Backup/DAL/bookType.cs

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

		/// <summary>
		/// 得到最大ID
		/// </summary>
		public int GetMaxId()
		{
		return DbHelperSQL.GetMaxID("tid", "bookType"); 
		}

		/// <summary>
		/// 是否存在该记录
		/// </summary>
		public bool Exists(int tid)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("select count(1) from bookType");
			strSql.Append(" where tid=@tid");
			SqlParameter[] parameters = {
					new SqlParameter("@tid", SqlDbType.Int,4)
			};
			parameters[0].Value = tid;

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


		/// <summary>
		/// 增加一条数据
		/// </summary>
		public int Add(BS.Model.bookType model)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("insert into bookType(");
			strSql.Append("tname)");
			strSql.Append(" values (");
			strSql.Append("@tname)");
			strSql.Append(";select @@IDENTITY");
			SqlParameter[] parameters = {
					new SqlParameter("@tname", SqlDbType.VarChar,50)};
			parameters[0].Value = model.tname;

			object obj = DbHelperSQL.GetSingle(strSql.ToString(),parameters);
			if (obj == null)
			{
				return 0;