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此处列举Conn类(数据访问类)中主要函数的源码：

public class Conn

{

Public OleDbConnection Lb_Conn=new OleDbConnection(strConn); public static string strConn

{

get

{

StringBuilder strResult = new StringBuilder();

strResult.Append("Provider = Microsoft.Jet.OLEDB.4.0");

strResult.Append("; ");

strResult.Append("Data Source = ");

strResult.Append(HttpContext.Current.Server.MapPath(".")); strResult.Append("\\");

strResult.Append(ConfigurationSettings.AppSettings["MdbPath"]); return strResult.ToString();

}

}

public OleDbDataReader ExecuteOleDbDataReader(string strSql) {

OleDbCommand cmd=new OleDbCommand(strSql,Lb_Conn) OleDbDataReader rd=cmd.ExecuteReader();

return rd;

}

public DataSet CreateDataSet(string strSql,string tableName) {

OleDbDataAdapter da=new OleDbDataAdapter(strSql,Lb_Conn); DataSet dst=new DataSet();

da.Fill(dst,tableName);

return dst;

}

public int ExecuteSql(string strSql)

{

OleDbCommand cmd2=new OleDbCommand(strSql,Lb_Conn); int result=cmd2.ExecuteNonQuery();

return result;

}

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