在调用ExecuteReader时从基本DAL类处理SqlConnection

I've been assigned on a project where the DAL consists of a base class with functions to return IDataReader, an Object (int, string and the like), or a DataSet. An ExecuteNonQuery function also exists. This DAL only accesses USPs (SQL Server), and is using MS's SqlHelper to execute the queries. Here's two sample functions from the base:I've been assigned on a project where the DAL c