using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using NPOI.HSSF.UserModel;
using System.Data;
using System.Drawing;
using NPOI.HSSF.Util;
using NPOI.SS.UserModel;
using NPOI.HPSF;
using NPOI.XSSF.UserModel;

namespace WebAPI.Controllers.SCGL.日计划管理
{
    /// <summary>
    /// Excel文件到DataSet的转换类
    /// </summary>
    public class NpoiHelper
    {
        #region 读取Excel文件内容转换为DataSet

        int ReadExcelEndRow = 0;
        /// <summary>
        /// 读取Excel文件内容转换为DataSet,列名依次为 "c0"……c[columnlength-1]
        /// </summary>
        /// <param name="FileName">文件绝对路径</param>
        /// <param name="startRow">数据开始行数(1为第一行)</param>
        /// <param name="ColumnDataType">每列的数据类型</param>
        /// <param name="numType">获取数据簿的类型</param>
        /// <param name="name">工作簿的名字</param>
        /// <returns></returns>
        public DataSet ReadExcel(string FileName, int startRow,int numType,string name, params NpoiDataType[] ColumnDataType)
        {
            string colNamePix = "F";
            int ertime = 0;
            int intime = 0;
            DataSet ds = new DataSet("ds");
            DataTable dt = new DataTable("dt");
            DataRow dr;
            StringBuilder sb = new StringBuilder();
            using (FileStream stream = new FileStream(@FileName, FileMode.Open, FileAccess.Read))
            {
                IWorkbook workbook = WorkbookFactory.Create(stream);//使用接口，自动识别excel2003/2007格式
                                                                    //for (int k = 0; k < 14; k++)
                ISheet sheet = null ;                                         //{
                if (numType == 1)//numType==1 获取工作簿按照下标
                {
                     sheet = workbook.GetSheetAt(int.Parse(name));//得到里面第一个sheet
                }
                else if (numType == 2)//numType==12 获取工作簿按照 工作簿的名字
                {
                     sheet = workbook.GetSheet(name);//得到里面第一个sheet
                }
               
               
                int j;
                IRow row;
                #region ColumnDataType赋值
                if (ColumnDataType.Length <= 0)
                {
                    row = sheet.GetRow(startRow - 1);//得到第i行
                    ColumnDataType = new NpoiDataType[row.LastCellNum];
                    for (int i = 0; i < row.LastCellNum; i++)
                    {
                        ICell hs = row.GetCell(i, MissingCellPolicy.CREATE_NULL_AS_BLANK);
                        ColumnDataType[i] = GetCellDataType(hs); //NpoiDataType.Blank;
                                                                 //if (i == 6)
                                                                 //{
                                                                 //    ColumnDataType[i] = NpoiDataType.Numeric;
                                                                 //}
                    }
                }
                #endregion
                for (j = 0; j < ColumnDataType.Length; j++)
                {
                    Type tp = GetDataTableType(ColumnDataType[j]);
                    //if (j == 6)
                    //{
                    //    tp = typeof(double);
                    //}
                    dt.Columns.Add(colNamePix + (j + 1), tp);
                }

                ReadExcelEndRow = ReadExcelEndRow == 0 ? sheet.PhysicalNumberOfRows : ReadExcelEndRow;
                for (int i = startRow - 1; i <= ReadExcelEndRow; i++)
                {
                    row = sheet.GetRow(i);//得到第i行
                    if (row == null) continue;
                    try
                    {
                        dr = dt.NewRow();

                        for (j = 0; j < ColumnDataType.Length; j++)
                        {
                            dr[colNamePix + (j + 1)] = GetCellData(ColumnDataType[j], row, j);
                        }
                        dt.Rows.Add(dr);
                        intime++;
                    }
                    catch (Exception er)
                    {
                        ertime++;
                        sb.Append(string.Format("第{0}行出错：{1}\r\n", i + 1, er.Message));
                        continue;
                    }
                }
                ds.Tables.Add(dt);
                //}
            }
            if (ds.Tables[0].Rows.Count == 0 && sb.ToString() != "") throw new Exception(sb.ToString());
            return ds;
        }
        #endregion
        #region//读取多个sheet
        public DataSet ReadExcelSub(string FileName, int startRow, params NpoiDataType[] ColumnDataType)
        {
            string colNamePix = "F";
            int ertime = 0;
            int intime = 0;
            DataSet ds = new DataSet("ds");
            DataTable dt0 = new DataTable("dt0");
            DataTable dt1 = new DataTable("dt1");
            DataTable dt2 = new DataTable("dt2");
            DataTable dt3 = new DataTable("dt3");
            DataTable dt4 = new DataTable("dt4");
            DataTable dt5 = new DataTable("dt5");
            DataTable dt6 = new DataTable("dt6");
            DataTable dt7 = new DataTable("dt7");
            DataTable dt8 = new DataTable("dt8");
            DataTable dt9 = new DataTable("dt9");
            DataTable dt10 = new DataTable("dt10");
            DataTable dt11 = new DataTable("dt11");
            DataTable dt12 = new DataTable("dt12");
            DataTable dt13 = new DataTable("dt13");


            DataRow dr;
            StringBuilder sb = new StringBuilder();
            using (FileStream stream = new FileStream(@FileName, FileMode.Open, FileAccess.Read))
            {


                //根据路径通过已存在的excel来创建HSSFWorkbook，即整个excel文档 

                HSSFWorkbook workbook = new HSSFWorkbook(stream);
                //XSSFWorkbook workbook = new XSSFWorkbook(stream);
                int x = workbook.NumberOfSheets;

