/******************************************************************* * 版权所有： * 类 名 称：ExcelHelper * 作 者：zk * 电子邮箱： * 创建日期：2012/2/25 10:17:21 * 修改描述：从excel导入datatable时，可以导入日期类型。 * 但对excel中的日期类型有一定要求，要求至少是yyyy/mm/dd类型日期； * * 修改描述：将datatable导入excel中，对类型为字符串的数字进行处理， * 导出数字为double类型； * * * *******************************************************************/ using System; using System.Collections.Generic; using System.Data; using System.IO; using System.Text; using System.Web; using NPOI; using NPOI.HPSF; using NPOI.HSSF; using NPOI.HSSF.Record.Formula.Eval; using NPOI.HSSF.UserModel; using NPOI.HSSF.Util; using NPOI.POIFS; using NPOI.SS.UserModel; using NPOI.Util; using NPOI.SS; using NPOI.DDF; using NPOI.SS.Util; using System.Collections; using System.Text.RegularExpressions; using System.Runtime.InteropServices; using System.Windows.Forms; namespace TopOneProtocolCustomerManagement { public static class ExcelHelper { //private static WriteLog wl = new WriteLog();a #region 从datatable中将数据导出到excel /// <summary> /// DataTable导出到Excel的MemoryStream /// </summary> /// <param name="dtSource">源DataTable</param> /// <param name="strHeaderText">表头文本</param> public static MemoryStream ExportDT(DataTable dtSource, string strHeaderText) { HSSFWorkbook workbook = new HSSFWorkbook(); HSSFSheet sheet = workbook.CreateSheet() as HSSFSheet; #region 右击文件 属性信息 { DocumentSummaryInformation dsi = PropertySetFactory.CreateDocumentSummaryInformation(); dsi.Company = "http://www.top1.cn/"; workbook.DocumentSummaryInformation = dsi; SummaryInformation si = PropertySetFactory.CreateSummaryInformation(); si.Author = "至尊研发部"; //填加xls文件作者信息 si.ApplicationName = "ERP项目组"; //填加xls文件创建程序信息 si.LastAuthor = ""; //填加xls文件最后保存者信息 si.Comments = ""; //填加xls文件作者信息 si.Subject = "至尊租车企业账号信息"; //填加文件主题信息 si.CreateDateTime = DateTime.Now; workbook.SummaryInformation = si; } #endregion HSSFCellStyle dateStyle = workbook.CreateCellStyle() as HSSFCellStyle; HSSFDataFormat format = workbook.CreateDataFormat() as HSSFDataFormat; dateStyle.DataFormat = format.GetFormat("yyyy-mm-dd"); //取得列宽 int[] arrColWidth = new int[dtSource.Columns.Count]; 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 < dtSource.Columns.Count; j++) { int intTemp = Encoding.GetEncoding(936).GetBytes(dtSource.Rows[i][j].ToString()).Length; if (intTemp > arrColWidth[j]) { arrColWidth[j] = intTemp; } } } 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() as HSSFSheet; } #region 表头及样式 { HSSFRow headerRow = sheet.CreateRow(0) as HSSFRow; headerRow.HeightInPoints = 25; headerRow.CreateCell(0).SetCellValue(strHeaderText); HSSFCellStyle headStyle = workbook.CreateCellStyle() as HSSFCellStyle; headStyle.Alignment = NPOI.SS.UserModel.HorizontalAlignment.CENTER; HSSFFont font = workbook.CreateFont() as HSSFFont; 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)); //headerRow.Dispose(); } #endregion #region 列头及样式 { HSSFRow headerRow = sheet.CreateRow(1) as HSSFRow; HSSFCellStyle headStyle = workbook.CreateCellStyle() as HSSFCellStyle; headStyle.Alignment = NPOI.SS.UserModel.HorizontalAlignment.CENTER; HSSFFont font = workbook.CreateFont() as HSSFFont; font.FontHeightInPoints = 10; font.Boldweight = 700; headStyle.SetFont(font); 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); } //headerRow.Dispose(); } #endregion rowIndex = 2; } #endregion #region 填充内容 HSSFRow dataRow = sheet.CreateRow(rowIndex) as HSSFRow; foreach (DataColumn column in dtSource.Columns) { HSSFCell newCell = dataRow.CreateCell(column.Ordinal) as HSSFCell; string drValue = row[column].ToString(); switch (column.DataType.ToString()) { case "System.String": //字符串类型 double result; if (isNumeric(drValue, out result)) { double.TryParse(drValue, out result); newCell.SetCellValue(result); break; } else { 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; } newCell.CellStyle.BorderBottom = CellBorderType.THIN; newCell.CellStyle.BorderLeft = CellBorderType.THIN; newCell.CellStyle.BorderRight = CellBorderType.THIN; newCell.CellStyle.BorderTop = CellBorderType.THIN; //对其方式 //newCell.CellStyle.Alignment = NPOI.SS.UserModel.HorizontalAlignment.GENERAL; //newCell.CellStyle.VerticalAlignment = VerticalAlignment.CENTER; } #endregion rowIndex++; } using (MemoryStream ms = new MemoryStream()) { workbook.Write(ms); ms.Flush(); ms.Position = 0; sheet.Dispose(); workbook.Dispose(); return ms; } } /// <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> public static void ExportDTtoExcel(DataTable dtSource, string strHeaderText, string strFileName) { if (!CheckFiles(strFileName)) { MessageBox.Show("文件被站用，请关闭文件 " + strFileName); return; } using (MemoryStream ms = ExportDT(dtSource, strHeaderText)) { using (FileStream fs = new FileStream(strFileName, FileMode.Create, FileAccess.Write)) { byte[] data = ms.ToArray(); fs.Write(data, 0, data.Length); fs.Flush(); } } } #endregion #region 从excel中将数据导出到datatable /// <summary>读取excel /// 默认第一行为标头 /// </summary> /// <param name="strFileName">excel文档路径</param> /// <returns></returns> public static DataTable ImportExceltoDt(string strFileName) { DataTable dt = new DataTable(); HSSFWorkbook hssfworkbook; using (FileStream file = new FileStream(strFileName, FileMode.Open, FileAccess.Read)) { hssfworkbook = new HSSFWorkbook(file); } HSSFSheet sheet = hssfworkbook.GetSheetAt(0) as HSSFSheet; dt = ImportDt(sheet, 0, true); return dt; } /// <summary> /// 读取excel /// </summary> /// <param name="strFileName">excel文件路径</param> /// <param name="sheet">需要导出的sheet</param> /// <param name="HeaderRowIndex">列头所在行号，-1表示没有列头</param> /// <returns></returns> public static DataTable ImportExceltoDt(string strFileName, string SheetName, int HeaderRowIndex) { HSSFWorkbook workbook; using (FileStream file = new FileStream(strFileName, FileMode.Open, FileAccess.Read)) { workbook = new HSSFWorkbook(file); } HSSFSheet sheet = workbook.GetSheet(SheetName) as HSSFSheet; DataTable table = new DataTable(); table = ImportDt(sheet, HeaderRowIndex, true); //ExcelFileStream.Close(); workbook = null; sheet = null; return table; } /// <summary> /// 读取excel /// </summary> /// <param name="strFileName">excel文件路径</param> /// <param name="sheet">需要导出的sheet序号</param> /// <param name="HeaderRowIndex">列头所在行号，-1表示没有列头</param> /// <returns></returns> public static DataTable ImportExceltoDt(string strFileName, int SheetIndex, int HeaderRowIndex) { HSSFWorkbook workbook; using (FileStream file = new FileStream(strFileName, FileMode.Open, FileAccess.Read)) { workbook = new HSSFWorkbook(file); } HSSFSheet sheet = workbook.GetSheetAt(SheetIndex) as HSSFSheet; DataTable table = new DataTable(); table = ImportDt(sheet, HeaderRowIndex, true); //ExcelFileStream.Close(); workbook = null; sheet = null; return table; } /// <summary> /// 读取excel /// </summary> /// <param name="strFileName">excel文件路径</param> /// <param name="sheet">需要导出的sheet</param> /// <param name="HeaderRowIndex">列头所在行号，-1表示没有列头</param> /// <returns></returns> public static DataTable ImportExceltoDt(string strFileName, string SheetName, int HeaderRowIndex, bool needHeader) { HSSFWorkbook workbook; using (FileStream file = new