Excel操作之------[Asp.net]常见数据导入Excel，Excel数据导入数据库解决方案，总有一款适合你！

原文url：http://www.cnblogs.com/wolf-sun/p/3589605.html

引言

项目中常用到将数据导入Excel，将Excel中的数据导入数据库的功能，曾经也查找过相关的内容，将曾经用过的方案总结一下。

方案一

NPOI

NPOI 是 POI 项目的 .NET 版本。POI是一个开源的Java读写Excel、WORD等微软OLE2组件文档的项目。
使用 NPOI 你就可以在没有安装 Office 或者相应环境的机器上对 WORD/EXCEL 文档进行读写。NPOI是构建在POI 3.x版本之上的，它可以在没有安装Office的情况下对Word/Excel文档进行读写操作。

优势

（一）传统操作Excel遇到的问题：
1、如果是.NET，需要在服务器端装Office，且及时更新它，以防漏洞，还需要设定权限允许.NET访问COM+，如果在导出过程中出问题可能导致服务器宕机。
2、Excel会把只包含数字的列进行类型转换，本来是文本型的，Excel会将其转成数值型的，比如编号000123会变成123。
3、导出时，如果字段内容以“-”或“=”开头，Excel会把它当成公式进行，会报错。
4、Excel会根据Excel文件前8行分析数据类型，如果正好你前8行某一列只是数字，那它会认为该列为数值型，自动将该列转变成类似1.42702E+17格式，日期列变成包含日期和数字的。
（二）使用NPOI的优势
1、您可以完全免费使用该框架
2、包含了大部分EXCEL的特性(单元格样式、数据格式、公式等等)
3、专业的技术支持服务(24*7全天候) (非免费)
4、支持处理的文件格式包括xls, xlsx, docx.
5、采用面向接口的设计架构( 可以查看 NPOI.SS 的命名空间)
6、同时支持文件的导入和导出
7、基于.net 2.0 也支持xlsx 和 docx格式(当然也支持.net 4.0)
8、来自全世界大量成功且真实的测试Cases
9、大量的实例代码
11、你不需要在服务器上安装微软的Office，可以避免版权问题。
12、使用起来比Office PIA的API更加方便，更人性化。
13、你不用去花大力气维护NPOI，NPOI Team会不断更新、改善NPOI，绝对省成本。
NPOI 之所以强大，并不是因为它支持导出Excel，而是因为它支持导入Excel，并能“理解”OLE2文档结构，这也是其他一些Excel读写库比较弱的方 面。通常，读入并理解结构远比导出来得复杂，因为导入你必须假设一切情况都是可能的，而生成你只要保证满足你自己需求就可以了，如果把导入需求和生成需求 比做两个集合，那么生成需求通常都是导入需求的子集，这一规律不仅体现在Excel读写库中，也体现在pdf读写库中，目前市面上大部分的pdf库仅支持 生成，不支持导入。

构成

 NPOI 1.2.x主要由POIFS、DDF、HPSF、HSSF、SS、Util六部分组成。

NPOI.POIFS	OLE2/ActiveX文档属性读写库
NPOI.DDF	Microsoft Office Drawing读写库
NPOI.HPSF	OLE2/ActiveX文档读写库
NPOI.HSSF	Microsoft Excel BIFF(Excel 97-2003)格式读写库
NPOI.SS	Excel公用接口及Excel公式计算引擎
NPOI.Util	基础类库，提供了很多实用功能，可用于其他读写文件格式项目的开发

 NPOI组成部分

NPOI 1.x的最新版为NPOI 1.2.5，其中包括了以下功能：

1、读写OLE2文档

2、读写DocummentSummaryInformation和SummaryInformation

3、基于LittleEndian的字节读写

4、读写Excel BIFF格式

5、识别并读写Excel BIFF中的常见Record，如RowRecord, StyleRecord, ExtendedFormatRecord

6、支持设置单元格的高、宽、样式等

7、支持调用部分Excel内建函数，比如说sum, countif以及计算符号

8、支持在生成的XLS内嵌入打印设置，比如说横向/纵向打印、缩放、使用的纸张等。

NPOI 2.0主要由SS, HPSF, DDF, HSSF, XWPF, XSSF, OpenXml4Net, OpenXmlFormats组成，具体列表如下：

Assembly名称	模块/命名空间	说明
NPOI.DLL	NPOI.POIFS	OLE2/ActiveX文档属性读写库
NPOI.DLL	NPOI.DDF	微软Office Drawing读写库
NPOI.DLL	NPOI.HPSF	OLE2/ActiveX文档读写库
NPOI.DLL	NPOI.HSSF	微软Excel BIFF(Excel 97-2003, doc)格式读写库
NPOI.DLL	NPOI.SS	Excel公用接口及Excel公式计算引擎
NPOI.DLL	NPOI.Util	基础类库，提供了很多实用功能，可用于其他读写文件格式项目的开发
NPOI.OOXML.DLL	NPOI.XSSF	Excel 2007(xlsx)格式读写库
NPOI.OOXML.DLL	NPOI.XWPF	Word 2007(docx)格式读写库
NPOI.OpenXml4Net.DLL	NPOI.OpenXml4Net	OpenXml底层zip包读写库
NPOI.OpenXmlFormats.DLL	NPOI.OpenXmlFormats	微软Office OpenXml对象关系库

