C#利用NPOI處理excel的類 NPOIHelper.cs
阿新 • • 發佈：2018-12-09
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.UserModel; using NPOI.HSSF.Util; using NPOI.POIFS; using NPOI.SS.Formula.Eval; 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 NPOI.XSSF; using NPOI.XSSF.UserModel; public class NPOIHelper { // private static WriteLog wl = new WriteLog(); #region 從datatable中將資料匯出到excel /// <summary> /// DataTable匯出到Excel的MemoryStream /// </summary> /// <param name="dtSource">源DataTable</param> /// <param name="strHeaderText">表頭文字</param> static MemoryStream ExportDT(DataTable dtSource, string strHeaderText) { HSSFWorkbook workbook = new HSSFWorkbook(); HSSFSheet sheet = workbook.CreateSheet() as HSSFSheet; #region 右擊檔案 屬性資訊 #endregion HSSFCellStyle dateStyle = workbook.CreateCellStyle() as HSSFCellStyle; HSSFDataFormat format = workbook.CreateDataFormat() as HSSFDataFormat; dateStyle.DataFormat = format.GetFormat("yyyy-mm-dd"); //取得列寬 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，填充表頭，填充列頭，樣式 if (rowIndex == 65535 || rowIndex == 0) { if (rowIndex != 0) { sheet = workbook.CreateSheet() as HSSFSheet; } #region 表頭及樣式 { 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 CellRangeAddress(0, 0, 0, dtSource.Columns.Count - 1)); //headerRow.Dispose(); } #endregion #region 列頭及樣式 { 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; //設定列寬 sheet.SetColumnWidth(column.Ordinal, (arrColWidth[column.Ordinal] + 1) * 256); } //headerRow.Dispose(); } #endregion rowIndex = 2; } #endregion #region 填充內容 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": //字串型別 //double result; //if (isNumeric(drValue, out result)) //{ // double.TryParse(drValue, out result); // newCell.SetCellValue(result); // break; //} //else //{ // newCell.SetCellValue(drValue); // break; //} //字串直出 newCell.SetCellValue(drValue); break; case "System.DateTime": //日期型別 DateTime dateV; DateTime.TryParse(drValue, out dateV); if (dateV.Year == 1) { newCell.SetCellValue(""); } else { newCell.SetCellValue(dateV); } newCell.CellStyle = dateStyle; //格式化顯示 break; case "System.Boolean": //布林型 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": //浮點型 case "System.Double": double doubV = 0; double.TryParse(drValue, out doubV); newCell.SetCellValue(doubV); break; case "System.DBNull": //空值處理 newCell.SetCellValue(""); break; default: newCell.SetCellValue(""); break; } } #endregion rowIndex++; } using (MemoryStream ms = new MemoryStream()) { workbook.Write(ms); ms.Flush(); ms.Position = 0; //sheet.Dispose(); //workbook.Dispose(); return ms; } } /// <summary> /// DataTable匯出到Excel的MemoryStream /// </summary> /// <param name="dtSource">源DataTable</param> /// <param name="strHeaderText">表頭文字</param> static void ExportDTI(DataTable dtSource, string strHeaderText, FileStream fs) { XSSFWorkbook workbook = new XSSFWorkbook(); XSSFSheet sheet = workbook.CreateSheet() as XSSFSheet; #region 右擊檔案 屬性資訊 { //DocumentSummaryInformation dsi = PropertySetFactory.CreateDocumentSummaryInformation(); //dsi.Company = "Wilson"; //Workbook.DocumentSummaryInformation = dsi; //SummaryInformation si = PropertySetFactory.CreateSummaryInformation(); //si.Author = "Wilson ERP"; //填加xls檔案作者資訊 //si.ApplicationName = "Wilson ERP"; //填加xls檔案建立程式資訊 //si.LastAuthor = "Wilson ERP"; //填加xls檔案最後儲存者資訊 //si.Comments = "人事文件"; //填加xls檔案作者資訊 //si.Title = "人事資料匯出"; //填加xls檔案標題資訊 //si.Subject = "人事資料匯出"; //填加檔案主題資訊 //si.CreateDateTime = DateTime.Now; //Workbook.SummaryInformation = si; } #endregion XSSFCellStyle dateStyle = workbook.CreateCellStyle() as XSSFCellStyle; XSSFDataFormat format = workbook.CreateDataFormat() as XSSFDataFormat; dateStyle.DataFormat = format.GetFormat("yyyy-mm-dd"); //取得列寬 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，填充表頭，填充列頭，樣式 if (rowIndex == 0) { #region 表頭及樣式 //{ // XSSFRow headerRow = sheet.CreateRow(0) as XSSFRow; // headerRow.HeightInPoints = 25; // headerRow.CreateCell(0).SetCellValue(strHeaderText); // XSSFCellStyle headStyle = workbook.CreateCellStyle() as XSSFCellStyle; // headStyle.Alignment = NPOI.SS.UserModel.HorizontalAlignment.CENTER; // XSSFFont font = workbook.CreateFont() as XSSFFont; // 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 列頭及樣式 { XSSFRow headerRow = sheet.CreateRow(0) as XSSFRow; XSSFCellStyle headStyle = workbook.CreateCellStyle() as XSSFCellStyle; headStyle.Alignment = NPOI.SS.UserModel.HorizontalAlignment.Center; XSSFFont font = workbook.CreateFont() as XSSFFont; 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; //設定列寬 sheet.SetColumnWidth(column.Ordinal, (arrColWidth[column.Ordinal] + 1) * 256); } //headerRow.Dispose(); } #endregion rowIndex = 1; } #endregion #region 填充內容 XSSFRow dataRow = sheet.CreateRow(rowIndex) as XSSFRow; foreach (DataColumn column in dtSource.Columns) { XSSFCell newCell = dataRow.CreateCell(column.Ordinal) as XSSFCell; string drValue = row[column].ToString(); switch (column.DataType.ToString()) { case "System.String": //字串型別 double result; if (isNumeric(drValue, out result)) { double.TryParse(drValue, out result); newCell.SetCellValue(result); break; } else { newCell.SetCellValue(drValue); break; } case "System.DateTime": //日期型別 DateTime dateV; DateTime.TryParse(drValue, out dateV); newCell.SetCellValue(dateV); newCell.CellStyle = dateStyle; //格式化顯示 break; case "System.Boolean": //布林型 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": //浮點型 case "System.Double": double doubV = 0; double.TryParse(drValue, out doubV); newCell.SetCellValue(doubV); break; case "System.DBNull": //空值處理 newCell.SetCellValue(""); break; default: newCell.SetCellValue(""); break; } } #endregion rowIndex++; } workbook.Write(fs); fs.Close(); } /// <summary> /// DataTable匯出到Excel檔案 /// </summary> /// <param name="dtSource">源DataTable</param> /// <param name="strHeaderText">表頭文字</param> /// <param name="strFileName">儲存位置</param> public static void ExportDTtoExcel(DataTable dtSource, string strHeaderText, string strFileName) { string[] temp = strFileName.Split('.'); if (temp[temp.Length - 1] == "xls" && dtSource.Columns.Count < 256 && dtSource.Rows.Count < 65536) { 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(); } } } else { if (temp[temp.Length - 1] == "xls") strFileName = strFileName + "x"; using (FileStream fs = new FileStream(strFileName,FileMode.Create, FileAccess.Write)) { ExportDTI(dtSource, strHeaderText, fs); } } } #endregion #region 從excel中將資料匯出到datatable /// <summary> /// 讀取excel 預設第一行為標頭 /// </summary> /// <param name="strFileName">excel文件路徑</param> /// <returns></returns> public static DataTable ImportExceltoDt(string