                List<string> sheetNames = new List<string>();

                for (int i = 0; i < x; i++)
                {

                    //sheetNames.Add(workbook.Workbook.GetSheetName(i));
                    ISheet sheet = workbook.GetSheetAt(i);
                    int j;
                    IRow row;
                    #region ColumnDataType赋值
                    if (ColumnDataType.Length <= 0)
                    {
                        row = sheet.GetRow(startRow - 1);//得到第i行
                        ColumnDataType = new NpoiDataType[row.LastCellNum];
                        for (int a = 0; x < row.LastCellNum; a++)
                        {
                            ICell hs = row.GetCell(a, MissingCellPolicy.CREATE_NULL_AS_BLANK);
                            ColumnDataType[a] = GetCellDataType(hs); //NpoiDataType.Blank;

                        }
                    }
                    #endregion

                    for (j = 0; j < ColumnDataType.Length; j++)
                    {
                        Type tp = GetDataTableType(ColumnDataType[j]);//得到每一列的类型
                        ReadExcelEndRow = 0;
                        if (i == 0)
                        {
                            dt0.Columns.Add(colNamePix + (j + 1), tp);
                        }
                        else if (i == 1)
                        {
                            dt1.Columns.Add(colNamePix + (j + 1), tp);
                        }
                        else if (i == 2)
                        {
                            dt2.Columns.Add(colNamePix + (j + 1), tp);
                        }
                        else if (i == 3)
                        {
                            dt3.Columns.Add(colNamePix + (j + 1), tp);
                        }
                        else if (i == 4)
                        {
                            dt4.Columns.Add(colNamePix + (j + 1), tp);
                        }
                        else if (i == 5)
                        {
                            dt5.Columns.Add(colNamePix + (j + 1), tp);
                        }
                        else if (i == 6)
                        {
                            dt6.Columns.Add(colNamePix + (j + 1), tp);
                        }
                        else if (i == 7)
                        {
                            dt7.Columns.Add(colNamePix + (j + 1), tp);
                        }
                        else if (i == 8)
                        {
                            dt8.Columns.Add(colNamePix + (j + 1), tp);
                        }
                        else if (i == 9)
                        {
                            dt9.Columns.Add(colNamePix + (j + 1), tp);
                        }
                        else if (i == 10)
                        {
                            dt10.Columns.Add(colNamePix + (j + 1), tp);
                        }
                        else if (i == 11)
                        {
                            dt11.Columns.Add(colNamePix + (j + 1), tp);
                        }
                        else if (i == 12)
                        {
                            dt12.Columns.Add(colNamePix + (j + 1), tp);
                        }
                        else if (i == 13)
                        {
                            dt13.Columns.Add(colNamePix + (j + 1), tp);
                        }
                    }

                    ReadExcelEndRow = ReadExcelEndRow == 0 ? sheet.PhysicalNumberOfRows : ReadExcelEndRow;
                    for (int a = startRow - 1; a <= ReadExcelEndRow; a++)
                    {
                        row = sheet.GetRow(a);//得到第i行
                        if (row == null) continue;
                        try
                        {
                            if (i == 0)
                            {
                                dr = dt0.NewRow();
                                for (j = 0; j < ColumnDataType.Length; j++)
                                {
                                    dr[colNamePix + (j + 1)] = GetCellData(ColumnDataType[j], row, j);
                                }

                                dt0.Rows.Add(dr);
                                intime++;
                            }
                            else if (i == 1)
                            {
                                dr = dt1.NewRow();

                                for (j = 0; j < ColumnDataType.Length; j++)
                                {
                                    dr[colNamePix + (j + 1)] = GetCellData(ColumnDataType[j], row, j);
                                }

                                dt1.Rows.Add(dr);
                                intime++;
                            }
                            else if (i == 2)
                            {
                                dr = dt2.NewRow();



                                for (j = 0; j < ColumnDataType.Length; j++)
                                {
                                    dr[colNamePix + (j + 1)] = GetCellData(ColumnDataType[j], row, j);
                                }

                                dt2.Rows.Add(dr);
                                intime++;
                            }
                            else if (i == 3)
                            {
                                dr = dt3.NewRow();

                                for (j = 0; j < ColumnDataType.Length; j++)
                                {
                                    dr[colNamePix + (j + 1)] = GetCellData(ColumnDataType[j], row, j);
                                }

                                dt3.Rows.Add(dr);
                                intime++;
                            }
                            else if (i == 4)
                            {
                                dr = dt4.NewRow();
                                for (j = 0; j < ColumnDataType.Length; j++)
                                {
                                    dr[colNamePix + (j + 1)] = GetCellData(ColumnDataType[j], row, j);
                                }

                                dt4.Rows.Add(dr);
                                intime++;
                            }
                            else if (i == 5)
                            {
                                dr = dt5.NewRow();
                                for (j = 0; j < ColumnDataType.Length; j++)
                                {
                                    dr[colNamePix + (j + 1)] = GetCellData(ColumnDataType[j], row, j);
                                }

                                dt5.Rows.Add(dr);
                                intime++;
                            }
                            else if (i == 6)
                            {
                                dr = dt6.NewRow();
                                for (j = 0; j < ColumnDataType.Length; j++)
                                {
                                    dr[colNamePix + (j + 1)] = GetCellData(ColumnDataType[j], row, j);
                                }