(以上内容来自百度百科）从上表可知NPOI组件已支持excel2007，记得之前用的时候只支持excel2003。很久没研究过这玩意儿了。

案例

 官网地址：http://npoi.codeplex.com/，可以从官网下载NPOI2.X版本的。

 首先引入

ICSharpCode.SharpZipLib.dll

NPOI.dll

NPOI.OOXML.dll

NPOI.OpenXml4Net.dll

NPOI.OpenXmlFormats.dll

然后引入命名空间：

using NPOI.XSSF.UserModel;
using NPOI.SS.UserModel;
using NPOI.HSSF.UserModel;

      辅助类

using NPOI.XSSF.UserModel;
using NPOI.SS.UserModel;
using NPOI.HSSF.UserModel;
using System;
using System.Collections.Generic;
using System.Data;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using NPOI.SS.Formula.Eval;

namespace Wolfy.Common
{
    /// <summary>
    /// 使用NPOI组件
    /// 需引入ICSharpCode.SharpZipLib.dll/NPOI.dll/NPOI.OOXML.dll/NPOI.OpenXml4Net.dll/NPOI.OpenXmlFormats.dll
    /// office2007
    /// </summary>
    public class NPOIExcelHelper
    {
        /// <summary>
        /// 将Excel文件中的数据读出到DataTable中
        /// </summary>
        /// <param name="file"></param>
        /// <returns></returns>
        public static DataTable Excel2DataTable(string file, string sheetName, string tableName)
        {
            DataTable dt = new DataTable();
            IWorkbook workbook = null;
            using (FileStream fs = new FileStream(file, FileMode.Open, FileAccess.Read))
            {
                //office2003 HSSFWorkbook
                workbook = new XSSFWorkbook(fs);
            }
            ISheet sheet = workbook.GetSheet(sheetName);
            dt = Export2DataTable(sheet, 0, true);
            return dt;

        }
        /// <summary>
        /// 将指定sheet中的数据导入到datatable中
        /// </summary>
        /// <param name="sheet">指定需要导出的sheet</param>
        /// <param name="HeaderRowIndex">列头所在的行号，-1没有列头</param>
        /// <param name="needHeader"></param>
        /// <returns></returns>
        private static DataTable Export2DataTable(ISheet sheet, int HeaderRowIndex, bool needHeader)
        {
            DataTable dt = new DataTable();
            XSSFRow headerRow = null;
            int cellCount;
            try
            {
                if (HeaderRowIndex < 0 || !needHeader)
                {
                    headerRow = sheet.GetRow(0) as XSSFRow;
                    cellCount = headerRow.LastCellNum;
                    for (int i = headerRow.FirstCellNum; i <= cellCount; i++)
                    {
                        DataColumn column = new DataColumn(Convert.ToString(i));
                        dt.Columns.Add(column);
                    }
                }
                else
                {
                    headerRow = sheet.GetRow(HeaderRowIndex) as XSSFRow;
                    cellCount = headerRow.LastCellNum;
                    for (int i = headerRow.FirstCellNum; i <= cellCount; i++)
                    {
                        ICell cell = headerRow.GetCell(i);
                        if (cell == null)
                        {
                            break;//到最后 跳出循环
                        }
                        else
                        {
                            DataColumn column = new DataColumn(headerRow.GetCell(i).ToString());
                            dt.Columns.Add(column);
                        }

                    }
                }
                int rowCount = sheet.LastRowNum;
                for (int i = HeaderRowIndex + 1; i <= sheet.LastRowNum; i++)
                {
                    XSSFRow row = null;
                    if (sheet.GetRow(i) == null)
                    {
                        row = sheet.CreateRow(i) as XSSFRow;
                    }
                    else
                    {
                        row = sheet.GetRow(i) as XSSFRow;
                    }
                    DataRow dtRow = dt.NewRow();
                    for (int j = row.FirstCellNum; j <= cellCount; j++)
                    {
                        if (row.GetCell(j) != null)
                        {
                            switch (row.GetCell(j).CellType)
                            {
                                case CellType.Boolean:
                                    dtRow[j] = Convert.ToString(row.GetCell(j).BooleanCellValue);
                                    break;
                                case CellType.Error:
                                    dtRow[j] = ErrorEval.GetText(row.GetCell(j).ErrorCellValue);
                                    break;
                                case CellType.Formula:
                                    switch (row.GetCell(j).CachedFormulaResultType)
                                    {

