using System;
using System.Collections.Generic;
using System.Linq;
using System.Data;
using System.IO;
using System.Text;
using System.Web;
using NPOI.HPSF;
using NPOI.HSSF.UserModel;
using NPOI.SS.UserModel;
using DevExpress.XtraGrid;
using DevExpress.XtraGrid.Views.Grid;
using DevExpress.XtraGrid.Columns;
using System.Data.Common;
using System.Data.SqlClient;
using System.Windows.Forms;
using DevExpress.XtraEditors;
using CommonLib;

namespace Lskj.Common
{

    public class ExcelHelper
    {
        /// <summary>   
        /// DataTable导出到Excel文件   
        /// </summary>   
        /// <param name="dtSource">源DataTable</param>   
        /// <param name="strHeaderText">表头文本</param>   
        /// <param name="strFileName">保存位置</param>
        /// <param name="strSheetName">工作表名称</param>
        /// <Author>柳永法 http://www.yongfa365.com/ 2010-5-8 22:21:41</Author>   
        public static void Export(DataTable dtSource, string strHeaderText, string strFileName, string strSheetName, string[] oldColumnNames, string[] newColumnNames)
        {
            if (strSheetName == "")
            {
                strSheetName = "Sheet";
            }
            using (MemoryStream ms = Export(dtSource, strHeaderText, strSheetName, oldColumnNames, newColumnNames))
            {
                using (FileStream fs = new FileStream(strFileName, FileMode.Create, FileAccess.Write))
                {
                    byte[] data = ms.ToArray();
                    fs.Write(data, 0, data.Length);
                    fs.Flush();
                }
            }
        }

        /// <summary>   
        /// DataTable导出到Excel的MemoryStream   
        /// </summary>   
        /// <param name="dtSource">源DataTable</param>   
        /// <param name="strHeaderText">表头文本</param>   
        /// <param name="strSheetName">工作表名称</param>
        /// <Author>柳永法 http://www.yongfa365.com/ 2010-5-8 22:21:41</Author>   
        public static MemoryStream Export(DataTable dtSource, string strHeaderText, string strSheetName, string[] oldColumnNames, string[] newColumnNames)
        {
            if (oldColumnNames.Length != newColumnNames.Length)
            {
                return new MemoryStream();
            }
            HSSFWorkbook workbook = new HSSFWorkbook();
            //HSSFSheet sheet = workbook.CreateSheet();// workbook.CreateSheet();
            ISheet sheet = workbook.CreateSheet(strSheetName);

            #region 右击文件 属性信息
            {
                DocumentSummaryInformation dsi = PropertySetFactory.CreateDocumentSummaryInformation();
                dsi.Company = "朗速科技";
                workbook.DocumentSummaryInformation = dsi;

                SummaryInformation si = PropertySetFactory.CreateSummaryInformation();
                if (HttpContext.Current.Session["realname"] != null)
                {
                    si.Author = HttpContext.Current.Session["realname"].ToString();
                }
                else
                {
                    if (HttpContext.Current.Session["username"] != null)
                    {
                        si.Author = HttpContext.Current.Session["username"].ToString();
                    }
                }                                       //填加xls文件作者信息   
                si.ApplicationName = "朗速ERP";            //填加xls文件创建程序信息   
                si.LastAuthor = "dingliang";           //填加xls文件最后保存者信息   
                si.Comments = "朗速ERP导出文件";      //填加xls文件作者信息   
                si.Title = strHeaderText;               //填加xls文件标题信息   
                si.Subject = strHeaderText;              //填加文件主题信息   
                si.CreateDateTime = DateTime.Now;
                workbook.SummaryInformation = si;
            }
            #endregion

            ICellStyle dateStyle = workbook.CreateCellStyle();
            IDataFormat format = workbook.CreateDataFormat();
            dateStyle.DataFormat = format.GetFormat("yyyy-mm-dd");

