C#对Access数据库做的添加、删除、查找、修改的例子

    using System;
using System.Data;
using System.Data.OleDb;
using System.Collections;
using System.Windows.Forms;

namespace Race
{
/// <summary>
/// 数据库操作
/// </summary>
public class MyData
{
  private OleDbConnection conn;
  private OleDbCommand comm;

  public MyData()//用函数实现一个数据库联接
  {
   conn = new OleDbConnection(@"Provider='Microsoft.Jet.OLEDB.4.0';Data Source='" + Application.StartupPath + @"\data.mdb'");
  }

  /// <summary>
  /// 获取二级项目信息
  /// </summary>
  /// <param name="peid">一级项目ID</param>
  /// <returns>二级项目信息</returns>
  public DataTable Project_GetInfo()//从数据库中读取数据到da 再在内存中建立ds  用fill 来把da的数据填充到ds再返回ds 中的首行
  {
   try
   {
    OleDbDataAdapter da = new OleDbDataAdapter("select * from Project",conn);
    DataSet ds = new DataSet();
    da.Fill(ds);
  
    return ds.Tables[0];
   
   }
   catch
   {
    return null;
  
   }
  }

  /// <summary>
  /// 添加数据库记录
  /// </summary>
  /// <param name="info">信息数组</param>
  public void Project_InsertInfo(string[] info)
  {
   try
   {
    comm = new OleDbCommand("insert into [project] ([name],[multiple],[time],[delay],[loop],[music],[startmusic]) values ('"+info[0]+"','"+info[1]+"','"+info[2]+"','"+info[3]+"','"+info[4]+"','"+info[5]+"','"+info[6]+"')",conn);
    conn.Open();
    comm.ExecuteNonQuery();
   }
   catch
   {
    //MessageBox.Show("添加失败");
   }
   finally
   {
    conn.Close();
   }
  }

  /// <summary>
  /// 修改数据库记录
  /// </summary>
  /// <param name="info">信息数组</param>
  /// <param name="id">ID</param>
  public void Project_UpdateInfo(string[] info,string id)
  {
   try
   {
    comm = new OleDbCommand("update [project] set [name]='"+info[0]+"',[multiple]='"+info[1]+"',[time]='"+info[2]+"',[delay]='"+info[3]+"',[loop]='"+info[4]+"',[music]='"+info[5]+"',[startmusic]='"+info[6]+"' where id="+id,conn);
    conn.Open();
    comm.ExecuteNonQuery();
   }
   catch{}
   finally
   {
    conn.Close();
   }
  }

  /// <summary>
  /// 删除数据库记录
  /// </summary>
  /// <param name="info">信息数组</param>123
  public void Project_DeleteInfoByID(string id)
  {
   try
   { 
    comm = new OleDbCommand("delete from project where [id]="+id,conn);
    conn.Open();
    comm.ExecuteNonQuery();
   
   }
   catch{}
   finally
   {
    conn.Close();
   }
  }

}
}
转自百度知道：http://zhidao.baidu.com/question/45422612.html