strFileName) { DataTable dt = new DataTable(); IWorkbook wb; using (FileStream file = new FileStream(strFileName, FileMode.Open, FileAccess.Read)) { wb = WorkbookFactory.Create(file); } ISheet sheet = wb.GetSheetAt(0); dt = ImportDt(sheet, 0, true); return dt; } /// <summary> /// 讀取Excel流到DataTable /// </summary> /// <param name="stream">Excel流</param> /// <returns>第一個sheet中的資料</returns> public static DataTable ImportExceltoDt(Stream stream) { try { DataTable dt = new DataTable(); IWorkbook wb; using (stream) { wb = WorkbookFactory.Create(stream); } ISheet sheet = wb.GetSheetAt(0); dt = ImportDt(sheet, 0, true); return dt; } catch (Exception) { throw; } } /// <summary> /// 讀取Excel流到DataTable /// </summary> /// <param name="stream">Excel流</param> /// <param name="sheetName">表單名</param> /// <param name="HeaderRowIndex">列頭所在行號，-1表示沒有列頭</param> /// <returns>指定sheet中的資料</returns> public static DataTable ImportExceltoDt(Stream stream, string sheetName, int HeaderRowIndex) { try { DataTable dt = new DataTable(); IWorkbook wb; using (stream) { wb = WorkbookFactory.Create(stream); } ISheet sheet = wb.GetSheet(sheetName); dt = ImportDt(sheet, HeaderRowIndex, true); return dt; } catch (Exception) { throw; } } /// <summary> /// 讀取Excel流到DataSet /// </summary> /// <param name="stream">Excel流</param> /// <returns>Excel中的資料</returns> public static DataSet ImportExceltoDs(Stream stream) { try { DataSet ds = new DataSet(); IWorkbook wb; using (stream) { wb = WorkbookFactory.Create(stream); } for (int i = 0; i < wb.NumberOfSheets; i++) { DataTable dt = new DataTable(); ISheet sheet = wb.GetSheetAt(i); dt = ImportDt(sheet, 0, true); ds.Tables.Add(dt); } return ds; } catch (Exception) { throw; } } /// <summary> /// 讀取Excel流到DataSet /// </summary> /// <param name="stream">Excel流</param> /// <param name="dict">字典引數，key：sheet名，value：列頭所在行號，-1表示沒有列頭</param> /// <returns>Excel中的資料</returns> public static DataSet ImportExceltoDs(Stream stream, Dictionary<string, int> dict) { try { DataSet ds = new DataSet(); IWorkbook wb; using (stream) { wb = WorkbookFactory.Create(stream); } foreach (string key in dict.Keys) { DataTable dt = new DataTable(); ISheet sheet = wb.GetSheet(key); dt = ImportDt(sheet, dict[key], true); ds.Tables.Add(dt); } return ds; } catch (Exception) { throw; } } /// <summary> /// 讀取excel /// </summary> /// <param name="strFileName">excel檔案路徑</param> /// <param name="sheet">需要匯出的sheet</param> /// <param name="HeaderRowIndex">列頭所在行號，-1表示沒有列頭</param> /// <returns></returns> public static DataTable ImportExceltoDt(string strFileName, string SheetName, int HeaderRowIndex) { HSSFWorkbook workbook; IWorkbook wb; using (FileStream file = new FileStream(strFileName, FileMode.Open, FileAccess.Read)) { wb = new HSSFWorkbook(file); } ISheet sheet = wb.GetSheet(SheetName); DataTable table = new DataTable(); table = ImportDt(sheet, HeaderRowIndex, true); //ExcelFileStream.Close(); workbook = null; sheet = null; return table; } /// <summary> /// 讀取excel /// </summary> /// <param name="strFileName">excel檔案路徑</param> /// <param name="sheet">需要匯出的sheet序號</param> /// <param name="HeaderRowIndex">列頭所在行號，-1表示沒有列頭</param> /// <returns></returns> public static DataTable ImportExceltoDt(string strFileName, int SheetIndex, int