MyBookShop/DAL/DALMenuInfo.cs

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using Core;
using Core.SqlHelper;
using Model;
using System;
using System.Collections.Generic;
using System.Data;
using System.Data.SqlClient;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace DAL
{
    /*
    * 类名：DALMenuInfo
    * 创建时间：2016/10/11 13:19:32
    * 创建人：XX人员
    * 基本功能：
    * 版本：
    *        version 1.0
    * **/
    public class DALMenuInfo
    { 
        /// <summary>
        /// 实例化SqlHelper对象
        /// </summary>
        SqlHelper helper = new SqlHelper();
        /// <summary>
        /// 获取一条菜单项信息
        /// </summary>
        /// <param name="id"></param>
        /// <returns></returns>
        public MenuInfo GetEntity(int id)
        {
            string sql = "select * from MenuInfo where Id=@Id ";
            SqlParameter[] parameters = new SqlParameter[] { 
                   new SqlParameter("@Id",SqlDbType.Int){Value=id}
             };
            DataSet ds = helper.ExcuteSelect(parameters, sql);
            MenuInfo entity = DataTransfer<MenuInfo>.GetEntity(ds);

            return entity;
        }
        /// <summary>
        /// 通过用户角色和菜单ＩＤ　查询菜单
        /// </summary>
        /// <param name="id"></param>
        /// <param name="roleid"></param>
        /// <returns></returns>
        public bool GetEntity(int menuid,int roleid)
        {
            string sql = "select * from MenuInfo where Id in(select MenuID from RoleMenu where MenuID=@MenuID and RoleID=@RoleID)   ";
            SqlParameter[] parameters = new SqlParameter[] { 
                   new SqlParameter("@RoleID",SqlDbType.Int){Value=roleid},
                   new SqlParameter("@MenuID",SqlDbType.Int){Value=menuid}
             };
            DataSet ds = helper.ExcuteSelect(parameters, sql);
            MenuInfo entity = DataTransfer<MenuInfo>.GetEntity(ds);
            return entity==null?false:true;
        }