            #region 取得列宽
            int[] arrColWidth = new int[oldColumnNames.Length];
            for (int i = 0; i < oldColumnNames.Length; i++)
            {
                arrColWidth[i] = Encoding.GetEncoding(936).GetBytes(newColumnNames[i]).Length;
            }
            /*
            foreach (DataColumn item in dtSource.Columns)
            {
                arrColWidth[item.Ordinal] = Encoding.GetEncoding(936).GetBytes(item.ColumnName.ToString()).Length;
            }
             * */

            for (int i = 0; i < dtSource.Rows.Count; i++)
            {
                for (int j = 0; j < oldColumnNames.Length; j++)
                {
                    int intTemp = Encoding.GetEncoding(936).GetBytes(dtSource.Rows[i][oldColumnNames[j]].ToString()).Length;
                    if (intTemp > arrColWidth[j])
                    {
                        arrColWidth[j] = intTemp;
                    }
                }
                /*
                for (int j = 0; j < dtSource.Columns.Count; j++)
                {
                    int intTemp = Encoding.GetEncoding(936).GetBytes(dtSource.Rows[i][j].ToString()).Length;
                    if (intTemp > arrColWidth[j])
                    {
                        arrColWidth[j] = intTemp;
                    }
                }
                 * */
            }
            #endregion
            int rowIndex = 0;

            foreach (DataRow row in dtSource.Rows)
            {
                #region 新建表，填充表头，填充列头，样式
                if (rowIndex == 65535 || rowIndex == 0)
                {
                    if (rowIndex != 0)
                    {
                        sheet = workbook.CreateSheet(strSheetName + ((int)rowIndex / 65535).ToString());
                    }

                    #region 表头及样式
                    {
                        IRow headerRow = sheet.CreateRow(0);
                        headerRow.HeightInPoints = 25;
                        headerRow.CreateCell(0).SetCellValue(strHeaderText);

                        ICellStyle headStyle = workbook.CreateCellStyle();
                        headStyle.Alignment = NPOI.SS.UserModel.HorizontalAlignment.Center;
                        IFont font = workbook.CreateFont();
                        font.FontHeightInPoints = 20;
                        font.Boldweight = 700;
                        headStyle.SetFont(font);

                        headerRow.GetCell(0).CellStyle = headStyle;
                        //sheet.AddMergedRegion(new Region(0, 0, 0, dtSource.Columns.Count - 1));
                        sheet.AddMergedRegion(new NPOI.SS.Util.CellRangeAddress(0, 0, 0, dtSource.Columns.Count - 1));
                    }
                    #endregion


                    #region 列头及样式
                    {
                        //HSSFRow headerRow = sheet.CreateRow(1);
                        IRow headerRow = sheet.CreateRow(1);

                        ICellStyle headStyle = workbook.CreateCellStyle();
                        headStyle.Alignment = NPOI.SS.UserModel.HorizontalAlignment.Center;
                        IFont font = workbook.CreateFont();
                        font.FontHeightInPoints = 10;
                        font.Boldweight = 700;
                        headStyle.SetFont(font);

                        for (int i = 0; i < oldColumnNames.Length; i++)
                        {
                            headerRow.CreateCell(i).SetCellValue(newColumnNames[i]);
                            headerRow.GetCell(i).CellStyle = headStyle;
                            //设置列宽
                            sheet.SetColumnWidth(i, (arrColWidth[i] + 1) * 256);
                        }
                        /*
                        foreach (DataColumn column in dtSource.Columns)
                        {
                            headerRow.CreateCell(column.Ordinal).SetCellValue(column.ColumnName);
                            headerRow.GetCell(column.Ordinal).CellStyle = headStyle;

                            //设置列宽   
                            sheet.SetColumnWidth(column.Ordinal, (arrColWidth[column.Ordinal] + 1) * 256);
                        }
                         * */
                    }
                    #endregion

                    rowIndex = 2;
                }
                #endregion


                #region 填充内容
                IRow dataRow = sheet.CreateRow(rowIndex);
                //foreach (DataColumn column in dtSource.Columns)
                for (int i = 0; i < oldColumnNames.Length; i++)
                {
                    ICell newCell = dataRow.CreateCell(i);

                    string drValue = row[oldColumnNames[i]].ToString();

                    switch (dtSource.Columns[oldColumnNames[i]].DataType.ToString())
                    {
                        case "System.String"://字符串类型   
                            newCell.SetCellValue(drValue);
                            break;
                        case "System.DateTime"://日期类型   
                            DateTime dateV;
                            DateTime.TryParse(drValue, out dateV);
                            newCell.SetCellValue(dateV);

