正在阅读：源码展示:ASP.NET 数据访问类源码展示:ASP.NET 数据访问类

     dr.Close();
    }
    catch
    {
    }
    finally
    {
     closeConnection();
    }
   }
  }

  /// <summary>
  /// 返回指定Sql语句的DataSet
  /// </summary>
  /// <param name="sqlstr">传入的Sql语句</param>
  /// <returns>DataSet</returns>
  public static DataSet dataSet(string sqlstr)
  {
   DataSet ds= new DataSet();
   SqlDataAdapter da=new SqlDataAdapter();
   try
   {
    openConnection();
    comm.CommandType =CommandType.Text ;
    comm.CommandText =sqlstr;
    da.SelectCommand =comm;
    da.Fill(ds);
   }
   catch(Exception e)
   {
    throw new Exception(e.Message);
   }
   finally
   {
    closeConnection();
   }
   return ds;
  }

  /// <summary>
  /// 返回指定Sql语句的DataSet
  /// </summary>
  /// <param name="sqlstr">传入的Sql语句</param>
  /// <param name="ds">传入的引用DataSet对象</param>
  public static void dataSet(string sqlstr,ref DataSet ds)
  {
   SqlDataAdapter da=new SqlDataAdapter();
   try
   {
    openConnection();
    comm.CommandType =CommandType.Text ;
    comm.CommandText =sqlstr;
    da.SelectCommand =comm;
    da.Fill(ds);
   }
   catch(Exception e)
   {
    throw new Exception(e.Message);
   }