HeaderRowIndex) { HSSFWorkbook workbook; IWorkbook wb; using (FileStream file = new FileStream(strFileName, FileMode.Open, FileAccess.Read)) { wb = WorkbookFactory.Create(file); } ISheet isheet = wb.GetSheetAt(SheetIndex); DataTable table = new DataTable(); table = ImportDt(isheet, HeaderRowIndex, true); //ExcelFileStream.Close(); workbook = null; isheet = null; return table; } /// <summary> /// 讀取excel /// </summary> /// <param name="strFileName">excel檔案路徑</param> /// <param name="sheet">需要匯出的sheet序號</param> /// <param name="HeaderRowIndex">列頭所在行號，-1表示沒有列頭</param> /// <returns></returns> public static DataTable ImportExceltoDt(string strFileName, int SheetIndex, string EndColIndex) { if (EndColIndex == "") EndColIndex = "0"; HSSFWorkbook workbook; IWorkbook wb; using (FileStream file = new FileStream(strFileName, FileMode.Open, FileAccess.Read)) { wb = WorkbookFactory.Create(file); } ISheet isheet = wb.GetSheetAt(SheetIndex); DataTable table = new DataTable(); table = ImportDt(isheet, int.Parse(EndColIndex)); //ExcelFileStream.Close(); workbook = null; isheet = null; return table; } /// <summary> /// 讀取excel /// </summary> /// <param name="strFileName">excel檔案路徑</param> /// <param name="sheet">需要匯出的sheet</param> /// <param name="HeaderRowIndex">列頭所在行號，-1表示沒有列頭</param> /// <returns></returns> public static DataTable ImportExceltoDt(string strFileName, string SheetName, int HeaderRowIndex, bool needHeader) { HSSFWorkbook workbook; IWorkbook wb; using (FileStream file = new FileStream(strFileName, FileMode.Open, FileAccess.Read)) { wb = WorkbookFactory.Create(file); } ISheet sheet = wb.GetSheet(SheetName); DataTable table = new DataTable(); table = ImportDt(sheet, HeaderRowIndex, needHeader); //ExcelFileStream.Close(); workbook = null; sheet = null; return table; } /// <summary> /// 讀取excel /// </summary> /// <param name="strFileName">excel檔案路徑</param> /// <param name="sheet">需要匯出的sheet序號</param> /// <param name="HeaderRowIndex">列頭所在行號，-1表示沒有列頭</param> /// <returns></returns> public static DataTable ImportExceltoDt(string strFileName, int SheetIndex, int HeaderRowIndex, bool needHeader) { HSSFWorkbook workbook; IWorkbook wb; using (FileStream file = new FileStream(strFileName, FileMode.Open, FileAccess.Read)) { wb = WorkbookFactory.Create(file); } ISheet sheet = wb.GetSheetAt(SheetIndex); DataTable table = new DataTable(); table = ImportDt(sheet, HeaderRowIndex, needHeader); //ExcelFileStream.Close(); workbook = null; sheet = null; return table; } /// <summary> /// 將指定列區間 sheet中的資料匯入到datatable中 /// </summary> /// <param name="sheet">需要匯入的sheet</param> /// <param name="HeaderRowIndex">列頭所在行號，-1表示沒有列頭</param> /// <returns></returns> static DataTable ImportDt(ISheet sheet, int EndColIndex) { DataTable table = new DataTable(); IRow headerRow; int cellCount; try { for (int i = 0; i <= EndColIndex; i++) { DataColumn column = new DataColumn(Convert.ToString(i)); table.Columns.Add(column); } int rowCount = sheet.LastRowNum; for (int i = 0; i <= sheet.LastRowNum; i++) { try { IRow row; if (sheet.GetRow(i) == null) { row = sheet.CreateRow(i); } else { row = sheet.GetRow(i); } DataRow dataRow = table.NewRow(); for (int j = 0; j <= EndColIndex; 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) { } } table.Rows.Add(dataRow); } catch (Exception exception) { } } } catch (Exception exception) { } return table; } /// <summary> /// 將制定sheet中的資料匯出到datatable中 /// </summary> /// <param name="sheet">需要匯出的sheet</param> /// <param name="HeaderRowIndex">列頭所在行號，-1表示沒有列頭</param> /// <returns></returns> static DataTable ImportDt(ISheet sheet, int HeaderRowIndex, bool needHeader) { DataTable table = new DataTable(); IRow headerRow; int cellCount; try { if (HeaderRowIndex < 0 || !needHeader) { headerRow = sheet.GetRow(0); 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); 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("重複列名" + 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("重複列名" + 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 { IRow row; if (sheet.GetRow(i) == null) { row = sheet.CreateRow(i); } else { row = sheet.GetRow(i); } 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) { } } table.Rows.Add(dataRow); } catch (Exception exception) { } } } catch (Exception exception) { } return table; } #endregion public static void InsertSheet(string outputFile, string sheetname, DataTable dt) { FileStream readfile = new FileStream(outputFile, FileMode.Open, FileAccess.Read); IWorkbook hssfworkbook = WorkbookFactory.Create(readfile); //HSSFWorkbook hssfworkbook = new HSSFWorkbook(readfile); int num = hssfworkbook.GetSheetIndex(sheetname); ISheet sheet1; if (num >= 0) sheet1 = hssfworkbook.GetSheet(sheetname); else { sheet1 = hssfworkbook.CreateSheet(sheetname); } try { if (sheet1.GetRow(0) == null) { sheet1.CreateRow(0); } for (int coluid = 0; coluid < dt.Columns.Count; coluid++) { if (sheet1.GetRow(0).GetCell(coluid) == null) { sheet1.GetRow(0).CreateCell(coluid); } sheet1.GetRow(0).GetCell(coluid).SetCellValue(dt.Columns[coluid].ColumnName); } } catch { throw; } for (int i = 1; i <= dt.Rows.Count; i++) { try { if (sheet1.GetRow(i) == null) { sheet1.CreateRow(i); } for (int coluid = 0; coluid < dt.Columns.Count; coluid++) { if (sheet1.GetRow(i).GetCell(coluid) == null) { sheet1.GetRow(i).CreateCell(coluid); } sheet1.GetRow(i).GetCell(coluid).SetCellValue(dt.Rows[i - 1][coluid].ToString()); } } catch { //throw; } } try { readfile.Close(); FileStream writefile = new FileStream(outputFile, FileMode.OpenOrCreate, FileAccess.Write); hssfworkbook.Write(writefile); writefile.Close(); } catch { } } #region 更新excel中的資料 /// <summary> /// 更新Excel表格 /// </summary> /// <param name="outputFile">需更新的excel表格路徑</param> /// <param name="sheetname">sheet名</param> /// <param name="updateData">需更新的資料</param> /// <param name="coluid">需更新的列號</param> /// <param name="rowid">需更新的開始行號</param> public static void UpdateExcel(string outputFile, string sheetname, string[] updateData, int coluid, int rowid) { //FileStream readfile = new FileStream(outputFile, FileMode.Open, FileAccess.Read); IWorkbook hssfworkbook = null;// WorkbookFactory.Create(outputFile); //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 { throw; } } try { //readfile.Close(); FileStream writefile = new FileStream(outputFile, FileMode.OpenOrCreate, FileAccess.Write); hssfworkbook.Write(writefile); writefile.Close(); } catch { } } /// <summary> /// 更新Excel表格 /// </summary> /// <param name="outputFile">需更新的excel表格路徑</param> /// <param name="sheetname">sheet名</param> /// <param