                            newCell.CellStyle = dateStyle;//格式化显示   
                            break;
                        case "System.Boolean"://布尔型   
                            bool boolV = false;
                            bool.TryParse(drValue, out boolV);
                            newCell.SetCellValue(boolV);
                            break;
                        case "System.Int16"://整型   
                        case "System.Int32":
                        case "System.Int64":
                        case "System.Byte":
                            int intV = 0;
                            int.TryParse(drValue, out intV);
                            newCell.SetCellValue(intV);
                            break;
                        case "System.Decimal"://浮点型   
                        case "System.Double":
                            double doubV = 0;
                            double.TryParse(drValue, out doubV);
                            newCell.SetCellValue(doubV);
                            break;
                        case "System.DBNull"://空值处理   
                            newCell.SetCellValue("");
                            break;
                        default:
                            newCell.SetCellValue("");
                            break;
                    }

                }
                #endregion

                rowIndex++;
            }


            using (MemoryStream ms = new MemoryStream())
            {
                workbook.Write(ms);
                ms.Flush();
                ms.Position = 0;

                //sheet.Dispose();
                sheet = null;
                workbook = null;
                //workbook.Dispose();//一般只用写这一个就OK了，他会遍历并释放所有资源，但当前版本有问题所以只释放sheet   
                return ms;
            }
        }
        /// <summary>
        /// 从表格中读取数据到Excel
        /// </summary>
        /// <param name="GridControlPub">需要导出的表格</param>
        /// <returns></returns>
        public static int ExportGrid(DevExpress.XtraGrid.GridControl GridControlPub)
        {
            SaveFileDialog saveFileDialog = new SaveFileDialog();
            saveFileDialog.Title = "导出Excel";
            saveFileDialog.Filter = "Excel文件(*.xls)|*.xls|Excel2007|*.xlsx|PDF文件|*.PDF|RTF文件|*.RTF|HTML文件|*.html";
            DialogResult dialogResult = saveFileDialog.ShowDialog();
            if (dialogResult == DialogResult.OK)
            {
                DevExpress.XtraPrinting.XlsExportOptions options = new DevExpress.XtraPrinting.XlsExportOptions();
                if (saveFileDialog.FilterIndex == 1)
                {
                    GridControlPub.ExportToXls(saveFileDialog.FileName);
                }
                if (saveFileDialog.FilterIndex == 2)
                {
                    GridControlPub.ExportToXlsx(saveFileDialog.FileName);
                }
                if (saveFileDialog.FilterIndex == 3)
                {
                    GridControlPub.ExportToPdf(saveFileDialog.FileName);
                }
                if (saveFileDialog.FilterIndex == 4)
                {
                    GridControlPub.ExportToRtf(saveFileDialog.FileName);
                }
                if (saveFileDialog.FilterIndex == 5)
                {
                    GridControlPub.ExportToHtml(saveFileDialog.FileName);
                }
                DevExpress.XtraEditors.XtraMessageBox.Show("保存成功！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
            }
            return 1;
        }

        /// <summary>   
        /// WEB导出DataTable到Excel   
        /// </summary>   
        /// <param name="dtSource">源DataTable</param>   
        /// <param name="strHeaderText">表头文本</param>   
        /// <param name="strFileName">文件名</param>   
        /// <Author>柳永法 http://www.yongfa365.com/ 2010-5-8 22:21:41</Author>   
        public static void ExportByWeb(DataTable dtSource, string strHeaderText, string strFileName)
        {
            ExportByWeb(dtSource, strHeaderText, strFileName, "sheet");
        }

