DAL/editable/tbRoomType.cs

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using System;
using System.Collections.Generic;
using System.Data;
using System.Data.Common;
using System.Text;

namespace DAL
{
    /// <summary>
    /// 数据访问类 tbRoomType
    /// <summary>
    public partial class tbRoomType : DALHelper
    {
        /// <summary>
        /// 增加一条数据
        /// </summary>
        public int Add(Model.tbRoomType model)
        {
            IDbDataParameter[] parms4tbRoomType = PrepareAddParameters(model);
            return dbHelper.ExecuteNonQuery(CommandType.Text, COMMAND_ADD, parms4tbRoomType);
        }

        /// <summary>
        /// 更新一条数据
        /// </summary>
        public int Update(Model.tbRoomType model)
        {
            IDbDataParameter[] parms4tbRoomType = PrepareUpdateParameters(model);
            return dbHelper.ExecuteNonQuery(CommandType.Text, COMMAND_UPDATE, parms4tbRoomType);
        }

        /// <summary>
        /// 删除一条数据
        /// </summary>
        public int Delete(int? RT_ID)
        {
            IDbDataParameter[] parms4tbRoomType = PrepareDeleteParameters(RT_ID);
            return dbHelper.ExecuteNonQuery(CommandType.Text, COMMAND_DELETE, parms4tbRoomType);
        }

        /// <summary>
        /// 得到一个对象实体
        /// </summary>
        public Model.tbRoomType GetModel(int? RT_ID)
        {
            IDbDataParameter[] parms4tbRoomType = PrepareGetModelParameters(RT_ID);
            using (IDataReader dr = dbHelper.ExecuteReader(CommandType.Text, COMMAND_GETMODEL, parms4tbRoomType))
            {
                if (dr.Read()) return GetModel(dr);
                return null;
            }
        }

        /// <summary>
        /// 是否存在该记录
        /// </summary>
        public bool Exists(int? RT_ID)
        {
            IDbDataParameter[] parms4tbRoomType = PrepareExistParameters(RT_ID);
            object obj = dbHelper.ExecuteScalar(CommandType.Text, COMMAND_EXISTS, parms4tbRoomType);