                                        case CellType.Boolean:
                                            dtRow[j] = Convert.ToString(row.GetCell(j).BooleanCellValue);

                                            break;
                                        case CellType.Error:
                                            dtRow[j] = ErrorEval.GetText(row.GetCell(j).ErrorCellValue);

                                            break;
                                        case CellType.Numeric:
                                            dtRow[j] = Convert.ToString(row.GetCell(j).NumericCellValue);

                                            break;
                                        case CellType.String:
                                            string strFORMULA = row.GetCell(j).StringCellValue;
                                            if (strFORMULA != null && strFORMULA.Length > 0)
                                            {
                                                dtRow[j] = strFORMULA.ToString();
                                            }
                                            else
                                            {
                                                dtRow[j] = null;
                                            }
                                            break;
                                        default:
                                            dtRow[j] = "";
                                            break;
                                    }
                                    break;
                                case CellType.Numeric:
                                    if (DateUtil.IsCellDateFormatted(row.GetCell(j)))
                                    {
                                        dtRow[j] = DateTime.FromOADate(row.GetCell(j).NumericCellValue);
                                    }
                                    else
                                    {
                                        dtRow[j] = Convert.ToDouble(row.GetCell(j).NumericCellValue);
                                    }
                                    break;
                                case CellType.String:
                                    string str = row.GetCell(j).StringCellValue;
                                    if (!string.IsNullOrEmpty(str))
                                    {

                                        dtRow[j] = Convert.ToString(str);


                                    }
                                    else
                                    {
                                        dtRow[j] = null;
                                    }
                                    break;
                                default:
                                    dtRow[j] = "";
                                    break;
                            }

                        }
                    }
                    dt.Rows.Add(dtRow);
                }

            }
            catch (Exception)
            {

                return null;
            }
            return dt;
        }
        /// <summary>
        /// 将DataTable中的数据导入Excel文件中
        /// </summary>
        /// <param name="dt"></param>
        /// <param name="file"></param>
        public static void DataTable2Excel(DataTable dt, string file, string sheetName)
        {
            IWorkbook workbook = new XSSFWorkbook();
            ISheet sheet = workbook.CreateSheet(sheetName);
            IRow header = sheet.CreateRow(0);
            for (int i = 0; i < dt.Columns.Count; i++)
            {
                ICell cell = header.CreateCell(i);
                cell.SetCellValue(dt.Columns[i].ColumnName);
            }
            //数据
            for (int i = 0; i < dt.Rows.Count; i++)
            {
                IRow row = sheet.CreateRow(i + 1);
                for (int j = 0; j < dt.Columns.Count; j++)
                {
                    ICell cell = row.CreateCell(j);
                    cell.SetCellValue(dt.Rows[i][j].ToString());
                }
            }
            MemoryStream stream = new MemoryStream();
            workbook.Write(stream);
            byte[] buffer = stream.ToArray();
            using (FileStream fs = new FileStream(file, FileMode.Create, FileAccess.Write))
            {
                fs.Write(buffer, 0, buffer.Length);
                fs.Flush();
            }
        }
        /// <summary>
        /// 获取单元格类型
        /// </summary>
        /// <param name="cell"></param>
        /// <returns></returns>
        private static object GetValueType(XSSFCell cell)
        {
            if (cell == null)
            {
                return null;
            }
            switch (cell.CellType)
            {
                case CellType.Blank:
                    return null;
                case CellType.Boolean:
                    return cell.BooleanCellValue;
                case CellType.Error:
                    return cell.ErrorCellValue;

                case CellType.Numeric:
                    return cell.NumericCellValue;
                case CellType.String:
                    return cell.StringCellValue;
                case CellType.Formula:
                default:
                    return "=" + cell.StringCellValue;
            }
        }

    }
}

参考：http://www.cnblogs.com/Joetao/articles/3247909.html

测试结果

导入Excel，student.xlsx

导入DataTable，这里只将数据导入DataTable，导入数据库部分，就不再写了。

测试数据，向qq群里一朋友要的。大概有5w多条，lz机子是老爷机跑不起，只导出了其中的1k条。

方案二

利用office的com组件

首先添加com引用

引入命名空间

using Excel = Microsoft.Office.Interop.Excel;

