一个简单的数据库操作类

类代码：

using System;
using System.Data;
using System.Data.SqlClient;
namespace exchange
{
public class MyDataOp
{
private String StrSql;
private String StrConn;
private SqlConnection Conn;
public MyDataOp(String ss)
{
StrSql = ss;
StrConn = System.Configuration.ConfigurationSettings.AppSettings["ConnectionString"];
}

public SqlDataReader CreateReader()
{
Conn=new SqlConnection(StrConn);
SqlCommand Comm=new SqlCommand(StrSql,Conn);
Conn.Open();
SqlDataReader MyReader = Comm.ExecuteReader();
return MyReader;
}
public DataSet CreateDataSet()
{
Conn=new SqlConnection(StrConn);
Conn.Open();
SqlDataAdapter Adpt=new SqlDataAdapter(StrSql,Conn);
DataSet Ds=new DataSet();
Adpt.Fill(Ds);
return Ds;
}
public SqlCommand ExecuteCommand()
{
Conn=new SqlConnection(StrConn);
SqlCommand Comm=new SqlCommand(StrSql,Conn);
Conn.Open();
Comm.ExecuteNonQuery();
return Comm;
}
public void Close()
{
Conn.Close();
}
}
}

出处：pconline