        /// <summary>
        /// WEB导出DataTable到Excel
        /// </summary>
        /// <param name="dtSource">源DataTable</param>
        /// <param name="strHeaderText">表头文本</param>
        /// <param name="strFileName">输出文件名，包含扩展名</param>
        /// <param name="oldColumnNames">要导出的DataTable列数组</param>
        /// <param name="newColumnNames">导出后的对应列名</param>
        public static void ExportByWeb(DataTable dtSource, string strHeaderText, string strFileName, string[] oldColumnNames, string[] newColumnNames)
        {
            ExportByWeb(dtSource, strHeaderText, strFileName, "sheet", oldColumnNames, newColumnNames);
        }

        /// <summary>
        /// WEB导出DataTable到Excel
        /// </summary>
        /// <param name="dtSource">源DataTable</param>
        /// <param name="strHeaderText">表头文本</param>
        /// <param name="strFileName">输出文件名</param>
        /// <param name="strSheetName">工作表名称</param>
        public static void ExportByWeb(DataTable dtSource, string strHeaderText, string strFileName, string strSheetName)
        {
            HttpContext curContext = HttpContext.Current;

            // 设置编码和附件格式   
            curContext.Response.ContentType = "application/vnd.ms-excel";
            curContext.Response.ContentEncoding = Encoding.UTF8;
            curContext.Response.Charset = "";
            curContext.Response.AppendHeader("Content-Disposition",
                "attachment;filename=" + HttpUtility.UrlEncode(strFileName, Encoding.UTF8));

            //生成列
            string columns = "";
            for (int i = 0; i < dtSource.Columns.Count; i++)
            {
                if (i > 0)
                {
                    columns += ",";
                }
                columns += dtSource.Columns[i].ColumnName;
            }

            curContext.Response.BinaryWrite(Export(dtSource, strHeaderText, strSheetName, columns.Split(','), columns.Split(',')).GetBuffer());
            curContext.Response.End();

        }

        /// <summary>
        /// 导出DataTable到Excel
        /// </summary>
        /// <param name="dtSource">要导出的DataTable</param>
        /// <param name="strHeaderText">标题文字</param>
        /// <param name="strFileName">文件名，包含扩展名</param>
        /// <param name="strSheetName">工作表名</param>
        /// <param name="oldColumnNames">要导出的DataTable列数组</param>
        /// <param name="newColumnNames">导出后的对应列名</param>
        public static void ExportByWeb(DataTable dtSource, string strHeaderText, string strFileName, string strSheetName, string[] oldColumnNames, string[] newColumnNames)
        {
            HttpContext curContext = HttpContext.Current;

            // 设置编码和附件格式   
            curContext.Response.ContentType = "application/vnd.ms-excel";
            curContext.Response.ContentEncoding = Encoding.UTF8;
            curContext.Response.Charset = "";
            curContext.Response.AppendHeader("Content-Disposition",
                "attachment;filename=" + HttpUtility.UrlEncode(strFileName, Encoding.UTF8));

            curContext.Response.BinaryWrite(Export(dtSource, strHeaderText, strSheetName, oldColumnNames, newColumnNames).GetBuffer());
            curContext.Response.End();
        }

        /// <summary>读取excel   
        /// 默认第一行为表头，导入第一个工作表
        /// </summary>   
        /// <param name="strFileName">excel文档路径</param>   
        /// <returns></returns>   
        public static DataTable Import(string strFileName)
        {
            DataTable dt = new DataTable();

            HSSFWorkbook hssfworkbook;
            using (FileStream file = new FileStream(strFileName, FileMode.Open, FileAccess.Read))
            {
                hssfworkbook = new HSSFWorkbook(file);
            }
            ISheet sheet = hssfworkbook.GetSheetAt(0);
            System.Collections.IEnumerator rows = sheet.GetRowEnumerator();

            IRow headerRow = sheet.GetRow(0);
            int cellCount = headerRow.LastCellNum;

