BLL/Channel.cs

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using System;
using System.Collections.Generic;
using System.Data;


using MyShop.DALFactory;
using MyShop.IDAL;
using MyShop.Model;
using MyShop.Enumerations;
using MyShop.Common;

namespace MyShop.BLL
{
    public class Channel
    {
        private IChannel dal = DataAccess.CreateChannel();

        #region  IChannel

        public int Add(ChannelInfo model)
        {
            if (model == null)
            {
                return 0;
            }
            return dal.Add(model);
        }

        public int Delete(string filter)
        {
            if (string.IsNullOrEmpty(filter))
                return 0;
            return dal.Delete(filter);
        }

        public bool Exist(string filter)
        {
            filter = filter.Trim();
            if (string.IsNullOrEmpty(filter))
                return false;
            return dal.Exist(filter);
        }
        public DataSet GetDataSet()
        {
            return dal.GetDataSet();
        }

        public DataSet GetDataSet(string filter)
        {
            filter = filter.Trim();
            if (string.IsNullOrEmpty(filter))
                return null;
            return dal.GetDataSet(filter);
        }

        public ChannelInfo GetModel(DataRow dr)
        {
            if (dr == null)
                return null;
            return dal.GetModel(dr);