 Com操作Excel辅助类

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Excel = Microsoft.Office.Interop.Excel;
using System.Web.UI;
using System.Web;
using System.Data;
namespace Wolfy.Common
{
    /// <summary>
    /// 使用com组件 操作Excel
    /// </summary>
    public class ComExcelHelper
    {
        private Excel.Application appExcel = null;
        private Excel.Workbook workbook = null;
        private Excel.Worksheet sheet = null;
        private DateTime dtBefore;
        private DateTime dtAfter;
        private string filePath;

        public string FilePath
        {
            get { return filePath; }
            set { filePath = value; }
        }
        private string timestamp;
        /// <summary>
        /// 以时间字符串作为保存文件的名称
        /// </summary>
        public string Timestamp
        {
            get { return timestamp; }
            set { timestamp = value; }
        }
        private object mValue = System.Reflection.Missing.Value;
        /// <summary>
        ///是否打开Excel界面 
        /// </summary>
        public bool Visible
        {
            set
            {
                appExcel.Visible = value;
            }
        }
        public ComExcelHelper()
        {
            this.dtBefore = DateTime.Now;
            appExcel = new Excel.Application();
            this.dtAfter = DateTime.Now;
            this.timestamp = DateTime.Now.ToShortDateString().Replace("-", "") + DateTime.Now.ToShortDateString().Replace("-", "") + DateTime.Now.Second.ToString() + DateTime.Now.Millisecond.ToString();
        }
        public ComExcelHelper(string strFilePath)
        {
            this.dtBefore = DateTime.Now;
            appExcel = new Excel.Application();
            this.dtAfter = DateTime.Now;
            this.workbook = (Excel.Workbook)appExcel.Workbooks.Open(strFilePath, mValue, false, mValue, mValue, mValue, mValue, mValue, mValue, mValue, mValue, mValue, mValue, mValue, mValue);
            this.timestamp = DateTime.Now.ToShortDateString().Replace("-", "") + DateTime.Now.ToShortDateString().Replace("-", "") + DateTime.Now.Second.ToString() + DateTime.Now.Millisecond.ToString();
        }
        public void Dispose()
        {
            try
            {
                System.Runtime.InteropServices.Marshal.ReleaseComObject(sheet);
                sheet = null;
                workbook.Close(false, mValue, mValue);
                System.Runtime.InteropServices.Marshal.ReleaseComObject(workbook);
                workbook = null;
                appExcel.Quit();
                System.Runtime.InteropServices.Marshal.ReleaseComObject(appExcel);
                appExcel = null;
                GC.Collect();
                GC.WaitForPendingFinalizers();
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                foreach (System.Diagnostics.Process pro in System.Diagnostics.Process.GetProcessesByName("Excel"))
                {
                    if (pro.StartTime > this.dtBefore && pro.StartTime < this.dtAfter)
                    {
                        pro.Kill();
                    }
                }
            }
            System.GC.SuppressFinalize(this);
        }
        /// <summary>
        /// 加载Excel
        /// </summary>
        public void Load()
        {
            if (workbook == null && this.filePath != null)
            {
                workbook = appExcel.Workbooks.Open(this.filePath, mValue, false, mValue, mValue, mValue, mValue, mValue, mValue, mValue, mValue, mValue, mValue, mValue, mValue);
            }
        }
        /// <summary>
        /// 加载Excel
        /// </summary>
        public void Load(string strFilePath)
        {
            if (workbook == null)
            {
                workbook = appExcel.Workbooks.Open(strFilePath, mValue, false, mValue, mValue, mValue, mValue, mValue, mValue, mValue, mValue, mValue, mValue, mValue, mValue);
            }
        }
        /// <summary>
        /// 新建工作表
        /// </summary>
        /// <param name="sheetName"></param>
        public void NewWorkSheet(string sheetName)
        {
            sheet = workbook.Sheets.Add(workbook.Sheets[1], mValue, mValue, mValue);
            sheet.Name = sheetName;
        }
        /// <summary>
        /// 在指定的单元格插入指定的值
        /// </summary>
        /// <param name="strCell">单元格 如"A4"</param>
        /// <param name="objValue">文本 数字等值</param>
        public void WriteCell(string strCell, object objValue)
        {
            sheet.get_Range(strCell, mValue).Value2 = objValue;
        }
        /// <summary>
        /// 在指定Range中插入指定的值
        /// </summary>
        /// <param name="strStartCell">Range的开始单元格</param>
        /// <param name="strEndCell">Range的结束单元格</param>
        /// <param name="objValue">文本、数字等值</param>
        public void WriteRange(string strStartCell, string strEndCell, object objValue)
        {
            sheet.get_Range(strStartCell, strEndCell).Value2 = objValue;
        }
        /**/
        /// <summary>
        /// 合并单元格，并在合并后的单元格中插入指定的值
        /// </summary>
        /// <param name="strStartCell"></param>
        /// <param name="strEndCell"></param>
        /// <param name="objValue"></param>
        public void WriteAfterMerge(string strStartCell, string strEndCell, object objValue)
        {
            sheet.get_Range(strStartCell, strEndCell).Merge(mValue);
            sheet.get_Range(strStartCell, mValue).Value2 = objValue;
        }