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

            for (int i = (sheet.FirstRowNum + 1); i <= sheet.LastRowNum; i++)
            {
                IRow row = sheet.GetRow(i);
                DataRow dataRow = dt.NewRow();

                for (int j = row.FirstCellNum; j < cellCount; j++)
                {
                    if (row.GetCell(j) != null)
                    {
                        if (row.GetCell(j).CellType == CellType.Numeric)
                            dataRow[j] = row.GetCell(j).NumericCellValue;
                        else
                            dataRow[j] = row.GetCell(j).ToString();
                    }
                }
                dt.Rows.Add(dataRow);
            }
            return dt;
        }

        public static void Import(string strFileName, DataTable dtDest)
        {
            if (dtDest == null)
            {
                dtDest =  new DataTable();
            }
            int existColCount = dtDest.Columns.Count;
            HSSFWorkbook hssfworkbook;
            using (FileStream file = new FileStream(strFileName, FileMode.Open, FileAccess.Read))
            {
                hssfworkbook = new HSSFWorkbook(file);
            }
            ISheet sheet = hssfworkbook.GetSheetAt(0);
            System.Collections.IEnumerator rows = sheet.GetRowEnumerator();

            IRow headerRow = sheet.GetRow(0);
            int cellCount = headerRow.LastCellNum;

            for (int j = 0; j < cellCount; j++)
            {
                ICell cell = headerRow.GetCell(j);
                dtDest.Columns.Add(cell.ToString());
            }

            for (int i = (sheet.FirstRowNum + 1); i <= sheet.LastRowNum; i++)
            {
                IRow row = sheet.GetRow(i);
                DataRow dataRow = dtDest.NewRow();

                for (int j = row.FirstCellNum; j < cellCount; j++)
                {
                    if (row.GetCell(j) != null)
                    {
                        if (row.GetCell(j).CellType == CellType.Numeric)
                            dataRow[j + existColCount] = row.GetCell(j).NumericCellValue;
                        else
                            dataRow[j + existColCount] = row.GetCell(j).ToString();
                    }
                }
                dtDest.Rows.Add(dataRow);
            }
        }
        /// <summary>
        /// 从Excel中获取数据到DataTable
        /// </summary>
        /// <param name="strFileName">Excel文件全路径</param>
        /// <param name="table">要保存的实体表名</param>
        /// <param name="apply">是否需要提交到数据库</param>
        /// <param name="grid">需要导入的表格</param>
        /// <returns></returns>
        public static DataTable ImportToGrid(string strFileName, string table, bool apply, GridControl grid)
        {

            DataTable dtDest = (DataTable)grid.DataSource;
            GridView gridV = (GridView)grid.FocusedView;
            string fields = "";
            if (dtDest == null)
            {
                dtDest = new DataTable();
                foreach (GridColumn gc in gridV.Columns)
                {
                    if (gc.FieldName.Trim() != "")
                    {
                        fields = fields + gc.FieldName + ",";
                        dtDest.Columns.Add(gc.FieldName);
                    }
                }
                fields = fields.Substring(0, fields.Length - 1);
            }
            DataTable dtSource = Import(strFileName);
            if (dtSource.Rows.Count < 1)
            {
                MessageBox.Show("指定文件没有数据可导入", "警告", MessageBoxButtons.OK, MessageBoxIcon.Warning);
                return dtDest;
            }

            foreach (DataRow dr in dtSource.Rows)
            {
                DataRow dstRow = dtDest.NewRow();
                foreach (GridColumn gc in gridV.Columns)
                {
                    try
                    {
                        dstRow[gc.FieldName] = dr[gc.Caption];

                    }
                    catch (Exception ex)
                    {
                    }
                }

                dtDest.Rows.Add(dstRow);
            }
            //是否提交数据库
            if (apply == true)
            {
                try
                {
                    string sql = "select " + fields + " from " + table + " where 1<>1";
                    DbDataAdapter dat = SqlHelper.ExecuteAdapter(CommandType.Text, sql);
                    SqlCommandBuilder scb = new SqlCommandBuilder((SqlDataAdapter)dat);
                    DataTable datatb = new DataTable();
                    dat.Fill(datatb);
                    dat.Update(dtDest);
                    dtDest.AcceptChanges();
                }
                catch (Exception ex)
                {
                    MessageBox.Show("数据提交错误：\n" + ex.Message, "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }

            }
            grid.DataSource = dtDest;
            return dtDest;
        }
        /// <summary>
        /// 从Excel中获取数据到DataTable
        /// </summary>
        /// <param name="strFileName">Excel文件全路径(服务器路径)</param>
        /// <param name="SheetName">要获取数据的工作表名称</param>
        /// <param name="HeaderRowIndex">工作表标题行所在行号(从0开始)</param>
        /// <returns></returns>
        public static DataTable RenderDataTableFromExcel(string strFileName, string SheetName, int HeaderRowIndex)
        {
            using (FileStream file = new FileStream(strFileName, FileMode.Open, FileAccess.Read))
            {
                IWorkbook workbook = new HSSFWorkbook(file);
                return RenderDataTableFromExcel(workbook, SheetName, HeaderRowIndex);
            }
        }

        /// <summary>
        /// 从Excel中获取数据到DataTable
        /// </summary>
        /// <param name="strFileName">Excel文件全路径(服务器路径)</param>
        /// <param name="SheetIndex">要获取数据的工作表序号(从0开始)</param>
        /// <param name="HeaderRowIndex">工作表标题行所在行号(从0开始)</param>
        /// <returns></returns>
        public static DataTable RenderDataTableFromExcel(string strFileName, int SheetIndex, int HeaderRowIndex)
        {
            using (FileStream file = new FileStream(strFileName, FileMode.Open, FileAccess.Read))
            {
                IWorkbook workbook = new HSSFWorkbook(file);
                string SheetName = workbook.GetSheetName(SheetIndex);
                return RenderDataTableFromExcel(workbook, SheetName, HeaderRowIndex);
            }
        }

        /// <summary>
        /// 从Excel中获取数据到DataTable
        /// </summary>
        /// <param name="ExcelFileStream">Excel文件流</param>
        /// <param name="SheetName">要获取数据的工作表名称</param>
        /// <param name="HeaderRowIndex">工作表标题行所在行号(从0开始)</param>
        /// <returns></returns>
        public static DataTable RenderDataTableFromExcel(Stream ExcelFileStream, string SheetName, int HeaderRowIndex)
        {
            IWorkbook workbook = new HSSFWorkbook(ExcelFileStream);
            ExcelFileStream.Close();
            return RenderDataTableFromExcel(workbook, SheetName, HeaderRowIndex);
        }

        /// <summary>
        /// 从Excel中获取数据到DataTable
        /// </summary>
        /// <param name="ExcelFileStream">Excel文件流</param>
        /// <param name="SheetIndex">要获取数据的工作表序号(从0开始)</param>
        /// <param name="HeaderRowIndex">工作表标题行所在行号(从0开始)</param>
        /// <returns></returns>
        public static DataTable RenderDataTableFromExcel(Stream ExcelFileStream, int SheetIndex, int HeaderRowIndex)
        {
            IWorkbook workbook = new HSSFWorkbook(ExcelFileStream);
            ExcelFileStream.Close();
            string SheetName = workbook.GetSheetName(SheetIndex);
            return RenderDataTableFromExcel(workbook, SheetName, HeaderRowIndex);
        }

        /// <summary>
        /// 从Excel中获取数据到DataTable
        /// </summary>
        /// <param name="workbook">要处理的工作薄</param>
        /// <param name="SheetName">要获取数据的工作表名称</param>
        /// <param name="HeaderRowIndex">工作表标题行所在行号(从0开始)</param>
        /// <returns></returns>
        public static DataTable RenderDataTableFromExcel(IWorkbook workbook, string SheetName, int HeaderRowIndex)
        {
            ISheet sheet = workbook.GetSheet(SheetName);
            DataTable table = new DataTable();
            try
            {
                IRow headerRow = sheet.GetRow(HeaderRowIndex);
                int cellCount = headerRow.LastCellNum;

                for (int i = headerRow.FirstCellNum; i < cellCount; i++)
                {
                    DataColumn column = new DataColumn(headerRow.GetCell(i).StringCellValue);
                    table.Columns.Add(column);
                }

                int rowCount = sheet.LastRowNum;

