MxWeiXinPF.DAL/plugs/wx_diancai_dingdan_caiping.cs

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

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

        /// <summary>
        /// 是否存在该记录
        /// </summary>
        public bool Exists(int id)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select count(1) from wx_diancai_dingdan_caiping");
            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(MxWeiXinPF.Model.wx_diancai_dingdan_caiping model)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("insert into wx_diancai_dingdan_caiping(");
            strSql.Append("dingId,caiId,num,price,totpric)");
            strSql.Append(" values (");
            strSql.Append("@dingId,@caiId,@num,@price,@totpric)");
            strSql.Append(";select @@IDENTITY");
            SqlParameter[] parameters = {
					new SqlParameter("@dingId", SqlDbType.Int,4),
					new SqlParameter("@caiId", SqlDbType.Int,4),
					new SqlParameter("@num", SqlDbType.Int,4),
					new SqlParameter("@price", SqlDbType.Float,8),
					new SqlParameter("@totpric", SqlDbType.Float,8)};
            parameters[0].Value = model.dingId;