Backup/DAL/orders.cs

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

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

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


		/// <summary>
		/// 增加一条数据
		/// </summary>
		public bool Add(PSD.Model.orders model)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("insert into orders(");
			strSql.Append("oid,lname,sprice,pay,atime,by1,by2)");
			strSql.Append(" values (");
			strSql.Append("@oid,@lname,@sprice,@pay,@atime,@by1,@by2)");
			SqlParameter[] parameters = {
					new SqlParameter("@oid", SqlDbType.VarChar,50),
					new SqlParameter("@lname", SqlDbType.VarChar,50),
					new SqlParameter("@sprice", SqlDbType.Decimal,9),
					new SqlParameter("@pay", SqlDbType.VarChar,50),
					new SqlParameter("@atime", SqlDbType.DateTime),
					new SqlParameter("@by1", SqlDbType.VarChar,50),
					new SqlParameter("@by2", SqlDbType.VarChar,50)};
			parameters[0].Value = model.oid;
			parameters[1].Value = model.lname;
			parameters[2].Value = model.sprice;
			parameters[3].Value = model.pay;
			parameters[4].Value = model.atime;
			parameters[5].Value = model.by1;
			parameters[6].Value = model.by2;

			int rows=DbHelperSQL.ExecuteSql(strSql.ToString(),parameters);
			if (rows > 0)