DAL/PrePayOrderService.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:PrePayOrderService
	/// </summary>
	public partial class PrePayOrderService
	{
		public PrePayOrderService()
		{}
		#region  BasicMethod
		/// <summary>
		/// 是否存在该记录
		/// </summary>
		public static bool Exists(int id)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("select count(1) from PrePayOrder");
			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 static int Add(Model.PrePayOrder model)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("insert into PrePayOrder(");
			strSql.Append("orderId,orderNo,preId,addTime,status,remark,infoType)");
			strSql.Append(" values (");
			strSql.Append("@orderId,@orderNo,@preId,@addTime,@status,@remark,@infoType)");
			strSql.Append(";select @@IDENTITY");
			SqlParameter[] parameters = {
					new SqlParameter("@orderId", SqlDbType.Int,4),
					new SqlParameter("@orderNo", SqlDbType.VarChar,50),
					new SqlParameter("@preId", SqlDbType.VarChar,150),
					new SqlParameter("@addTime", SqlDbType.DateTime),
					new SqlParameter("@status", SqlDbType.Int,4),
					new SqlParameter("@remark", SqlDbType.VarChar,150),
					new SqlParameter("@infoType", SqlDbType.Int,4)};
			parameters[0].Value = model.orderId;
			parameters[1].Value = model.orderNo;
			parameters[2].Value = model.preId;
			parameters[3].Value = model.addTime;
			parameters[4].Value = model.status;
			parameters[5].Value = model.remark;
			parameters[6].Value = model.infoType;

			object obj = DBHelperSQL.GetSingle(strSql.ToString(),parameters);