name="updateData">需更新的資料</param> /// <param name="coluids">需更新的列號</param> /// <param name="rowid">需更新的開始行號</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 { } } } try { FileStream writefile = new FileStream(outputFile, FileMode.Create); hssfworkbook.Write(writefile); writefile.Close(); } catch { } } /// <summary> /// 更新Excel表格 /// </summary> /// <param name="outputFile">需更新的excel表格路徑</param> /// <param name="sheetname">sheet名</param> /// <param name="updateData">需更新的資料</param> /// <param name="coluid">需更新的列號</param> /// <param name="rowid">需更新的開始行號</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 { throw; } } try { readfile.Close(); FileStream writefile = new FileStream(outputFile, FileMode.Create, FileAccess.Write); hssfworkbook.Write(writefile); writefile.Close(); } catch { } } /// <summary> /// 更新Excel表格 /// </summary> /// <param name="outputFile">需更新的excel表格路徑</param> /// <param name="sheetname">sheet名</param> /// <param name="updateData">需更新的資料</param> /// <param name="coluids">需更新的列號</param> /// <param name="rowid">需更新的開始行號</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 { } } } try { FileStream writefile = new FileStream(outputFile, FileMode.Create); hssfworkbook.Write(writefile); writefile.Close(); } catch { } } #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) { } 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) { } 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; } /// <summary> /// DataTable匯出到Excel的MemoryStream 第二步 /// </summary> /// <param name="dtSource">源DataTable</param> /// <param name="strHeaderText">表頭文字</param> public static MemoryStream Export(DataTable dtSource, string strHeaderText) { HSSFWorkbook workbook = new HSSFWorkbook(); HSSFSheet sheet = workbook.CreateSheet() as HSSFSheet; #region 右擊檔案 屬性資訊 { DocumentSummaryInformation dsi = PropertySetFactory.CreateDocumentSummaryInformation(); dsi.Company = "NPOI"; workbook.DocumentSummaryInformation = dsi; SummaryInformation si = PropertySetFactory.CreateSummaryInformation(); si.Author = "檔案作者資訊"; //填加xls檔案作者資訊 si.ApplicationName = "建立程式資訊"; //填加xls檔案建立程式資訊 si.LastAuthor = "最後儲存者資訊"; //填加xls檔案最後儲存者資訊 si.Comments = "作者資訊"; //填加xls檔案作者資訊 si.Title = "標題資訊"; //填加xls檔案標題資訊 si.Subject = "主題資訊";//填加檔案主題資訊 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"); //取得列寬 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，填充表頭，填充列頭，樣式 if (rowIndex == 65535 || rowIndex == 0) { if (rowIndex != 0) { sheet = workbook.CreateSheet() as HSSFSheet; } #region 表頭及樣式 { if (string.IsNullOrEmpty(strHeaderText)) { HSSFRow headerRow = sheet.CreateRow(0) as HSSFRow; headerRow.HeightInPoints = 25; headerRow.CreateCell(0).SetCellValue(strHeaderText); HSSFCellStyle headStyle = workbook.CreateCellStyle() as HSSFCellStyle; //headStyle.Alignment = CellHorizontalAlignment.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 列頭及樣式 { HSSFRow headerRow = sheet.CreateRow(0) as HSSFRow; HSSFCellStyle headStyle = workbook.CreateCellStyle() as HSSFCellStyle; //headStyle.Alignment = CellHorizontalAlignment.