                                dt6.Rows.Add(dr);
                                intime++;
                            }
                            else if (i == 7)
                            {
                                dr = dt7.NewRow();
                                for (j = 0; j < ColumnDataType.Length; j++)
                                {
                                    dr[colNamePix + (j + 1)] = GetCellData(ColumnDataType[j], row, j);
                                }

                                dt7.Rows.Add(dr);
                                intime++;
                            }
                            else if (i == 8)
                            {
                                dr = dt8.NewRow();
                                for (j = 0; j < ColumnDataType.Length; j++)
                                {
                                    dr[colNamePix + (j + 1)] = GetCellData(ColumnDataType[j], row, j);
                                }

                                dt8.Rows.Add(dr);
                                intime++;
                            }
                            else if (i == 9)
                            {
                                dr = dt9.NewRow();
                                for (j = 0; j < ColumnDataType.Length; j++)
                                {
                                    dr[colNamePix + (j + 1)] = GetCellData(ColumnDataType[j], row, j);
                                }

                                dt9.Rows.Add(dr);
                                intime++;
                            }
                            else if (i == 10)
                            {
                                dr = dt10.NewRow();
                                for (j = 0; j < ColumnDataType.Length; j++)
                                {
                                    dr[colNamePix + (j + 1)] = GetCellData(ColumnDataType[j], row, j);
                                }

                                dt10.Rows.Add(dr);
                                intime++;
                            }
                            else if (i == 11)
                            {
                                dr = dt11.NewRow();
                                for (j = 0; j < ColumnDataType.Length; j++)
                                {
                                    dr[colNamePix + (j + 1)] = GetCellData(ColumnDataType[j], row, j);
                                }

                                dt11.Rows.Add(dr);
                                intime++;
                            }
                            else if (i == 12)
                            {
                                dr = dt12.NewRow();
                                for (j = 0; j < ColumnDataType.Length; j++)
                                {
                                    dr[colNamePix + (j + 1)] = GetCellData(ColumnDataType[j], row, j);
                                }

                                dt12.Rows.Add(dr);
                                intime++;
                            }
                            else if (i == 13)
                            {
                                dr = dt13.NewRow();
                                for (j = 0; j < ColumnDataType.Length; j++)
                                {
                                    dr[colNamePix + (j + 1)] = GetCellData(ColumnDataType[j], row, j);
                                }

                                dt13.Rows.Add(dr);
                                intime++;
                            }

                        }
                        catch (Exception er)
                        {
                            ertime++;
                            sb.Append(string.Format("第{0}行出错：{1}\r\n", i + 1, er.Message));
                            continue;
                        }
                    }
                    if (i == 0)
                    {
                        ds.Tables.Add(dt0);
                    }
                    else if (i == 1)
                    {
                        ds.Tables.Add(dt1);
                    }
                    else if (i == 2)
                    {
                        ds.Tables.Add(dt2);
                    }
                    else if (i == 3)
                    {
                        ds.Tables.Add(dt3);
                    }
                    else if (i == 4)
                    {
                        ds.Tables.Add(dt4);
                    }
                    else if (i == 5)
                    {
                        ds.Tables.Add(dt5);
                    }
                    else if (i == 6)
                    {
                        ds.Tables.Add(dt6);
                    }
                    else if (i == 7)
                    {
                        ds.Tables.Add(dt7);
                    }
                    else if (i == 8)
                    {
                        ds.Tables.Add(dt8);
                    }
                    else if (i == 9)
                    {
                        ds.Tables.Add(dt9);
                    }
                    else if (i == 10)
                    {
                        ds.Tables.Add(dt10);
                    }
                    else if (i == 11)
                    {
                        ds.Tables.Add(dt11);
                    }
                    else if (i == 12)
                    {
                        ds.Tables.Add(dt12);
                    }
                    else if (i == 13)
                    {
                        ds.Tables.Add(dt13);
                    }

                }
                //IWorkbook workbook = WorkbookFactory.Create(stream);//使用接口，自动识别excel2003/2007格式
                //ISheet sheet = workbook.GetSheetAt(0);//得到里面第一个sheet

            }
            //if (ds.Tables[0].Rows.Count == 0 && sb.ToString() != "") throw new Exception(sb.ToString());
            return ds;
        }
        #endregion
        Color LevelOneColor = Color.Green;
        Color LevelTwoColor = Color.FromArgb(201, 217, 243);
        Color LevelThreeColor = Color.FromArgb(231, 238, 248);
        Color LevelFourColor = Color.FromArgb(232, 230, 231);
        Color LevelFiveColor = Color.FromArgb(250, 252, 213);
        public List<DataSet> ReadExcelBySheetIndex(string FileName, int startRow, string str)
        {
            List<DataSet> listDs = new List<DataSet>();

            StringBuilder sb = new StringBuilder();
            using (FileStream stream = new FileStream(@FileName, FileMode.Open, FileAccess.Read))
            {
                IWorkbook workbook = WorkbookFactory.Create(stream);//使用接口，自动识别excel2003/2007格式
                //   ISheet sheet = workbook.GetSheetAt(SheetIndex);//得到里面第一个sheet