        /**/
        /// <summary>
        /// 在连续单元格中插入一个DataTable中的值
        /// </summary>
        /// <param name="strStartCell">开始的单元格</param>
        /// <param name="dtData">存储数据的DataTable</param>
        public void WriteTable(string strStartCell, System.Data.DataTable dtData)
        {
            object[,] arrData = new object[dtData.Rows.Count, dtData.Columns.Count];

            for (int i = 0; i < dtData.Rows.Count; i++)
                for (int j = 0; j < dtData.Columns.Count; j++)
                    arrData[i, j] = dtData.Rows[i][j];

            sheet.get_Range(strStartCell, this.GetEndCell(strStartCell, dtData.Rows.Count - 1, dtData.Columns.Count - 1)).Value2 = arrData;

            arrData = null;
        }

        /**/
        /// <summary>
        /// 在连续单元格中插入一个DataTable并作超级链接
        /// </summary>
        /// <param name="strStartCell">起始单元格标识符</param>
        /// <param name="dtData">存储数据的DataTable</param>
        /// <param name="strLinkField">链接的地址字段</param>
        /// <param name="strTextField">链接的文本字段</param>
        public void WriteTableAndLink(string strStartCell, System.Data.DataTable dtData, string strLinkField, string strTextField)
        {
            object[,] arrData = new object[dtData.Rows.Count, dtData.Columns.Count - 1];

            for (int i = 0; i < dtData.Rows.Count; i++)
            {
                for (int j = 0; j < dtData.Columns.Count; j++)
                {
                    if (j > dtData.Columns.IndexOf(strLinkField))
                        arrData[i, j - 1] = dtData.Rows[i][j];
                    else if (j < dtData.Columns.IndexOf(strLinkField))
                        arrData[i, j] = dtData.Rows[i][j];
                }
            }

            sheet.get_Range(strStartCell, this.GetEndCell(strStartCell, dtData.Rows.Count - 1, dtData.Columns.Count - 2)).Value2 = arrData;

            for (int i = 0; i < dtData.Rows.Count; i++)
                this.AddHyperLink(this.NtoL(this.LtoN(this.GetCellLetter(strStartCell)) + dtData.Columns.IndexOf(strTextField)) + System.Convert.ToString(this.GetCellNumber(strStartCell) + i), dtData.Rows[i][strLinkField].ToString() + ".htm", "点击查看详细", dtData.Rows[i][strTextField].ToString());

            arrData = null;
        }

        /**/
        /// <summary>
        /// 为单元格设置公式
        /// </summary>
        /// <param name="strCell">单元格标识符</param>
        /// <param name="strFormula">公式</param>
        public void SetFormula(string strCell, string strFormula)
        {
            sheet.get_Range(strCell, mValue).Formula = strFormula;
        }
        /**/
        /// <summary>
        /// 设置单元格或连续区域的字体为黑体
        /// </summary>
        /// <param name="strCell">单元格标识符</param>
        public void SetBold(string strCell)
        {
            sheet.get_Range(strCell, mValue).Font.Bold = true;
        }

        /**/
        /// <summary>
        /// 设置连续区域的字体为黑体
        /// </summary>
        /// <param name="strStartCell">开始单元格标识符</param>
        /// <param name="strEndCell">结束单元格标识符</param>
        public void SetBold(string strStartCell, string strEndCell)
        {
            sheet.get_Range(strStartCell, strEndCell).Font.Bold = true;
        }

        /**/
        /// <summary>
        /// 设置单元格或连续区域的字体颜色
        /// </summary>
        /// <param name="strCell">单元格标识符</param>
        /// <param name="clrColor">颜色</param>
        public void SetColor(string strCell, System.Drawing.Color clrColor)
        {
            sheet.get_Range(strCell, mValue).Font.Color = System.Drawing.ColorTranslator.ToOle(clrColor);
        }

        /**/
        /// <summary>
        /// 设置连续区域的字体颜色
        /// </summary>
        /// <param name="strStartCell">开始单元格标识符</param>
        /// <param name="strEndCell">结束单元格标识符</param>
        /// <param name="clrColor">颜色</param>
        public void SetColor(string strStartCell, string strEndCell, System.Drawing.Color clrColor)
        {
            sheet.get_Range(strStartCell, strEndCell).Font.Color = System.Drawing.ColorTranslator.ToOle(clrColor);
        }

        /**/
        /// <summary>
        /// 设置单元格或连续区域的边框：上下左右都为黑色连续边框
        /// </summary>
        /// <param name="strCell">单元格标识符</param>
        public void SetBorderAll(string strCell)
        {
            sheet.get_Range(strCell, mValue).Borders[Excel.XlBordersIndex.xlEdgeTop].Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.LightGray);
            sheet.get_Range(strCell, mValue).Borders[Excel.XlBordersIndex.xlEdgeTop].LineStyle = Excel.XlLineStyle.xlContinuous;

            sheet.get_Range(strCell, mValue).Borders[Excel.XlBordersIndex.xlEdgeBottom].Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.LightGray);
            sheet.get_Range(strCell, mValue).Borders[Excel.XlBordersIndex.xlEdgeBottom].LineStyle = Excel.XlLineStyle.xlContinuous;

