c# dataGridView与access数据库及其增删查改导出报表等

         假如我们要写一个实验室设备管理的一个简单程序，用access数据库可以说是最简单便捷的选择了， Access 是Office里面的一个组件是office自带的数据库。

      比如说要做成这样的形式，有数据的查询，编辑，添加，删除，生成报表等功能。 先用winform创建一个界面，设计好表格的列属性，其中小组和使用状态是用的下拉列表，表格是dataGridView。

      

  主要代码及注释：

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;
using System.Data.OleDb;
//using Microsoft.Office.Interop.Word;
//using Microsoft.Office.Interop.Excel;
using System.Threading;

namespace ComputerManage
{
    public partial class Form1 : Form
    {
        OleDbConnection conn = new OleDbConnection("Data Source=" + System.Windows.Forms.Application.StartupPath + "\\config\\cinfor.mdb;Provider=Microsoft.Jet.OLEDB.4.0");
        Form2 dataEdit = new Form2();
       // int rowIndex = -1;
       // bool serchFlag = false;

        public Form1()
        {
            InitializeComponent();
            //初始化
            InitCombo();
            InitGridView();

        }
        //初始化下拉列表
        private void InitCombo()
        {
            this.comboGroup.Items.Add("全部");
            this.comboGroup.Items.Add("502");
            this.comboGroup.Items.Add("508");
            this.comboGroup.Items.Add("510");
            this.comboGroup.Items.Add("506");
            this.comboGroup.Items.Add("617");
            this.comboGroup.Items.Add("503");
            this.comboGroup.Items.Add("530");
            this.comboGroup.Items.Add("614");

            this.comboState.Items.Add("全部");
            this.comboState.Items.Add("使用中");
            this.comboState.Items.Add("停用");
        }
       
        //初始化gridview1
        private void InitGridView()
        {
            //不显示最后一行的空白行
            dataGridView1.AllowUserToAddRows = false;
            DataTable dt = new DataTable();
            string allInformation = "select * from detailInfor order by ID";
            dt = DataTableExcute(allInformation);
            dataGridView1.DataSource = dt;

        }
        //得到所选行索引
        public int getSelectedIndex()
        {
            int count = this.dataGridView1.Rows.Count;
            for (int i = 0; i < count - 1; i++)
            {
                if (dataGridView1.Rows[i].Selected == true)
                    return i;
            }
            return -1;   
        }
        //查询得到datatable
        public DataTable DataTableExcute(string cmdstr)
        {
            OleDbCommand cmd = new OleDbCommand(cmdstr, conn);
            OleDbDataAdapter dataAdapter = new OleDbDataAdapter(cmd);
            DataTable datatable = new DataTable();
            DataSet dataset = new DataSet();
            try
            {
                conn.Open();
                dataAdapter.Fill(dataset);
                if (dataset.Tables[0].Rows.Count > 0)
                {
                    datatable = dataset.Tables[0];
                }

            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.ToString());
            }
            finally
            {
                conn.Close();
                cmd.Dispose();
                dataAdapter.Dispose();
            }
            return datatable;

        }
        //对数据表的操作
        public bool DataSheetOperate(string cmdstr)
        {
            OleDbCommand cmd = new OleDbCommand(cmdstr, conn);
            try
            {
                conn.Open();
                cmd.ExecuteNonQuery();
            }
            catch
            {
                return false;
            }
            finally
            {