                List<string> listSheet = GetSheetNames(workbook);
                ISheet sheet;

                foreach (string sheetName in listSheet)
                {
                    DataSet ds = new DataSet("ds");
                    DataTable dt = new DataTable("dt");
                    sheet = workbook.GetSheet(sheetName);
                    if (!sheetName.Contains(str))
                    {
                        continue;
                    }
                    NPOI.SS.UserModel.IRow headerRow = sheet.GetRow(0);
                    int cellCount = headerRow.LastCellNum;

                    for (int j = 0; j < cellCount; j++)
                    {
                        NPOI.SS.UserModel.ICell cell = headerRow.GetCell(j);
                        dt.Columns.Add("F" + j.ToString());
                    }

                    int r = sheet.PhysicalNumberOfRows;
                    for (int i = (sheet.FirstRowNum); i <= 2900; i++)
                    {
                        NPOI.SS.UserModel.IRow row = null;
                        try
                        {
                            row = sheet.GetRow(i);
                            int ex = row.FirstCellNum;
                        }
                        catch (Exception)
                        {
                            continue;
                        }
                        DataRow dataRow = dt.NewRow();

                        for (int j = row.FirstCellNum; j < cellCount; j++)
                        {
                            try
                            {
                                if (row.GetCell(j) != null || row.GetCell(j).ToString() != "")
                                    //dataRow[j] = row.GetCell(j).ToString();
                                    dataRow[j] = GetCellData(row, j);
                            }
                            catch (Exception ex)
                            {
                                string s = ex.ToString();
                            }
                        }
                        dt.Rows.Add(dataRow);
                    }
                    ds.Tables.Add(dt);
                    listDs.Add(ds);
                }
                //   if (ds.Tables[0].Rows.Count == 0 && sb.ToString() != "") throw new Exception(sb.ToString());
            }

            return listDs;

        }
        public List<string> GetSheetNames(IWorkbook workbook)
        {
            int x = workbook.NumberOfSheets;
            List<string> sheetNames = new List<string>();
            for (int i = 0; i < x; i++)
            {
                sheetNames.Add(workbook.GetSheetName(i));
            }
            return sheetNames;
        }
        public object GetCellData(IRow row, int column)
        {
            try
            {
                ICell hs = row.GetCell(column);
                NpoiDataType datatype = GetCellDataType(hs); //NpoiDataType.Blank;
                object obj = row.GetCell(column) ?? null;
                if (datatype == NpoiDataType.Datetime)
                {
                    string v = "";
                    try
                    {
                        v = row.GetCell(column).StringCellValue;
                    }
                    catch (Exception e1)
                    {
                        v = row.GetCell(column).DateCellValue.ToString("yyyy-MM-dd hh:mm:ss");
                    }
                    if (v != "")
                    {
                        try
                        {
                            obj = row.GetCell(column).DateCellValue.ToString("yyyy-MM-dd hh:mm:ss");

                        }
                        catch (Exception e2)
                        {
                            obj = Convert.ToDateTime(v).ToString("yyyy-MM-dd hh:mm:ss");
                        }
                    }
                    else
                        obj = DBNull.Value;


                }
                else if (datatype == NpoiDataType.Numeric)
                {
                    obj = DBNull.Value;
                    try
                    {
                        //if (row.GetCell(column).StringCellValue != "")
                        obj = row.GetCell(column).NumericCellValue;
                    }
                    catch (Exception e3)
                    {
                        obj = row.GetCell(column).StringCellValue;
                    }

                }
                else if (datatype == NpoiDataType.String && hs.CellType == CellType.Formula)
                {
                    obj = row.GetCell(column).StringCellValue;
                }
                return obj;
            }
            catch (Exception e22)
            {
                return "";
            }
        }
        #region 从DataSet导出到MemoryStream流2003
        /// <summary>
        /// 从DataSet导出到MemoryStream流2003
        /// </summary>
        /// <param name="SaveFileName">文件保存路径</param>
        /// <param name="SheetName">Excel文件中的Sheet名称</param>
        /// <param name="ds">存储数据的DataSet</param>
        /// <param name="startRow">从哪一行开始写入，从0开始</param>
        /// <param name="datatypes">DataSet中的各列对应的数据类型</param>
        public bool CreateExcel2003(string SaveFileName, string SheetName, DataSet ds, int startRow, params NpoiDataType[] datatypes)
        {
            try
            {
                if (startRow < 0) startRow = 0;
                HSSFWorkbook wb = new HSSFWorkbook();
                wb = new HSSFWorkbook();
                DocumentSummaryInformation dsi = PropertySetFactory.CreateDocumentSummaryInformation();
                dsi.Company = "pkm";
                SummaryInformation si = PropertySetFactory.CreateSummaryInformation();
                si.Title =
                si.Subject = "automatic genereted document";
                si.Author = "pkm";
                wb.DocumentSummaryInformation = dsi;
                wb.SummaryInformation = si;
                ISheet sheet = wb.CreateSheet(SheetName);
                //sheet.SetColumnWidth(0, 50 * 256);
                //sheet.SetColumnWidth(1, 100 * 256);
                IRow row;
                ICell cell;
                DataRow dr;
                int j;
                int maxLength = 0;
                int curLength = 0;
                object columnValue;
                DataTable dt = ds.Tables[0];
                if (datatypes.Length < dt.Columns.Count)
                {
                    datatypes = new NpoiDataType[dt.Columns.Count];
                    for (int i = 0; i < dt.Columns.Count; i++)
                    {
                        string dtcolumntype = dt.Columns[i].DataType.Name.ToLower();
                        switch (dtcolumntype)
                        {
                            case "string":
                                datatypes[i] = NpoiDataType.String;
                                break;
                            case "datetime":
                                datatypes[i] = NpoiDataType.Datetime;
                                break;
                            case "boolean":
                                datatypes[i] = NpoiDataType.Bool;
                                break;
                            case "double":
                                datatypes[i] = NpoiDataType.Numeric;
                                break;
                            default:
                                datatypes[i] = NpoiDataType.String;
                                break;
                        }
                    }
                }