            sheet.get_Range(strCell, mValue).Borders[Excel.XlBordersIndex.xlEdgeLeft].Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.LightGray);
            sheet.get_Range(strCell, mValue).Borders[Excel.XlBordersIndex.xlEdgeLeft].LineStyle = Excel.XlLineStyle.xlContinuous;

            sheet.get_Range(strCell, mValue).Borders[Excel.XlBordersIndex.xlEdgeRight].Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.LightGray);
            sheet.get_Range(strCell, mValue).Borders[Excel.XlBordersIndex.xlEdgeRight].LineStyle = Excel.XlLineStyle.xlContinuous;

            sheet.get_Range(strCell, mValue).Borders[Excel.XlBordersIndex.xlInsideHorizontal].Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.LightGray);
            sheet.get_Range(strCell, mValue).Borders[Excel.XlBordersIndex.xlInsideHorizontal].LineStyle = Excel.XlLineStyle.xlContinuous;

            sheet.get_Range(strCell, mValue).Borders[Excel.XlBordersIndex.xlInsideVertical].Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.LightGray);
            sheet.get_Range(strCell, mValue).Borders[Excel.XlBordersIndex.xlInsideVertical].LineStyle = Excel.XlLineStyle.xlContinuous;


        }

        /**/
        /// <summary>
        /// 设置连续区域的边框：上下左右都为黑色连续边框
        /// </summary>
        /// <param name="strStartCell">开始单元格标识符</param>
        /// <param name="strEndCell">结束单元格标识符</param>
        public void SetBorderAll(string strStartCell, string strEndCell)
        {
            sheet.get_Range(strStartCell, strEndCell).Borders[Excel.XlBordersIndex.xlEdgeTop].Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.LightGray);
            sheet.get_Range(strStartCell, strEndCell).Borders[Excel.XlBordersIndex.xlEdgeTop].LineStyle = Excel.XlLineStyle.xlContinuous;

            sheet.get_Range(strStartCell, strEndCell).Borders[Excel.XlBordersIndex.xlEdgeBottom].Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.LightGray);
            sheet.get_Range(strStartCell, strEndCell).Borders[Excel.XlBordersIndex.xlEdgeBottom].LineStyle = Excel.XlLineStyle.xlContinuous;

            sheet.get_Range(strStartCell, strEndCell).Borders[Excel.XlBordersIndex.xlEdgeLeft].Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.LightGray);
            sheet.get_Range(strStartCell, strEndCell).Borders[Excel.XlBordersIndex.xlEdgeLeft].LineStyle = Excel.XlLineStyle.xlContinuous;

            sheet.get_Range(strStartCell, strEndCell).Borders[Excel.XlBordersIndex.xlEdgeRight].Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.LightGray);
            sheet.get_Range(strStartCell, strEndCell).Borders[Excel.XlBordersIndex.xlEdgeRight].LineStyle = Excel.XlLineStyle.xlContinuous;

            sheet.get_Range(strStartCell, strEndCell).Borders[Excel.XlBordersIndex.xlInsideHorizontal].Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.LightGray);
            sheet.get_Range(strStartCell, strEndCell).Borders[Excel.XlBordersIndex.xlInsideHorizontal].LineStyle = Excel.XlLineStyle.xlContinuous;

            sheet.get_Range(strStartCell, strEndCell).Borders[Excel.XlBordersIndex.xlInsideVertical].Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.LightGray);
            sheet.get_Range(strStartCell, strEndCell).Borders[Excel.XlBordersIndex.xlInsideVertical].LineStyle = Excel.XlLineStyle.xlContinuous;
        }

        /**/
        /// <summary>
        /// 设置单元格或连续区域水平居左
        /// </summary>
        /// <param name="strCell">单元格标识符</param>
        public void SetHAlignLeft(string strCell)
        {
            sheet.get_Range(strCell, mValue).HorizontalAlignment = Excel.XlHAlign.xlHAlignLeft;
        }

        /**/
        /// <summary>
        /// 设置连续区域水平居左
        /// </summary>
        /// <param name="strStartCell">开始单元格标识符</param>
        /// <param name="strEndCell">结束单元格标识符</param>
        public void SetHAlignLeft(string strStartCell, string strEndCell)
        {
            sheet.get_Range(strStartCell, strEndCell).HorizontalAlignment = Excel.XlHAlign.xlHAlignLeft;
        }

        /**/
        /// <summary>
        /// 设置单元格或连续区域水平居左
        /// </summary>
        /// <param name="strCell">单元格标识符</param>
        public void SetHAlignCenter(string strCell)
        {
            sheet.get_Range(strCell, mValue).HorizontalAlignment = Excel.XlHAlign.xlHAlignCenter;
        }

