DAL/Wx_GoodsTwoService.cs

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using System;
using System.Data;
using System.Text;
using System.Data.SqlClient;

namespace DAL
{
	/// <summary>
	/// 数据访问类:Wx_GoodsTwoService
	/// </summary>
	public partial class Wx_GoodsTwoService
	{
		public Wx_GoodsTwoService()
		{}
		#region  BasicMethod

		/// <summary>
		/// 是否存在该记录
		/// </summary>
		public static bool Exists(int id,int tid,string note)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("select count(1) from Wx_GoodsTwo");
			strSql.Append(" where id=@id and tid=@tid and note=@note ");
			SqlParameter[] parameters = {
					new SqlParameter("@id", SqlDbType.Int,4),
					new SqlParameter("@tid", SqlDbType.Int,4),
					new SqlParameter("@note", SqlDbType.NVarChar,50)			};
			parameters[0].Value = id;
			parameters[1].Value = tid;
			parameters[2].Value = note;

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


		/// <summary>
		/// 增加一条数据
		/// </summary>
        public static bool Add(Model.Wx_GoodsTwo model)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("insert into Wx_GoodsTwo(");
			strSql.Append("id,tid,note)");
			strSql.Append(" values (");
			strSql.Append("@id,@tid,@note)");
			SqlParameter[] parameters = {
					new SqlParameter("@id", SqlDbType.Int,4),
					new SqlParameter("@tid", SqlDbType.Int,4),
					new SqlParameter("@note", SqlDbType.NVarChar,50)};
			parameters[0].Value = model.id;
			parameters[1].Value = model.tid;
			parameters[2].Value = model.note;

			int rows=DBHelperSQL.ExecuteSql(strSql.ToString(),parameters);
			if (rows > 0)
			{
				return true;
			}
			else