                #region 创建表头
                row = sheet.CreateRow(0);//创建第i行
                ICellStyle style1 = wb.CreateCellStyle();//样式
                IFont font1 = wb.CreateFont();//字体

                font1.Color = HSSFColor.White.Index;//字体颜色
                font1.Boldweight = (short)FontBoldWeight.Bold;//字体加粗样式
                //style1.FillBackgroundColor = HSSFColor.WHITE.index;//GetXLColour(wb, LevelOneColor);// 设置图案色
                style1.FillForegroundColor = HSSFColor.Green.Index;//GetXLColour(wb, LevelOneColor);// 设置背景色
                style1.FillPattern = FillPattern.SolidForeground;
                style1.SetFont(font1);//样式里的字体设置具体的字体样式
                style1.Alignment = HorizontalAlignment.Center;//文字水平对齐方式
                style1.VerticalAlignment = VerticalAlignment.Center;//文字垂直对齐方式
                row.HeightInPoints = 25;
                for (j = 0; j < dt.Columns.Count; j++)
                {
                    columnValue = dt.Columns[j].ColumnName;
                    curLength = Encoding.Default.GetByteCount(columnValue.ToString());
                    maxLength = (maxLength < curLength ? curLength : maxLength);
                    int colounwidth = 256 * maxLength;
                    sheet.SetColumnWidth(j, colounwidth);
                    try
                    {
                        cell = row.CreateCell(j);//创建第0行的第j列
                        cell.CellStyle = style1;//单元格式设置样式

                        cell.SetCellType(CellType.String);
                        cell.SetCellValue(columnValue.ToString());


                    }
                    catch
                    {
                        continue;
                    }
                }
                #endregion

                #region 创建每一行
                for (int i = startRow; i < ds.Tables[0].Rows.Count; i++)
                {
                    dr = ds.Tables[0].Rows[i];
                    row = sheet.CreateRow(i + 1);//创建第i行
                    for (j = 0; j < dt.Columns.Count; j++)
                    {
                        columnValue = dr[j];
                        curLength = Encoding.Default.GetByteCount(columnValue.ToString());
                        maxLength = (maxLength < curLength ? curLength : maxLength);
                        int colounwidth = 256 * maxLength;
                        sheet.SetColumnWidth(j, colounwidth);
                        try
                        {
                            cell = row.CreateCell(j);//创建第i行的第j列
                            #region 插入第j列的数据
                            try
                            {
                                NpoiDataType dtype = datatypes[j];
                                switch (dtype)
                                {
                                    case NpoiDataType.String:
                                        {
                                            cell.SetCellType(CellType.String);
                                            cell.SetCellValue(columnValue.ToString());
                                        }
                                        break;
                                    case NpoiDataType.Datetime:
                                        {
                                            cell.SetCellType(CellType.String);
                                            cell.SetCellValue(columnValue.ToString());
                                        }
                                        break;
                                    case NpoiDataType.Numeric:
                                        {
                                            cell.SetCellType(CellType.Numeric);
                                            cell.SetCellValue(Convert.ToDouble(columnValue));
                                        }
                                        break;
                                    case NpoiDataType.Bool:
                                        {
                                            cell.SetCellType(CellType.Boolean);
                                            cell.SetCellValue(Convert.ToBoolean(columnValue));
                                        }
                                        break;
                                    case NpoiDataType.Richtext:
                                        {
                                            cell.SetCellType(CellType.Formula);
                                            cell.SetCellValue(columnValue.ToString());
                                        }
                                        break;
                                }
                            }
                            catch
                            {
                                cell.SetCellType(CellType.String);
                                cell.SetCellValue(columnValue.ToString());
                            }
                            #endregion

                        }
                        catch
                        {
                            continue;
                        }
                    }
                }
                #endregion

                //using (FileStream fs = new FileStream(@SaveFileName, FileMode.OpenOrCreate))//生成文件在服务器上
                //{
                //    wb.Write(fs);
                //}
                //string SaveFileName = "output.xls";
                using (FileStream fs = new FileStream(@SaveFileName, FileMode.OpenOrCreate, FileAccess.Write))//生成文件在服务器上
                {
                    wb.Write(fs);
                    Console.WriteLine("文件保存成功！" + SaveFileName);
                }

                return true;
            }
            catch (Exception er)
            {
                Console.WriteLine("文件保存成功！" + SaveFileName);
                return false;
            }

