DAL/Channel.cs

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using System;
using System.Data;
using System.Text;
using System.Data.SqlClient;
using System.Data.OleDb;
using Maticsoft.DBUtility;//Please add references
namespace cosmos.DAL
{
    /// <summary>
    /// 数据访问类:Channel
    /// </summary>
    public partial class Channel
    {
        public Channel()
        { }
        #region  Method

        /// <summary>
        /// 得到最大ID
        /// </summary>
        public int GetMaxId()
        {
            return DbHelperOleDb.GetMaxID("Id", "tb_Channel");
        }

        /// <summary>
        /// 是否存在该记录
        /// </summary>
        public bool Exists(int Id)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select count(1) from tb_Channel");
            strSql.Append(" where Id=@Id");
            OleDbParameter[] parameters = {
					new OleDbParameter("@Id", OleDbType.Integer,4)};
            parameters[0].Value = Id;

            return DbHelperOleDb.Exists(strSql.ToString(), parameters);
        }

        /// <summary>
        /// 返回栏目名称
        /// </summary>
        public string GetChannelTitle(int classId)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select top 1 Title from tb_Channel");
            strSql.Append(" where Id=" + classId);
            string title = Convert.ToString(DbHelperOleDb.GetSingle(strSql.ToString()));
            if (string.IsNullOrEmpty(title))
            {
                return "";
            }
            return title;
        }

        /// <summary>
        /// 增加一条数据
        /// </summary>
        public int Add(cosmos.Model.Channel model)