        /**/
        /// <summary>
        /// 设置连续区域水平居中
        /// </summary>
        /// <param name="strStartCell">开始单元格标识符</param>
        /// <param name="strEndCell">结束单元格标识符</param>
        public void SetHAlignCenter(string strStartCell, string strEndCell)
        {
            sheet.get_Range(strStartCell, strEndCell).HorizontalAlignment = Excel.XlHAlign.xlHAlignCenter;
        }

        /**/
        /// <summary>
        /// 设置单元格或连续区域水平居右
        /// </summary>
        /// <param name="strCell">单元格标识符</param>
        public void SetHAlignRight(string strCell)
        {
            sheet.get_Range(strCell, mValue).HorizontalAlignment = Excel.XlHAlign.xlHAlignRight;
        }

        /**/
        /// <summary>
        /// 设置连续区域水平居右
        /// </summary>
        /// <param name="strStartCell">开始单元格标识符</param>
        /// <param name="strEndCell">结束单元格标识符</param>
        public void SetHAlignRight(string strStartCell, string strEndCell)
        {
            sheet.get_Range(strStartCell, strEndCell).HorizontalAlignment = Excel.XlHAlign.xlHAlignRight;
        }

        /**/
        /// <summary>
        /// 设置单元格或连续区域的显示格式
        /// </summary>
        /// <param name="strCell">单元格标识符</param>
        /// <param name="strNF">如"#,##0.00"的显示格式</param>
        public void SetNumberFormat(string strCell, string strNF)
        {
            sheet.get_Range(strCell, mValue).NumberFormat = strNF;
        }

        /**/
        /// <summary>
        /// 设置连续区域的显示格式
        /// </summary>
        /// <param name="strStartCell">开始单元格标识符</param>
        /// <param name="strEndCell">结束单元格标识符</param>
        /// <param name="strNF">如"#,##0.00"的显示格式</param>
        public void SetNumberFormat(string strStartCell, string strEndCell, string strNF)
        {
            sheet.get_Range(strStartCell, strEndCell).NumberFormat = strNF;
        }

        /**/
        /// <summary>
        /// 设置单元格或连续区域的字体大小
        /// </summary>
        /// <param name="strCell">单元格或连续区域标识符</param>
        /// <param name="intFontSize"></param>
        public void SetFontSize(string strCell, int intFontSize)
        {
            sheet.get_Range(strCell, mValue).Font.Size = intFontSize.ToString();
        }

        /**/
        /// <summary>
        /// 设置连续区域的字体大小
        /// </summary>
        /// <param name="strStartCell">开始单元格标识符</param>
        /// <param name="strEndCell">结束单元格标识符</param>
        /// <param name="intFontSize">字体大小</param>
        public void SetFontSize(string strStartCell, string strEndCell, int intFontSize)
        {
            sheet.get_Range(strStartCell, strEndCell).Font.Size = intFontSize.ToString();
        }

        /**/
        /// <summary>
        /// 设置列宽
        /// </summary>
        /// <param name="strColID">列标识，如A代表第一列</param>
        /// <param name="decWidth">宽度</param>
        public void SetColumnWidth(string strColID, double dblWidth)
        {
            ((Excel.Range)sheet.Columns.GetType().InvokeMember("Item", System.Reflection.BindingFlags.GetProperty, null, sheet.Columns, new object[] { (strColID + ":" + strColID).ToString() })).ColumnWidth = dblWidth;
        }

        /**/
        /// <summary>
        /// 为单元格添加超级链接
        /// </summary>
        /// <param name="strCell">单元格标识符</param>
        /// <param name="strAddress">链接地址</param>
        /// <param name="strTip">屏幕提示</param>
        /// <param name="strText">链接文本</param>
        public void AddHyperLink(string strCell, string strAddress, string strTip, string strText)
        {
            sheet.Hyperlinks.Add(sheet.get_Range(strCell, mValue), strAddress, mValue, strTip, strText);
        }

        /**/
        /// <summary>
        /// 已知开始的单元格标识，求intR行、intColumn列后的单元格标识
        /// </summary>
        /// <param name="strStartCell">开始单元格标识</param>
        /// <param name="intR">行数</param>
        /// <param name="intC">列数</param>
        /// <returns>单元格标识符结果</returns>
        public string GetEndCell(string strStartCell, int intR, int intC)
        {
            string endcell = string.Empty;
            System.Text.RegularExpressions.Regex regex = new System.Text.RegularExpressions.Regex(@"^(?<vLetter>[A-Z]+)(?<vNumber>\d+)");
            if (regex.IsMatch(strStartCell))
            {
                endcell = this.NtoL(this.LtoN(regex.Match(strStartCell).Result("${vLetter}")) + intC) + System.Convert.ToString((System.Convert.ToInt32(regex.Match(strStartCell).Result("${vNumber}")) + intR));
            }
            return endcell;