        }
        #endregion

        #region 从DataSet导出到MemoryStream流2007
        /// <summary>
        /// 从DataSet导出到MemoryStream流2007
        /// </summary>
        /// <param name="SaveFileName">文件保存路径</param>
        /// <param name="SheetName">Excel文件中的Sheet名称</param>
        /// <param name="ds">存储数据的DataSet</param>
        /// <param name="startRow">从哪一行开始写入，从0开始</param>
        /// <param name="datatypes">DataSet中的各列对应的数据类型</param>
        public bool CreateExcel2007(string SaveFileName, string SheetName, DataSet ds, int startRow, params NpoiDataType[] datatypes)
        {
            try
            {
                if (startRow < 0) startRow = 0;
                XSSFWorkbook wb = new XSSFWorkbook();
                ISheet sheet = wb.CreateSheet(SheetName);
                //sheet.SetColumnWidth(0, 50 * 256);
                //sheet.SetColumnWidth(1, 100 * 256);
                IRow row;
                ICell cell;
                DataRow dr;
                int j;
                int maxLength = 0;
                int curLength = 0;
                object columnValue;
                DataTable dt = ds.Tables[0];
                if (datatypes.Length < dt.Columns.Count)
                {
                    datatypes = new NpoiDataType[dt.Columns.Count];
                    for (int i = 0; i < dt.Columns.Count; i++)
                    {
                        string dtcolumntype = dt.Columns[i].DataType.Name.ToLower();
                        switch (dtcolumntype)
                        {
                            case "string":
                                datatypes[i] = NpoiDataType.String;
                                break;
                            case "datetime":
                                datatypes[i] = NpoiDataType.Datetime;
                                break;
                            case "boolean":
                                datatypes[i] = NpoiDataType.Bool;
                                break;
                            case "double":
                                datatypes[i] = NpoiDataType.Numeric;
                                break;
                            default:
                                datatypes[i] = NpoiDataType.String;
                                break;
                        }
                    }
                }

                #region 创建表头
                row = sheet.CreateRow(0);//创建第i行
                ICellStyle style1 = wb.CreateCellStyle();//样式
                IFont font1 = wb.CreateFont();//字体

                font1.Color = HSSFColor.White.Index;//字体颜色
                font1.Boldweight = (short)FontBoldWeight.Bold;//字体加粗样式
                //style1.FillBackgroundColor = HSSFColor.WHITE.index;//GetXLColour(wb, LevelOneColor);// 设置图案色
                style1.FillForegroundColor = HSSFColor.Green.Index;//GetXLColour(wb, LevelOneColor);// 设置背景色
                style1.FillPattern = FillPattern.SolidForeground;
                style1.SetFont(font1);//样式里的字体设置具体的字体样式
                style1.Alignment = HorizontalAlignment.Center;//文字水平对齐方式
                style1.VerticalAlignment = VerticalAlignment.Center;//文字垂直对齐方式
                //row.HeightInPoints = 25;
                row.HeightInPoints = 15;
                for (j = 0; j < dt.Columns.Count; j++)
                {
                    columnValue = dt.Columns[j].ColumnName;
                    curLength = Encoding.Default.GetByteCount(columnValue.ToString());
                    maxLength = (maxLength < curLength ? curLength : maxLength);
                    int colounwidth = 256 * maxLength;
                    sheet.SetColumnWidth(j, colounwidth);
                    try
                    {
                        cell = row.CreateCell(j);//创建第0行的第j列
                        cell.CellStyle = style1;//单元格式设置样式

                        //cell.SetCellType(CellType.STRING);
                        cell.SetCellValue(columnValue.ToString());
                    }
                    catch
                    {
                        continue;
                    }
                }
                #endregion

                #region 创建每一行
                for (int i = startRow; i < ds.Tables[0].Rows.Count; i++)
                {
                    dr = ds.Tables[0].Rows[i];
                    row = sheet.CreateRow(i + 1);//创建第i行
                    for (j = 0; j < dt.Columns.Count; j++)
                    {
                        columnValue = dr[j];
                        curLength = Encoding.Default.GetByteCount(columnValue.ToString());
                        maxLength = (maxLength < curLength ? curLength : maxLength);
                        //int colounwidth = 256 * maxLength;
                        int colounwidth = 3000;
                        sheet.SetColumnWidth(j, colounwidth);
                        try
                        {
                            cell = row.CreateCell(j);//创建第i行的第j列
                            #region 插入第j列的数据
                            try
                            {
                                NpoiDataType dtype = datatypes[j];
                                switch (dtype)
                                {
                                    case NpoiDataType.String:
                                        {
                                            //cell.SetCellType(CellType.STRING);
                                            cell.SetCellValue(columnValue.ToString());
                                        }
                                        break;
                                    case NpoiDataType.Datetime:
                                        {
                                            // cell.SetCellType(CellType.STRING);
                                            cell.SetCellValue(columnValue.ToString());
                                        }
                                        break;
                                    case NpoiDataType.Numeric:
                                        {
                                            //cell.SetCellType(CellType.NUMERIC);
                                            cell.SetCellValue(Convert.ToDouble(columnValue));
                                        }
                                        break;
                                    case NpoiDataType.Bool:
                                        {
                                            //cell.SetCellType(CellType.BOOLEAN);
                                            cell.SetCellValue(Convert.ToBoolean(columnValue));
                                        }
                                        break;
                                    case NpoiDataType.Richtext:
                                        {
                                            // cell.SetCellType(CellType.FORMULA);
                                            cell.SetCellValue(columnValue.ToString());
                                        }
                                        break;
                                }
                            }
                            catch
                            {
                                //cell.SetCellType(HSSFCell.CELL_TYPE_STRING);
                                cell.SetCellValue(columnValue.ToString());
                            }
                            #endregion

                        }
                        catch
                        {
                            continue;
                        }
                    }
                }
                #endregion

                //using (FileStream fs = new FileStream(@SaveFileName, FileMode.OpenOrCreate))//生成文件在服务器上
                //{
                //    wb.Write(fs);
                //}
                //string SaveFileName = "output.xlsx";
                using (FileStream fs = new FileStream(SaveFileName, FileMode.OpenOrCreate, FileAccess.Write))//生成文件在服务器上
                {
                    wb.Write(fs);
                    Console.WriteLine("文件保存成功！" + SaveFileName);
                }
                return true;
            }
            catch (Exception er)
            {
                Console.WriteLine("文件保存失败！" + SaveFileName);
                return false;
            }

