DAL/books.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:books
	/// </summary>
	public partial class books
	{
		public books()
		{}
		#region  BasicMethod

		/// <summary>
		/// 是否存在该记录
		/// </summary>
		public bool Exists(string bno)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("select count(1) from books");
			strSql.Append(" where bno=@bno ");
			SqlParameter[] parameters = {
					new SqlParameter("@bno", SqlDbType.VarChar,50)			};
			parameters[0].Value = bno;

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


		/// <summary>
		/// 增加一条数据
		/// </summary>
		public bool Add(BS.Model.books model)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("insert into books(");
			strSql.Append("bno,bname,tid,author,pic,pub,pubdate,price,memo,addr,quantity,addtime)");
			strSql.Append(" values (");
			strSql.Append("@bno,@bname,@tid,@author,@pic,@pub,@pubdate,@price,@memo,@addr,@quantity,@addtime)");
			SqlParameter[] parameters = {
					new SqlParameter("@bno", SqlDbType.VarChar,50),
					new SqlParameter("@bname", SqlDbType.VarChar,50),
					new SqlParameter("@tid", SqlDbType.Int,4),
					new SqlParameter("@author", SqlDbType.VarChar,50),
					new SqlParameter("@pic", SqlDbType.VarChar,100),
					new SqlParameter("@pub", SqlDbType.VarChar,50),
					new SqlParameter("@pubdate", SqlDbType.VarChar,50),
					new SqlParameter("@price", SqlDbType.Decimal,9),
					new SqlParameter("@memo", SqlDbType.NText),
					new SqlParameter("@addr", SqlDbType.VarChar,50),
					new SqlParameter("@quantity", SqlDbType.Int,4),
					new SqlParameter("@addtime", SqlDbType.DateTime)};
			parameters[0].Value = model.bno;
			parameters[1].Value = model.bname;
			parameters[2].Value = model.tid;
			parameters[3].Value = model.author;
			parameters[4].Value = model.pic;