }

        private void button2_Click(object sender, EventArgs e)
        {
    
    
            string account = textBox1.Text;
            try
            {
    
    
                SqlConnection conn = new SqlConnection(constr);
                conn = new SqlConnection(constr);
               
                mDataAdapter = new SqlDataAdapter("SELECT username AS '用户',sex AS '性别',phone AS '手机号',time AS '登录时间' FROM yy_user_record WHERE username='" + account + "'", conn);

                dsall = new DataSet();
                mDataAdapter.Fill(dsall, "hard");
                dataGridView1.DataSource = dsall.Tables["hard"];
            }
            catch
            {
    
    
                MessageBox.Show("读取失败");
            }



            /*SqlConnection conn = new SqlConnection(constr);
            conn = new SqlConnection(constr);

            
            mDataAdapter1 = new SqlDataAdapter("select * from yy_user_record) where username='" + account + "'", conn);
            MessageBox.Show("-----");
            dsall1 = new DataSet();
            mDataAdapter1.Fill(dsall1, "hard");
            MessageBox.Show(dsall1.ToString());
            dataGridView1.DataSource = dsall1.Tables["hard"];*/

        }

        private void button3_Click(object sender, EventArgs e)
        {
    
    
            try
            {
    
    
                SqlConnection conn = new SqlConnection(constr);
                conn = new SqlConnection(constr);

                mDataAdapter = new SqlDataAdapter("SELECT username AS '用户',number AS '纤维品号',stock AS '取货数量',time AS '出货时间' FROM yy_textile_record", conn);

                dsall = new DataSet();
                mDataAdapter.Fill(dsall, "hard");
                MessageBox.Show(dsall.ToString());
                dataGridView2.DataSource = dsall.Tables["hard"];
            }
            catch
            {
    
    
                MessageBox.Show("读取失败");
            }
        }

        private void button4_Click(object sender, EventArgs e)
        {
    
    
            string number = textBox2.Text;
            try
            {
    
    
                SqlConnection conn = new SqlConnection(constr);
                conn = new SqlConnection(constr);

                mDataAdapter = new SqlDataAdapter("SELECT username AS '用户',number AS '纤维品号',stock AS '取货数量',time AS '出货时间' FROM yy_textile_record WHERE number='" + number + "'", conn);

                dsall = new DataSet();
                mDataAdapter.Fill(dsall, "hard");
                dataGridView2.DataSource = dsall.Tables["hard"];
            }
            catch
            {
    
    
                MessageBox.Show("读取失败");
            }
        }
    }
}