        }
        #endregion

        private short GetXLColour(HSSFWorkbook workbook, System.Drawing.Color SystemColour)
        {
            short s = 0;
            HSSFPalette XlPalette = workbook.GetCustomPalette();
            HSSFColor XlColour = XlPalette.FindColor(SystemColour.R, SystemColour.G, SystemColour.B);
            if (XlColour == null)
            {
                if (NPOI.HSSF.Record.PaletteRecord.STANDARD_PALETTE_SIZE < 255)
                {
                    if (NPOI.HSSF.Record.PaletteRecord.STANDARD_PALETTE_SIZE < 64)
                    {
                        //NPOI.HSSF.Record.PaletteRecord.STANDARD_PALETTE_SIZE= 64;
                        //NPOI.HSSF.Record.PaletteRecord.STANDARD_PALETTE_SIZE += 1;
                        XlColour = XlPalette.AddColor(SystemColour.R, SystemColour.G, SystemColour.B);
                    }
                    else
                    {
                        XlColour = XlPalette.FindSimilarColor(SystemColour.R, SystemColour.G, SystemColour.B);
                    }
                    s = XlColour.Indexed;
                }
            }
            else
                s = XlColour.Indexed;
            return s;
        }

        #region 读Excel-根据NpoiDataType创建的DataTable列的数据类型
        /// <summary>
        /// 读Excel-根据NpoiDataType创建的DataTable列的数据类型
        /// </summary>
        /// <param name="datatype"></param>
        /// <returns></returns>
        private Type GetDataTableType(NpoiDataType datatype)
        {
            Type tp = typeof(string);//Type.GetType("System.String")
            switch (datatype)
            {
                case NpoiDataType.Bool:
                    tp = typeof(bool);
                    break;
                case NpoiDataType.Datetime:
                    tp = typeof(DateTime);
                    break;
                case NpoiDataType.Numeric:
                    tp = typeof(double);
                    break;
                case NpoiDataType.Error:
                    tp = typeof(string);
                    break;
                case NpoiDataType.Blank:
                    tp = typeof(string);
                    break;
            }
            return tp;
        }
        #endregion

        #region 读Excel-得到不同数据类型单元格的数据
        /// <summary>
        /// 读Excel-得到不同数据类型单元格的数据
        /// </summary>
        /// <param name="datatype">数据类型</param>
        /// <param name="row">数据中的一行</param>
        /// <param name="column">哪列</param>
        /// <returns></returns>
        private object GetCellData(NpoiDataType datatype, IRow row, int column)
        {
            var objcell = row.GetCell(column);

            object obj = objcell ?? null;
            if (obj == null)
            {
                return null;
            }

            if (obj.ToString().Contains("月") && obj.ToString().Contains("-") && objcell.DateCellValue != null)
            {
                datatype = NpoiDataType.Datetime;
            }
            else if (objcell.CellType == CellType.Numeric && (obj.ToString().Contains("-") || obj.ToString().Contains("/")) && objcell.DateCellValue != null)
            {
                datatype = NpoiDataType.Datetime;
            }


            if (datatype == NpoiDataType.Datetime)
            {
                string v = "";
                try
                {
                    v = row.GetCell(column).StringCellValue.Trim();
                }
                catch (Exception e1)
                {
                    v = row.GetCell(column).DateCellValue.ToString("yyyy-MM-dd hh:mm:ss");
                }
                if (v != "")
                {
                    try
                    {
                        obj = row.GetCell(column).DateCellValue.ToString("yyyy-MM-dd hh:mm:ss");

                    }
                    catch (Exception e2)
                    {
                        obj = Convert.ToDateTime(v).ToString("yyyy-MM-dd hh:mm:ss");
                    }
                }
                else
                    obj = DBNull.Value;

            }
            else if (datatype == NpoiDataType.Numeric)
            {
                obj = DBNull.Value;
                try
                {
                    //if (row.GetCell(column).StringCellValue != "")
                    obj = row.GetCell(column).NumericCellValue;
                }
                catch (Exception e3)
                {
                    obj = row.GetCell(column).StringCellValue.Trim();
                }

            }
            else
            {
                if (obj != null)
                {
                    obj = obj.ToString().Trim().Replace("\n", "");//去掉回车，ligerui tree不支持回车
                    if (obj.ToString().StartsWith("."))
                    {

                        decimal.Parse("0" + obj.ToString());
                        obj = "0" + obj.ToString();
                    }
                }
            }
            return obj;
        }

        private object GetCellData_double(NpoiDataType datatype, IRow row, int column)
        {
            return (object)(row.GetCell(column).NumericCellValue) ?? null;
        }
        #endregion

