#region 全局变量 PageIndex PageSize Conntion Count        MySqlHelp Sqldb = new MySqlHelp();        QueryHelp db = new QueryHelp();        // 页数        public int PageIndex = 1;        //条数        public int PageSize = 1000;        //链接语句        public string Conntion = "server=192.168.1.175;user id=root;password=123456;database=txst;";        public int Count { get; set; }        #endregion        #region 设置按钮首页，尾页，下一页，上一页的可用和不可用属性        /// <summary>        ///DownPag.IsEnabled 上一页        ///UpPag.IsEnabled 下一页        ///onePag.IsEnabled 首页        ///Listpag.IsEnabled 尾页        ///<param name="state"></param>        void SetState(bool state)        {            DownPag.IsEnabled = state;            UpPag.IsEnabled = state;            onePag.IsEnabled = state;            Listpag.IsEnabled = state;        }        #endregion        #region 加载        public Selectpag()        {            InitializeComponent();            string safeSql = "TableTestSelect";            Select_pag_pag.DataContext = db.ToList<tabletset>(safeSql, Conntion);            Count = GeiCountPage();            UpPag.IsEnabled = false;            onePag.IsEnabled = false;        }        #endregion        #region 首页        private void onePagClick(object sender, RoutedEventArgs e)        {            PageIndex = 1;            List<DbParameter> listpar = new List<DbParameter>{               new MySqlParameter("?pageIndex",PageIndex),               new MySqlParameter("?pageSize",PageSize)            };            string safeSql = "getpager";            Select_pag_pag.DataContext = db.ToList<tabletset>(safeSql, listpar, Conntion);        }        #endregion        #region 尾页        private void ListpagClick(object sender, RoutedEventArgs e)        {            PageIndex = GeiCountPage();            List<DbParameter> listpar = new List<DbParameter>{               new MySqlParameter("?pageIndex",PageIndex),               new MySqlParameter("?pageSize",PageSize)            };            string safeSql = "getpager";            Select_pag_pag.DataContext = db.ToList<tabletset>(safeSql, listpar, Conntion);        }        #endregion        #region 上一页        private void UpPagClick(object sender, RoutedEventArgs e)        {            SetState(true);            PageIndex--;            if (PageIndex <= 1)            {                PageIndex = 1;                UpPag.IsEnabled = false;                onePag.IsEnabled = false;            }            List<DbParameter> listpar = new List<DbParameter>{               new MySqlParameter("?pageIndex",PageIndex),               new MySqlParameter("?pageSize",PageSize)            };            string safeSql = "getpager";            Select_pag_pag.DataContext = db.ToList<tabletset>(safeSql, listpar, Conntion);        }        #endregion        #region 下一页        private void DownPag_Click(object sender, RoutedEventArgs e)        {            SetState(true);            PageIndex++;            if (PageIndex >= Count)            {                PageIndex = Count;                DownPag.IsEnabled = false;                Listpag.IsEnabled = false;            }            List<DbParameter> listpar = new List<DbParameter>{            new MySqlParameter("?pageIndex",PageIndex),            new MySqlParameter("?pageSize",PageSize)            };            string safeSql = "getpager";            Select_pag_pag.DataContext = db.ToList<tabletset>(safeSql, listpar, Conntion);        }        #endregion        #region 测试表        class tabletset        {            public int ID { get; set; }            public string NameTest { get; set; }            public string PasswordTset { get; set; }        }        #endregion        #region 总条数        private int GeiCountPage()        {            string cmdText = "tableByPager";            List<DbParameter> ListPar = new List<DbParameter>            {                new MySqlParameter("?Count",DbType.Int32){Direction= ParameterDirection.Output}            };            Sqldb.ExecuteNonQuery(cmdText, ListPar, Conntion);            int PageCount = int.Parse(ListPar[0].Value.ToString());            if (PageCount % PageSize == 0)            {                PageCount = PageCount / PageSize;            }            else            {                PageCount = (PageCount / PageSize) + 1;            }            return PageCount;        }        #endregion