SQLServerDAL/productliuyan.cs

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using System;
using System.Data;
using System.Text;
using System.Data.SqlClient;
using CAI.SHOP.IDAL;
using Maticsoft.DBUtility;//请先添加引用
namespace CAI.SHOP.SQLServerDAL
{
	/// <summary>
	/// 数据访问类productliuyan。
	/// </summary>
	public class productliuyan:Iproductliuyan
	{
		public productliuyan()
		{}
		#region  成员方法

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

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

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


		/// <summary>
		/// 增加一条数据
		/// </summary>
		public int Add(CAI.SHOP.Model.productliuyan model)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("insert into productliuyan(");
			strSql.Append("pid,liuname,liutime,liuzhu,liuhui,huifutime)");
			strSql.Append(" values (");
			strSql.Append("@pid,@liuname,@liutime,@liuzhu,@liuhui,@huifutime)");
			strSql.Append(";select @@IDENTITY");
			SqlParameter[] parameters = {
					new SqlParameter("@pid", SqlDbType.Int,4),
					new SqlParameter("@liuname", SqlDbType.VarChar,50),
					new SqlParameter("@liutime", SqlDbType.DateTime),
					new SqlParameter("@liuzhu", SqlDbType.NVarChar,1000),
					new SqlParameter("@liuhui", SqlDbType.NVarChar,1000),
					new SqlParameter("@huifutime", SqlDbType.VarChar,50)};
			parameters[0].Value = model.pid;