TrainSign.Common/Json/DataPageHelper.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;
using System.Data.SqlClient;
using System.Web.UI.WebControls;
using System.Data.OleDb;
using System.Web.UI;
using System.IO;
using TindWit.DBUtility;

namespace TindWit.Common
{
    public class ResultEx<T> where T : class, new()
    {

        public List<T> Data { get; set; }
        public int hasmore { get; set; }
        public string msg { get; set; }
        public string msgEx1 { get; set; }
        public string msgEx2 { get; set; }
        public string msgEx3 { get; set; }
        public int pageIndex { get; set; }
        public int pageSize { get; set; }
        public int status { get; set; }
        public bool success { get; set; }
        public int Total { get; set; }
    }

    public class DataPageHelper
    {
        public static DataSet GetDataPage(string sql, out int count)
        {
            count = 0;
            DataSet ds = DbHelperSQL.Query(sql);
            if (ds.Tables[0].Rows.Count > 0)
                count = Convert.ToInt32(ds.Tables[0].Rows[0]["SNum"]);
            return ds;
        }
        /// <summary>
        /// DataTable分页
        /// </summary>
        /// <param name="dt">DataTable</param>
        /// <param name="PageIndex">页索引,注意：从1开始</param>
        /// <param name="PageSize">每页大小</param>
        /// <returns>分好页的DataTable数据</returns>              第1页        每页10条
        public static DataTable GetPagedTable2(DataTable dt, int PageIndex, int PageSize)
        {
            if (PageIndex == 0) { return dt; }
            DataTable newdt = dt.Copy();
            newdt.Clear();
            int rowbegin = (PageIndex - 1) * PageSize;
            int rowend = PageIndex * PageSize;

            if (rowbegin >= dt.Rows.Count)
            { return newdt; }

            if (rowend > dt.Rows.Count)
            { rowend = dt.Rows.Count; }