form3.cs

这是一个图书馆管理用的简化系统

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Data.SqlClient;

namespace BMS

{
    public partial class Form3 : Form
    {
        public Form3()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            PrintDGV.Print_DataGridView(this.dataGridView1);
        }

        private void Form3_Load(object sender, EventArgs e)
        {//if(读者信息ToolStripMenuItem.)
            SqlConnection myCon = DB.getcon();
            myCon.Open();
            string sql = "select * from "+Value.tablename+";";
            SqlDataAdapter da = new SqlDataAdapter(sql,myCon);
            DataSet ds = new DataSet();
            da.Fill(ds);
            dataGridView1.DataSource = ds.Tables[0].DefaultView;

          //  MessageBox.Show("成功");
          //  SaveFileDialog();


        }
    }
}