FileStream(strFileName, FileMode.Open, FileAccess.Read)) { workbook = new HSSFWorkbook(file); } HSSFSheet sheet = workbook.GetSheet(SheetName) as HSSFSheet; DataTable table = new DataTable(); table = ImportDt(sheet, HeaderRowIndex, needHeader); //ExcelFileStream.Close(); workbook = null; sheet = null; return table; } /// <summary> /// 读取excel /// </summary> /// <param name="strFileName">excel文件路径</param> /// <param name="sheet">需要导出的sheet序号</param> /// <param name="HeaderRowIndex">列头所在行号，-1表示没有列头</param> /// <returns></returns> public static DataTable ImportExceltoDt(string strFileName, int SheetIndex, int HeaderRowIndex, bool needHeader) { HSSFWorkbook workbook; using (FileStream file = new FileStream(strFileName, FileMode.Open, FileAccess.Read)) { workbook = new HSSFWorkbook(file); } HSSFSheet sheet = workbook.GetSheetAt(SheetIndex) as HSSFSheet; DataTable table = new DataTable(); table = ImportDt(sheet, HeaderRowIndex, needHeader); //ExcelFileStream.Close(); workbook = null; sheet = null; return table; } /// <summary> /// 将制定sheet中的数据导出到datatable中 /// </summary> /// <param name="sheet">需要导出的sheet</param> /// <param name="HeaderRowIndex">列头所在行号，-1表示没有列头</param> /// <returns></returns> static DataTable ImportDt(HSSFSheet sheet, int HeaderRowIndex, bool needHeader) { DataTable table = new DataTable(); HSSFRow headerRow; int cellCount; try { if (HeaderRowIndex < 0 || !needHeader) { headerRow = sheet.GetRow(0) as HSSFRow; cellCount = headerRow.LastCellNum; for (int i = headerRow.FirstCellNum; i <= cellCount; i++) { DataColumn column = new DataColumn(Convert.ToString(i)); table.Columns.Add(column); } } else { headerRow = sheet.GetRow(HeaderRowIndex) as HSSFRow; cellCount = headerRow.LastCellNum; for (int i = headerRow.FirstCellNum; i <= cellCount; i++) { if (headerRow.GetCell(i) == null) { if (table.Columns.IndexOf(Convert.ToString(i)) > 0) { DataColumn column = new DataColumn(Convert.ToString("重复列名" + i)); table.Columns.Add(column); } else { DataColumn column = new DataColumn(Convert.ToString(i)); table.Columns.Add(column); } } else if (table.Columns.IndexOf(headerRow.GetCell(i).ToString()) > 0) { DataColumn column = new DataColumn(Convert.ToString("重复列名" + i)); table.Columns.Add(column); } else { DataColumn column = new DataColumn(headerRow.GetCell(i).ToString()); table.Columns.Add(column); } } } int rowCount = sheet.LastRowNum; for (int i = (HeaderRowIndex + 1); i <= sheet.LastRowNum; i++) { try { HSSFRow row; if (sheet.GetRow(i) == null) { row = sheet.CreateRow(i) as HSSFRow; } else { row = sheet.GetRow(i) as HSSFRow; } DataRow dataRow = table.NewRow(); for (int j = row.FirstCellNum; j <= cellCount; j++) { try { if (row.GetCell(j) != null) { switch (row.GetCell(j).CellType) { case CellType.STRING: string str = row.GetCell(j).StringCellValue; if (str != null && str.Length > 0) { dataRow[j] = str.ToString(); } else { dataRow[j] = null; } break; case CellType.NUMERIC: if (DateUtil.IsCellDateFormatted(row.GetCell(j))) { dataRow[j] = DateTime.FromOADate(row.GetCell(j).NumericCellValue); } else { dataRow[j] = Convert.ToDouble(row.GetCell(j).NumericCellValue); } break; case CellType.BOOLEAN: dataRow[j] = Convert.ToString(row.GetCell(j).BooleanCellValue); break; case CellType.ERROR: dataRow[j] = ErrorEval.GetText(row.GetCell(j).ErrorCellValue); break; case CellType.FORMULA: switch (row.GetCell(j).CachedFormulaResultType) { case CellType.STRING: string strFORMULA = row.GetCell(j).StringCellValue; if (strFORMULA != null && strFORMULA.Length > 0) { dataRow[j] = strFORMULA.ToString(); } else { dataRow[j] = null; } break; case CellType.NUMERIC: dataRow[j] = Convert.ToString(row.GetCell(j).NumericCellValue); break; case CellType.BOOLEAN: dataRow[j] = Convert.ToString(row.GetCell(j).BooleanCellValue); break; case CellType.ERROR: dataRow[j] = ErrorEval.GetText(row.GetCell(j).ErrorCellValue); break; default: dataRow[j] = ""; break; } break; default: dataRow[j] = ""; break; } } } catch (Exception exception) { //wl.WriteLogs(exception.ToString()); } } table.Rows.Add(dataRow); } catch (Exception exception) { //wl.WriteLogs(exception.ToString()); } } } catch (Exception exception) { //wl.WriteLogs(exception.ToString()); } return table; } #endregion #region 更新excel中的数据 /// <summary> /// 更新Excel表格 /// </summary> /// <param name="outputFile">需更新的excel表格路径</param> /// <param name="sheetname">sheet名</param> /// <param name="updateData">需更新的数据</param> /// <param name="coluid">需更新的列号</param> /// <param name="rowid">需更新的开始行号</param> public static void UpdateExcel(string outputFile, string sheetname, string[] updateData, int coluid, int rowid) { FileStream readfile = new FileStream(outputFile, FileMode.Open, FileAccess.Read); HSSFWorkbook hssfworkbook = new HSSFWorkbook(readfile); ISheet sheet1 = hssfworkbook.GetSheet(sheetname); for (int i = 0; i < updateData.Length; i++) { try { if (sheet1.GetRow(i + rowid) == null) { sheet1.CreateRow(i + rowid); } if (sheet1.GetRow(i + rowid).GetCell(coluid) == null) { sheet1.GetRow(i + rowid).CreateCell(coluid); } sheet1.GetRow(i + rowid).GetCell(coluid).SetCellValue(updateData[i]); } catch (Exception ex) { // wl.WriteLogs(ex.ToString()); throw; } } try { readfile.Close(); FileStream writefile = new FileStream(outputFile, FileMode.Create, FileAccess.Write); hssfworkbook.Write(writefile); writefile.Close(); } catch (Exception ex) { // wl.WriteLogs(ex.ToString()); } } /// <summary> /// 更新Excel表格 /// </summary> /// <param name="outputFile">需更新的excel表格路径</param> /// <param name="sheetname">sheet名</param> /// <param name="updateData">需更新的数据</param> /// <param name="coluids">需更新的列号</param> /// <param name="rowid">需更新的开始行号</param> public static void UpdateExcel(string outputFile, string sheetname, string[][] updateData, int[] coluids, int rowid) { FileStream readfile = new FileStream(outputFile, FileMode.Open, FileAccess.Read); HSSFWorkbook hssfworkbook = new HSSFWorkbook(readfile); readfile.Close(); ISheet sheet1 = hssfworkbook.GetSheet(sheetname); for (int j = 0; j < coluids.Length; j++) { for (int i = 0; i < updateData[j].Length; i++) { try { if (sheet1.GetRow(i + rowid) == null) { sheet1.CreateRow(i + rowid); } if (sheet1.GetRow(i + rowid).GetCell(coluids[j]) == null) { sheet1.GetRow(i + rowid).CreateCell(coluids[j]); } sheet1.GetRow(i + rowid).GetCell(coluids[j]).SetCellValue(updateData[j][i]); } catch (Exception ex) { // wl.WriteLogs(ex.ToString()); } } } try { FileStream writefile = new FileStream(outputFile, FileMode.Create); hssfworkbook.Write(writefile); writefile.Close(); } catch (Exception ex) { //wl.WriteLogs(ex.ToString()); } } /// <summary> /// 更新Excel表格 /// </summary> /// <param name="outputFile">需更新的excel表格路径</param> /// <param name="sheetname">sheet名</param> /// <param name="updateData">需更新的数据</param> /// <param name="coluid">需更新的列号</param> /// <param name="rowid">需更新的开始行号</param> public static void UpdateExcel(string outputFile, string sheetname, double[] updateData, int coluid, int rowid) { FileStream readfile = new FileStream(outputFile, FileMode.Open, FileAccess.Read); HSSFWorkbook hssfworkbook = new HSSFWorkbook(readfile); ISheet sheet1 = hssfworkbook.GetSheet(sheetname); for (int i = 0; i < updateData.Length; i++) { try { if (sheet1.GetRow(i + rowid) == null) { sheet1.CreateRow(i + rowid); } if (sheet1.GetRow(i + rowid).GetCell(coluid) == null) { sheet1.GetRow(i + rowid).CreateCell(coluid); } sheet1.GetRow(i + rowid).GetCell(coluid).SetCellValue(updateData[i]); } catch (Exception ex) { //wl.WriteLogs(ex.ToString()); throw; } } try { readfile.Close(); FileStream writefile = new FileStream(outputFile, FileMode.Create, FileAccess.Write); hssfworkbook.Write(writefile); writefile.Close(); } catch (Exception ex) { //wl.WriteLogs(ex.ToString()); } } /// <summary> /// 更新Excel表格 /// </summary> /// <param name="outputFile">需更新的excel表格路径</param> /// <param name="sheetname">sheet名</param> /// <param name="updateData">需更新的数据</param> /// <param name="coluids">需更新的列号</param> /// <param name="rowid">需更新的开始行号</param> public static void UpdateExcel(string outputFile, string sheetname, double[][] updateData, int[] coluids, int rowid) { FileStream readfile = new FileStream(outputFile, FileMode.Open, FileAccess.Read); HSSFWorkbook hssfworkbook = new HSSFWorkbook(readfile); readfile.Close(); ISheet sheet1 = hssfworkbook.GetSheet(sheetname); for (int j = 0; j < coluids.Length; j++) { for (int i = 0; i < updateData[j].Length; i++) { try { if (sheet1.GetRow(i + rowid) == null) { sheet1.CreateRow(i + rowid); } if (sheet1.GetRow(i + rowid).GetCell(coluids[j]) == null) { sheet1.GetRow(i + rowid).CreateCell(coluids[j]); } sheet1.GetRow(i + rowid).GetCell(coluids[j]).SetCellValue(updateData[j][i]); } catch (Exception ex) { //wl.WriteLogs(ex.ToString()); } } } try { FileStream writefile = new FileStream(outputFile, FileMode.Create); hssfworkbook.Write(writefile); writefile.Close(); } catch (Exception ex) { //wl.WriteLogs(ex.ToString()); } } #endregion public static int GetSheetNumber(string outputFile) { int number = 0; try { FileStream readfile = new FileStream(outputFile, FileMode.Open, FileAccess.Read); HSSFWorkbook hssfworkbook = new HSSFWorkbook(readfile); number = hssfworkbook.NumberOfSheets; } catch (Exception exception) { //wl.WriteLogs(exception.ToString()); } return number; } public static ArrayList GetSheetName(string outputFile) { ArrayList arrayList = new ArrayList(); try { FileStream readfile = new FileStream(outputFile, FileMode.Open, FileAccess.Read); HSSFWorkbook hssfworkbook = new HSSFWorkbook(readfile); for (int i = 0; i < hssfworkbook.NumberOfSheets; i++) { arrayList.Add(hssfworkbook.GetSheetName(i)); } } catch (Exception exception) { //wl.WriteLogs(exception.ToString()); } return arrayList; } public static bool isNumeric(String message, out double result) { Regex rex = new Regex(@"^[-]?d+[.]?d*$"); result = -1; if (rex.IsMatch(message)) { result = double.Parse(message); return true; } else return false; } #region 检测文件被占用 [DllImport("kernel32.dll")] public static extern IntPtr _lopen(string lpPathName, int iReadWrite); [DllImport("kernel32.dll")] public static extern bool CloseHandle(IntPtr hObject); public const int OF_READWRITE = 2; public const int OF_SHARE_DENY_NONE = 0x40; public static readonly IntPtr HFILE_ERROR = new IntPtr(-1); /// <summary> /// 检测文件被占用 /// </summary> /// <param name="FileNames">要检测的文件路径</param> /// <returns></returns> public static bool CheckFiles(string FileNames) { if (!File.Exists(FileNames)) { //文件不存在 return true; } IntPtr vHandle = _lopen(FileNames, OF_READWRITE | OF_SHARE_DENY_NONE); if (vHandle == HFILE_ERROR) { //文件被占用 return false; } //文件没被占用 CloseHandle(vHandle); return true; } #endregion } }