        }

        /**/
        /// <summary>
        /// 获取单元格标识符中的字母
        /// </summary>
        /// <param name="strCell">单元格标识符</param>
        /// <returns>单元格标识符对应的字母</returns>
        public string GetCellLetter(string strCell)
        {
            System.Text.RegularExpressions.Regex regex = new System.Text.RegularExpressions.Regex(@"^(?<vLetter>[A-Z]+)(?<vNumber>\d+)");
            return regex.Match(strCell).Result("${vLetter}");
        }

        /**/
        /// <summary>
        /// 获取单元格标识符中的数字
        /// </summary>
        /// <param name="strCell">单元格标识符</param>
        public int GetCellNumber(string strCell)
        {
            System.Text.RegularExpressions.Regex regex = new System.Text.RegularExpressions.Regex(@"^(?<vLetter>[A-Z]+)(?<vNumber>\d+)");
            return System.Convert.ToInt32(regex.Match(strCell).Result("${vNumber}"));
        }


        /**/
        /// <summary>
        /// 另存为xls文件
        /// </summary>
        /// <param name="strFilePath">文件路径</param>
        public void SaveAs(string strFilePath)
        {
            workbook.SaveCopyAs(strFilePath);

        }

        /**/
        /// <summary>
        /// 另存为xls文件
        /// </summary>
        /// <param name="strFilePath">文件路径</param>
        public void Save()
        {
            workbook.Save();

        }
        /// <summary>
        /// 将Excel中的数据 读入DataTable中
        /// </summary>
        /// <param name="filePath">excel文件的路径</param>
        /// <param name="dtName">datatable的名字</param>
        /// <param name="headName">表头，以逗号分隔</param>
        /// <returns></returns>
        public DataTable ReadExcel2DataTable(string filePath, string dtName, string headName)
        {
            workbook = this.appExcel.Workbooks.Open(filePath, mValue, mValue, mValue, mValue, mValue, mValue, mValue, mValue, mValue, mValue, mValue, mValue, mValue, mValue);
            sheet = workbook.Worksheets.get_Item(1);
            DataTable dt = new DataTable(dtName);
            string[] heads = !string.IsNullOrEmpty(headName) ? headName.Split(',') : null;
            if (heads != null)
            {
                for (int i = 0; i < heads.Length; i++)
                {
                    DataColumn column = new DataColumn(heads[i]);
                    //这里没对类型 进行处理
                    dt.Columns.Add(column);
                }
                for (int i = 0; i <= sheet.UsedRange.Rows.Count; i++)
                {
                    DataRow dr = dt.NewRow();
                    for (int j = 0; j < heads.Length; j++)
                    {
                        string cellString = NtoL(j + 1);
                        dr[heads[j]] = sheet.get_Range(cellString + (i + 1)).Value2;

                    }
                    dt.Rows.Add(dr);

                }
            }
            else
            {
                for (int i = 0; i <= sheet.UsedRange.Rows.Count; i++)
                {
                    DataRow dr = dt.NewRow();
                    for (int j = 0; j <= sheet.UsedRange.Columns.Count; j++)
                    {
                        dr[j + 1] = sheet.get_Range(NtoL(j + 1) + (i + 1)).Value2;
                    }
                    dt.Rows.Add(dr);
                }
            }
            return dt;
        }
        /**/
        /// <summary>
        /// 另存为html文件
        /// </summary>
        /// <param name="strFilePath">文件路径</param>
        public void SaveHtml(string strFilePath)
        {
            workbook.SaveAs(strFilePath, Excel.XlFileFormat.xlHtml, mValue, mValue, mValue, mValue, Excel.XlSaveAsAccessMode.xlNoChange, mValue, mValue, mValue, mValue, mValue);
        }

        public void CreateHtmlFile()
        {

        }






        /**/
        /// <summary>
        /// 字母转换为数字，Excel列头，如A-1;AA-27
        /// </summary>
        /// <param name="strLetter">字母</param>
        /// <returns>字母对应的数字</returns>
        private int LtoN(string strLetter)
        {
            int intRtn = 0;

            string strLetters = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";

            if (strLetter.Length == 2)
                intRtn += (strLetters.IndexOf(strLetter.Substring(0, 1)) + 1) * 26;

            intRtn += strLetters.IndexOf(strLetter.Substring(strLetter.Length - 1, 1)) + 1;

            return intRtn;

        }

        /**/
        /// <summary>
        /// 数字转换为字母，Excel列头，如1-A;27-AA
        /// </summary>
        /// <param name="intNumber">数字</param>
        /// <returns>数字对应的字母</returns>
        private string NtoL(int intNumber)
        {
            if (intNumber > 702)
                return String.Empty;

            if (intNumber == 702)
                return "ZZ";

            string strRtn = String.Empty;

            string strLetters = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";

            if (intNumber > 26)
                strRtn = strLetters.Substring(intNumber / 26 - 1, 1);

            strRtn += strLetters.Substring((intNumber % 26) - 1, 1);

            return strRtn;
        }

    }
}