C#²Ù×÷AccessÀà
         
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	using System;
using System.Data;
using System.Data.OleDb;
namespace AccessDb
{
    /**//// <summary>
    /// AccessDb µÄժҪ˵Ã÷£¬ÒÔÏÂÐÅÏ¢ÇëÍêÕû±£Áô
    /// ÇëÔÚÊý¾Ý´«µÝÍê±Ïºóµ÷ÓÃClose()·½·¨£¬¹Ø±ÕÊý¾ÝÁ´½Ó¡£
    /// </summary>
    public class AccessDbClass
    {
        ±äÁ¿ÉùÃ÷´¦#region ±äÁ¿ÉùÃ÷´¦
        public OleDbConnection Conn;
        public string ConnString;//Á¬½Ó×Ö·û´®
        #endregion
        ¹¹Ô캯ÊýÓëÁ¬½Ó¹Ø±ÕÊý¾Ý¿â#region ¹¹Ô캯ÊýÓëÁ¬½Ó¹Ø±ÕÊý¾Ý¿â
        /**//// <summary>
        /// ¹¹Ô캯Êý
        /// </summary>
        /// <param name="Dbpath">ACCESSÊý¾Ý¿â·¾¶</param>
        public AccessDbClass(string Dbpath)
        {
            ConnString = "Provider=Microsoft.Jet.OleDb.4.0;Data Source=";
            ConnString += Dbpath;
            Conn = new OleDbConnection(ConnString);
            Conn.Open();
        }
        /**//// <summary>
        /// ´ò¿ªÊý¾ÝÔ´Á´½Ó
        /// </summary>
        /// <returns></returns>
        public OleDbConnection DbConn()
        {
            Conn.Open();
            return Conn;
        }
        /**//// <summary>
        /// ÇëÔÚÊý¾Ý´«µÝÍê±Ïºóµ÷Óøú¯Êý£¬¹Ø±ÕÊý¾ÝÁ´½Ó¡£
        /// </summary>
        public void Close()
        {
            Conn.Close();
        }
        #endregion
        Êý¾Ý¿â»ù±¾²Ù×÷#region Êý¾Ý¿â»ù±¾²Ù×÷
        /**//// <summary>
        /// ¸ù¾ÝSQLÃüÁî·µ»ØÊý¾ÝDataTableÊý¾Ý±í,
        /// ¿ÉÖ±½Ó×÷ΪdataGridViewµÄÊý¾ÝÔ´
        /// </summary>
        /// <param name="SQL"></param>
        /// <returns></returns>
        public DataTable SelectToDataTable(string SQL)
        {
            OleDbDataAdapter adapter = new OleDbDataAdapter();
            OleDbCommand command = new OleDbCommand(SQL, Conn);
            adapter.SelectCommand = command;
            DataTable Dt = new DataTable();
            adapter.Fill(Dt);   
   
    
     
	
	
    
    
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