        #region 获取单元格数据类型
        /// <summary>
        /// 获取单元格数据类型
        /// </summary>
        /// <param name="hs"></param>
        /// <returns></returns>
        private NpoiDataType GetCellDataType(ICell hs)
        {
            NpoiDataType dtype;
            DateTime t1;
            string cellvalue = "";

            switch (hs.CellType)
            {
                case CellType.Blank:
                    dtype = NpoiDataType.String;
                    cellvalue = hs.StringCellValue;
                    break;
                case CellType.Boolean:
                    dtype = NpoiDataType.Bool;
                    break;
                case CellType.Numeric:
                    dtype = NpoiDataType.String;
                    if (hs.NumericCellValue.ToString().Contains("-") || hs.NumericCellValue.ToString().Contains("/") || hs.ToString().Contains("-") || hs.ToString().Contains("/"))
                    {
                        hs.DateCellValue.ToString();
                        dtype = NpoiDataType.Datetime;
                    }
                    cellvalue = hs.NumericCellValue.ToString();
                    break;
                case CellType.String:
                    dtype = NpoiDataType.String;
                    cellvalue = hs.StringCellValue;
                    break;
                case CellType.Error:
                    dtype = NpoiDataType.Error;
                    break;
                case CellType.Formula:
                    {
                        dtype = NpoiDataType.String;
                        try
                        {
                            if (hs.CachedFormulaResultType == CellType.Numeric && hs.NumericCellValue.ToString() != "")
                            {
                                dtype = NpoiDataType.Numeric;
                                cellvalue = hs.NumericCellValue.ToString();
                            }
                            else if (hs.CachedFormulaResultType == CellType.Numeric && hs.DateCellValue.ToString() != "")
                            {
                                dtype = NpoiDataType.Datetime;
                                cellvalue = hs.DateCellValue.ToString();
                            }
                            else if (hs.RichStringCellValue.ToString() != "")
                            {
                                dtype = NpoiDataType.String;
                                cellvalue = hs.RichStringCellValue.ToString();
                            }
                        }
                        catch
                        {
                            try
                            {
                                if (hs.CachedFormulaResultType == CellType.Numeric && hs.NumericCellValue.ToString() != "")
                                {
                                    dtype = NpoiDataType.Numeric;
                                    cellvalue = hs.NumericCellValue.ToString();
                                }
                            }
                            catch
                            {
                                //cellvalue = hs.StringCellValue;
                            }
                        }

                        break;
                    }
                default:
                    dtype = NpoiDataType.Datetime;
                    break;
            }
            //if (cellvalue != "" && DateTime.TryParse(cellvalue, out t1)) dtype = NpoiDataType.Datetime;
            return dtype;
        }
        #endregion


        #region 测试代码


        #endregion


        public DataSet ReadExcel_ByColNum(string FileName, int startRow, int LastCellNum, params NpoiDataType[] ColumnDataType)
        {
            string colNamePix = "F";
            int ertime = 0;
            int intime = 0;
            DataSet ds = new DataSet("ds");
            DataTable dt = new DataTable("dt");
            DataRow dr;
            StringBuilder sb = new StringBuilder();
            using (FileStream stream = new FileStream(@FileName, FileMode.Open, FileAccess.Read))
            {
                IWorkbook workbook = WorkbookFactory.Create(stream);//使用接口，自动识别excel2003/2007格式
                ISheet sheet = workbook.GetSheetAt(0);//得到里面第一个sheet
                int j;
                IRow row;
                #region ColumnDataType赋值
                if (ColumnDataType.Length <= 0)
                {
                    row = sheet.GetRow(startRow - 1);//得到第i行
                    ColumnDataType = new NpoiDataType[LastCellNum];
                    for (int i = 0; i < LastCellNum; i++)
                    {
                        ICell hs = row.GetCell(i, MissingCellPolicy.CREATE_NULL_AS_BLANK);
                        ColumnDataType[i] = GetCellDataType(hs); //NpoiDataType.Blank;
                    }
                }
                #endregion
                for (j = 0; j < ColumnDataType.Length; j++)
                {
                    Type tp = GetDataTableType(ColumnDataType[j]);
                    dt.Columns.Add(colNamePix + j, tp);
                }

                ReadExcelEndRow = ReadExcelEndRow == 0 ? sheet.PhysicalNumberOfRows : ReadExcelEndRow;
                int ss = sheet.LastRowNum + 1;
                if (ReadExcelEndRow < ss && ReadExcelEndRow > 0)
                {
                    ReadExcelEndRow = ss;
                }
                for (int i = startRow - 1; i <= ReadExcelEndRow; i++)
                {
                    row = sheet.GetRow(i);//得到第i行
                    if (row == null) continue;
                    try
                    {
                        dr = dt.NewRow();

                        for (j = 0; j < ColumnDataType.Length; j++)
                        {
                            dr[colNamePix + (j)] = GetCellData(ColumnDataType[j], row, j);
                        }
                        dt.Rows.Add(dr);
                        intime++;
                    }
                    catch (Exception er)
                    {
                        ertime++;
                        sb.Append(string.Format("第{0}行出错：{1}\r\n", i + 1, er.Message));
                        continue;
                    }
                }
                ds.Tables.Add(dt);
            }
            if (ds.Tables[0].Rows.Count == 0 && sb.ToString() != "") throw new Exception(sb.ToString());
            return ds;
        }

    }

    #region 枚举(Excel单元格数据类型)
    /// <summary>
    /// 枚举(Excel单元格数据类型)
    /// </summary>
    public enum NpoiDataType
    {
        /// <summary>
        /// 字符串类型-值为1
        /// </summary>
        String,
        /// <summary>
        /// 布尔类型-值为2
        /// </summary>
        Bool,
        /// <summary>
        /// 时间类型-值为3
        /// </summary>
        Datetime,
        /// <summary>
        /// 数字类型-值为4
        /// </summary>
        Numeric,
        /// <summary>
        /// 复杂文本类型-值为5
        /// </summary>
        Richtext,
        /// <summary>
        /// 空白
        /// </summary>
        Blank,
        /// <summary>
        /// 错误
        /// </summary>
        Error
    }
    #endregion

}