1using System;
 2using System.Data;
 3using MyShop.Model;
 4
 5namespace MyShop.IDAL
 6...{
 7    public  interface IChannel
 8    ...{
 9
10        int Add(ChannelInfo model);
11        int Delete(string filter);
12        bool Exist(string filter);
13        DataSet GetDataSet();
14        DataSet GetDataSet(string filter);
15        ChannelInfo GetModel(DataRow dr);
16        DataSet Query(string sql);
17        int Update(ChannelInfo model, string filter);
18    }
19}
20