1using System;
 2using System.Data;
 3using MyShop.Model;
 4
 5namespace MyShop.IDAL
 6...{
 7    public interface IPaymentType
 8    ...{
 9
10        int Add(PaymentTypeInfo model);
11        int Delete(string filter);
12        bool Exist(string filter);
13        DataSet GetDataSet();
14        DataSet GetDataSet(string filter);
15        PaymentTypeInfo GetModel(DataRow dr);
16        DataSet Query(string sql);
17        int Update(PaymentTypeInfo model, string filter);
18
19    }
20}
21