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; //設定列寬 sheet.SetColumnWidth(column.Ordinal, (arrColWidth[column.Ordinal] + 1) * 256); } //headerRow.Dispose(); } #endregion rowIndex = 1; } #endregion #region 填充內容 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"://字串型別 newCell.SetCellValue(drValue); break; case "System.DateTime"://日期型別 DateTime dateV; DateTime.TryParse(drValue, out dateV); newCell.SetCellValue(dateV); newCell.CellStyle = dateStyle;//格式化顯示 break; case "System.Boolean"://布林型 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"://浮點型 case "System.Double": double doubV = 0; double.TryParse(drValue, out doubV); newCell.SetCellValue(doubV); break; case "System.DBNull"://空值處理 newCell.SetCellValue(""); break; default: newCell.SetCellValue(""); break; } } #endregion rowIndex++; } using (MemoryStream ms = new MemoryStream()) { workbook.Write(ms); ms.Flush(); ms.Position = 0; //sheet.Dispose(); //workbook.Dispose();//一般只用寫這一個就OK了，他會遍歷並釋放所有資源，但當前版本有問題所以只釋放sheet return ms; } } /// <summary> /// 由DataSet匯出Excel /// </summary> /// <param name="sourceTable">要匯出資料的DataTable</param> /// <param name="sheetName">工作表名稱</param> /// <returns>Excel工作表</returns> private static MemoryStream ExportDataSetToExcel(DataSet sourceDs, string sheetName) { HSSFWorkbook workbook = new HSSFWorkbook(); MemoryStream ms = new MemoryStream(); string[] sheetNames = sheetName.Split(','); for (int i = 0; i < sheetNames.Length; i++) { ISheet sheet = workbook.CreateSheet(sheetNames[i]); #region 列頭 IRow headerRow = sheet.CreateRow(0); HSSFCellStyle headStyle = workbook.CreateCellStyle() as HSSFCellStyle; HSSFFont font = workbook.CreateFont() as HSSFFont; font.FontHeightInPoints = 10; font.Boldweight = 700; headStyle.SetFont(font); //取得列寬 int[] arrColWidth = new int[sourceDs.Tables[i].Columns.Count]; foreach (DataColumn item in sourceDs.Tables[i].Columns) { arrColWidth[item.Ordinal] = Encoding.GetEncoding(936).GetBytes(item.ColumnName.ToString()).Length; } // 處理列頭 foreach (DataColumn column in sourceDs.Tables[i].Columns) { headerRow.CreateCell(column.Ordinal).SetCellValue(column.ColumnName); headerRow.GetCell(column.Ordinal).CellStyle = headStyle; //設定列寬 sheet.SetColumnWidth(column.Ordinal, (arrColWidth[column.Ordinal] + 1) * 256); } #endregion #region 填充值 int rowIndex = 1; foreach (DataRow row in sourceDs.Tables[i].Rows) { IRow dataRow = sheet.CreateRow(rowIndex); foreach (DataColumn column in sourceDs.Tables[i].Columns) { dataRow.CreateCell(column.Ordinal).SetCellValue(row[column].ToString()); } rowIndex++; } #endregion } workbook.Write(ms); ms.Flush(); ms.Position = 0; workbook = null; return ms; } /// <summary> /// 驗證匯入的Excel是否有資料 /// </summary> /// <param name="excelFileStream"></param> /// <returns></returns> public static bool HasData(Stream excelFileStream) { using (excelFileStream) { IWorkbook workBook = new HSSFWorkbook(excelFileStream); if (workBook.NumberOfSheets > 0) { ISheet sheet = workBook.GetSheetAt(0); return sheet.PhysicalNumberOfRows > 0; } } return false; } //引數說明 //第一個:指定操作的Sheet。 //第二個:指定在第幾行指入（插入行的位置） //第三個:指定要插入多少行 //第四個:源單元格格式的行， IRow mySourceStyleRow = mySheet.GetRow(InsertRowIndex - 1);//獲取源格式行 private void InsertRow(ISheet sheet, int InsertRowIndex, int InsertRowCount, IRow SourceStyleRow) { #region 批量移動行 sheet.ShiftRows( InsertRowIndex, //--開始行 sheet.LastRowNum, //--結束行 InsertRowCount, //--移動大小(行數)--往下移動 true, //是否複製行高 false//, //是否重置行高 //true //是否移動批註 ); #endregion #region 對批量移動後空出的空行插，建立相應的行，並以插入行的上一行為格式源(即：插入行-1的那一行) for (int i = InsertRowIndex; i < InsertRowIndex + InsertRowCount - 1; i++) { IRow targetRow = null; ICell sourceCell = null; ICell targetCell = null; targetRow = sheet.CreateRow(i + 1); for (int m = SourceStyleRow.FirstCellNum; m < SourceStyleRow.LastCellNum; m++) { sourceCell = SourceStyleRow.GetCell(m); if (sourceCell == null) continue; targetCell = targetRow.CreateCell(m); //targetCell..Encoding = sourceCell.Encoding; targetCell.CellStyle = sourceCell.CellStyle; targetCell.SetCellType(sourceCell.CellType); } //CopyRow(sourceRow, targetRow); //Util.CopyRow(sheet, sourceRow, targetRow); } IRow firstTargetRow = sheet.GetRow(InsertRowIndex); ICell firstSourceCell = null; ICell firstTargetCell = null; for (int m = SourceStyleRow.FirstCellNum; m < SourceStyleRow.LastCellNum; m++) { firstSourceCell = SourceStyleRow.GetCell(m); if (firstSourceCell == null) continue; firstTargetCell = firstTargetRow.CreateCell(m); //firstTargetCell.Encoding = firstSourceCell.Encoding; firstTargetCell.CellStyle = firstSourceCell.CellStyle; firstTargetCell.SetCellType(firstSourceCell.CellType); } #endregion } //資料庫對單元格按資料型別輸出 public static void outDBtoEXCELcell(ISheet mySheet, int RowIndex, int CowIndex, DataTable mydt, int vrow, string vcol) { string drValue = mydt.Rows[vrow][vcol].ToString(); switch (mydt.Columns[vcol].DataType.ToString()) { case "System.String"://字串型別 mySheet.GetRow(RowIndex).GetCell(CowIndex).SetCellValue(drValue); break; case "System.DateTime"://日期型別 DateTime dateV; DateTime.TryParse(drValue, out dateV); mySheet.GetRow(RowIndex).GetCell(CowIndex).SetCellValue(dateV); break; case "System.Boolean"://布林型 bool boolV = false; bool.TryParse(drValue, out boolV); mySheet.GetRow(RowIndex).GetCell(CowIndex).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); mySheet.GetRow(RowIndex).GetCell(CowIndex).SetCellValue(intV); break; case "System.Decimal"://浮點型 case "System.Double": double doubV = 0; double.TryParse(drValue, out doubV); mySheet.GetRow(RowIndex).GetCell(CowIndex).SetCellValue(doubV); break; case "System.DBNull"://空值處理 mySheet.GetRow(RowIndex).GetCell(CowIndex).SetCellValue(""); break; default: mySheet.GetRow(RowIndex).GetCell(CowIndex).SetCellValue(""); break; } } public static void outDBtoEXCELcell(HSSFSheet mySheet, int RowIndex, int CowIndex, DataTable mydt, int vrow, int vcol) { string drValue = mydt.Rows[vrow][vcol].ToString(); switch (mydt.Columns[vcol].DataType.ToString()) { case "System.String"://字串型別 mySheet.GetRow(RowIndex).GetCell(CowIndex).SetCellValue(drValue); break; case "System.DateTime"://日期型別 DateTime dateV; DateTime.TryParse(drValue, out dateV); mySheet.GetRow(RowIndex).GetCell(CowIndex).SetCellValue(dateV); break; case "System.Boolean"://布林型 bool boolV = false; bool.TryParse(drValue, out boolV); mySheet.GetRow(RowIndex).GetCell(CowIndex).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); mySheet.GetRow(RowIndex).GetCell(CowIndex).SetCellValue(intV); break; case "System.Decimal"://浮點型 case "System.Double": double doubV = 0; double.TryParse(drValue, out doubV); mySheet.GetRow(RowIndex).GetCell(CowIndex).SetCellValue(doubV); break; case "System.DBNull"://空值處理 mySheet.GetRow(RowIndex).GetCell(CowIndex).SetCellValue(""); break; default: mySheet.GetRow(RowIndex).GetCell(CowIndex).SetCellValue(""); break; } } }