DAL/P_GoodsInfo.cs

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using System;
using System.Data;
using System.Text;
using System.Data.SqlClient;
using Maticsoft.DBUtility;//请先添加引用
namespace MrZeng.DAL
{
	/// <summary>
	/// 数据访问类P_GoodsInfo。
	/// </summary>
	public class P_GoodsInfo
	{
		public P_GoodsInfo()
		{}
		#region  成员方法

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

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

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

       
		/// <summary>
		/// 增加一条数据
		/// </summary>
		public int Add(MrZeng.Model.P_GoodsInfo model)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("insert into P_GoodsInfo(");
            strSql.Append("GoodsID,GoodsName,GoodsType,IsDiscount,GoodsUnit,GoodsSum,SellSum,SellPrice,ImageUrl,Describe,ClickCount,CommentCount,RecommendCount,UserNum,LoadDate)");
			strSql.Append(" values (");
            strSql.Append("@GoodsID,@GoodsName,@GoodsType,@IsDiscount,@GoodsUnit,@GoodsSum,@SellSum,@SellPrice,@ImageUrl,@Describe,@ClickCount,@CommentCount,@RecommendCount,@UserNum,@LoadDate)");
			strSql.Append(";select @@IDENTITY");
			SqlParameter[] parameters = {
					new SqlParameter("@GoodsID", SqlDbType.VarChar,50),
					new SqlParameter("@GoodsName", SqlDbType.VarChar,50),
					new SqlParameter("@GoodsType", SqlDbType.VarChar,50),
                    new SqlParameter("@IsDiscount",SqlDbType.Bit,1),
					new SqlParameter("@GoodsUnit", SqlDbType.VarChar,10),
					new SqlParameter("@GoodsSum", SqlDbType.Int,4),
                    new SqlParameter("@SellSum", SqlDbType.Int,4),
					new SqlParameter("@SellPrice", SqlDbType.Money,8),