                #region 循环各行各列,写入数据到DataTable
                for (int i = (sheet.FirstRowNum + 1); i < sheet.LastRowNum; i++)
                {
                    IRow row = sheet.GetRow(i);
                    DataRow dataRow = table.NewRow();
                    for (int j = row.FirstCellNum; j < cellCount; j++)
                    {
                        ICell cell = row.GetCell(j);
                        if (cell == null)
                        {
                            dataRow[j] = null;
                        }
                        else
                        {
                            //dataRow[j] = cell.ToString();
                            switch (cell.CellType)
                            {
                                case CellType.Blank:
                                    dataRow[j] = null;
                                    break;
                                case CellType.Boolean:
                                    dataRow[j] = cell.BooleanCellValue;
                                    break;
                                case CellType.Numeric:
                                    dataRow[j] = cell.ToString();
                                    break;
                                case CellType.String:
                                    dataRow[j] = cell.StringCellValue;
                                    break;
                                case CellType.Error:
                                    dataRow[j] = cell.ErrorCellValue;
                                    break;
                                case CellType.Formula:
                                default:
                                    dataRow[j] = "=" + cell.CellFormula;
                                    break;
                            }
                        }
                    }
                    table.Rows.Add(dataRow);
                    //dataRow[j] = row.GetCell(j).ToString();
                }
                #endregion
            }
            catch (System.Exception ex)
            {
                table.Clear();
                table.Columns.Clear();
                table.Columns.Add("出错了");
                DataRow dr = table.NewRow();
                dr[0] = ex.Message;
                table.Rows.Add(dr);
                return table;
            }
            finally
            {
                //sheet.Dispose();
                workbook = null;
                sheet = null;
            }
            #region 清除最后的空行
            for (int i = table.Rows.Count - 1; i > 0; i--)
            {
                bool isnull = true;
                for (int j = 0; j < table.Columns.Count; j++)
                {
                    if (table.Rows[i][j] != null)
                    {
                        if (table.Rows[i][j].ToString() != "")
                        {
                            isnull = false;
                            break;
                        }
                    }
                }
                if (isnull)
                {
                    table.Rows[i].Delete();
                }
            }
            #endregion
            return table;
        }

        #region 导出Excel
        /// <summary>
        /// 导出Excel
        /// </summary>
        /// <param name="GridControlPub"></param>
        /// <returns></returns>
        public static int SaveXls(DevExpress.XtraGrid.GridControl GridControlPub)
        {
            SaveFileDialog saveFileDialog = new SaveFileDialog();
            saveFileDialog.Title = "导出Excel";
            saveFileDialog.Filter = "Excel文件(*.xls)|*.xls|Excel2007|*.xlsx|PDF文件|*.PDF|RTF文件|*.RTF|HTML文件|*.html";
            DialogResult dialogResult = saveFileDialog.ShowDialog();
            if (dialogResult == DialogResult.OK)
            {
                DevExpress.XtraPrinting.XlsExportOptions options = new DevExpress.XtraPrinting.XlsExportOptions();
                if (saveFileDialog.FilterIndex == 1)
                {
                    GridControlPub.ExportToXls(saveFileDialog.FileName);
                }
                if (saveFileDialog.FilterIndex == 2)
                {
                    GridControlPub.ExportToXlsx(saveFileDialog.FileName);
                }
                if (saveFileDialog.FilterIndex == 3)
                {
                    GridControlPub.ExportToPdf(saveFileDialog.FileName);
                }
                if (saveFileDialog.FilterIndex == 4)
                {
                    GridControlPub.ExportToRtf(saveFileDialog.FileName);
                }
                if (saveFileDialog.FilterIndex == 5)
                {
                    GridControlPub.ExportToHtml(saveFileDialog.FileName);
                }
                XtraMessageBox.Show("保存成功！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
            }
            return 1;
        }
        #endregion
    }
}