EPPlus – 如何使用模板
最近我发现了EPPlus（ http://epplus.codeplex.com/ ）。 我在我的项目中有一个excel .xlsx文件与所有风格的列标题。 我在他们的网站上阅读，你可以使用模板。
有谁知道如何或可以提供如何与EPPlus使用我的template.xlsx文件的代码示例？ 我希望能够简单地将我的数据加载到行中而不会混淆标题。
我最终解决的解决scheme是：
using System.IO; using System.Reflection; using OfficeOpenXml; //Create a stream of .xlsx file contained within my project using reflection Stream stream = Assembly.GetExecutingAssembly().GetManifestResourceStream("EPPlusTest.templates.VendorTemplate.xlsx"); //EPPlusTest = Namespace/Project //templates = folder //VendorTemplate.xlsx = file //ExcelPackage has a constructor that only requires a stream. ExcelPackage pck = new OfficeOpenXml.ExcelPackage(stream); 之后，您可以使用从模板加载的.xlsx文件中所需的所有ExcelPackage方法。
要创build一个新的包，你可以提供一个stream模板：
// templateName = the name of .xlsx file // result = stream to write the resulting xlsx to using (var source = System.IO.File.OpenRead(templateName)) using (var excel = new OfficeOpenXml.ExcelPackage(result, source)) { // Fill cells here // Leave headers etc as is excel.Save(); }
//这是我的EPPlus实施。 //可能会有帮助
class EPPlus { FileInfo newFile; FileInfo templateFile; DataSet _ds; ExcelPackage xlPackage; public string _ErrorMessage; public EPPlus(string filePath, string templateFilePath) { newFile = new FileInfo(@filePath); templateFile = new FileInfo(@templateFilePath); _ds = GetDataTables(); /* DataTables */ _ErrorMessage = string.Empty; CreateFileWithTemplate(); } private bool CreateFileWithTemplate() { try { _ErrorMessage = string.Empty; using (xlPackage = new ExcelPackage(newFile, templateFile)) { int i = 1; foreach (DataTable dt in _ds.Tables) { AddSheetWithTemplate(xlPackage, dt, i); i++; } ///* Set title, Author.. */ //xlPackage.Workbook.Properties.Title = "Title: Office Open XML Sample"; //xlPackage.Workbook.Properties.Author = "Author: Muhammad Mubashir."; ////xlPackage.Workbook.Properties.SetCustomPropertyValue("EmployeeID", "1147"); //xlPackage.Workbook.Properties.Comments = "Sample Record Details"; //xlPackage.Workbook.Properties.Company = "TRG Tech."; ///* Save */ xlPackage.Save(); } return true; } catch (Exception ex) { _ErrorMessage = ex.Message.ToString(); return false; } } /// <summary> /// This AddSheet method generates a .xlsx Sheet with your provided Template file, //DataTable and SheetIndex. /// </summary> public static void AddSheetWithTemplate(ExcelPackage xlApp, DataTable dt, int SheetIndex) { string _SheetName = string.Format("Sheet{0}", SheetIndex.ToString()); ExcelWorksheet worksheet; /* WorkSheet */ if (SheetIndex == 0) { worksheet = xlApp.Workbook.Worksheets[SheetIndex + 1]; // add a new worksheet to the empty workbook } else { worksheet = xlApp.Workbook.Worksheets[SheetIndex]; // add a new worksheet to the empty workbook } if (worksheet == null) { worksheet = xlApp.Workbook.Worksheets.Add(_SheetName); // add a new worksheet to the empty workbook } else { } /* Load the datatable into the sheet, starting from cell A1. Print the column names on row 1 */ worksheet.Cells["A1"].LoadFromDataTable(dt, true); } private static void AddSheet(ExcelPackage xlApp, DataTable dt, int Index, string sheetName) { string _SheetName = string.Empty; if (string.IsNullOrEmpty(sheetName) == true) { _SheetName = string.Format("Sheet{0}", Index.ToString()); } else { _SheetName = sheetName; } /* WorkSheet */ ExcelWorksheet worksheet = xlApp.Workbook.Worksheets[_SheetName]; // add a new worksheet to the empty workbook if (worksheet == null) { worksheet = xlApp.Workbook.Worksheets.Add(_SheetName); // add a new worksheet to the empty workbook } else { } /* Load the datatable into the sheet, starting from cell A1. Print the column names on row 1 */ worksheet.Cells["A1"].LoadFromDataTable(dt, true); int rowCount = dt.Rows.Count; int colCount = dt.Columns.Count; #region Set Column Type to Date using LINQ. /* IEnumerable<int> dateColumns = from DataColumn d in dt.Columns where d.DataType == typeof(DateTime) || d.ColumnName.Contains("Date") select d.Ordinal + 1; foreach (int dc in dateColumns) { xlSheet.Cells[2, dc, rowCount + 1, dc].Style.Numberformat.Format = "dd/MM/yyyy"; } */ #endregion #region Set Column Type to Date using LOOP. /* Set Column Type to Date. */ for (int i = 0; i < dt.Columns.Count; i++) { if ((dt.Columns[i].DataType).FullName == "System.DateTime" && (dt.Columns[i].DataType).Name == "DateTime") { //worksheet.Cells[2,4] .Style.Numberformat.Format = "yyyy-mm-dd h:mm"; //OR "yyyy-mm-dd h:mm" if you want to include the time! worksheet.Column(i + 1).Style.Numberformat.Format = "dd/MM/yyyy h:mm"; //OR "yyyy-mm-dd h:mm" if you want to include the time! worksheet.Column(i + 1).Width = 25; } } #endregion //(from DataColumn d in dt.Columns select d.Ordinal + 1).ToList().ForEach(dc => //{ // //background color // worksheet.Cells[1, 1, 1, dc].Style.Fill.PatternType = ExcelFillStyle.Solid; // worksheet.Cells[1, 1, 1, dc].Style.Fill.BackgroundColor.SetColor(System.Drawing.Color.LightYellow); // //border // worksheet.Cells[1, dc, rowCount + 1, dc].Style.Border.Top.Style = ExcelBorderStyle.Thin; // worksheet.Cells[1, dc, rowCount + 1, dc].Style.Border.Right.Style = ExcelBorderStyle.Thin; // worksheet.Cells[1, dc, rowCount + 1, dc].Style.Border.Bottom.Style = ExcelBorderStyle.Thin; // worksheet.Cells[1, dc, rowCount + 1, dc].Style.Border.Left.Style = ExcelBorderStyle.Thin; // worksheet.Cells[1, dc, rowCount + 1, dc].Style.Border.Top.Color.SetColor(System.Drawing.Color.LightGray); // worksheet.Cells[1, dc, rowCount + 1, dc].Style.Border.Right.Color.SetColor(System.Drawing.Color.LightGray); // worksheet.Cells[1, dc, rowCount + 1, dc].Style.Border.Bottom.Color.SetColor(System.Drawing.Color.LightGray); // worksheet.Cells[1, dc, rowCount + 1, dc].Style.Border.Left.Color.SetColor(System.Drawing.Color.LightGray); //}); /* Format the header: Prepare the range for the column headers */ string cellRange = "A1:" + Convert.ToChar('A' + colCount - 1) + 1; using (ExcelRange rng = worksheet.Cells[cellRange]) { rng.Style.Font.Bold = true; rng.Style.Fill.PatternType = ExcelFillStyle.Solid; //Set Pattern for the background to Solid rng.Style.Fill.BackgroundColor.SetColor(Color.FromArgb(79, 129, 189)); //Set color to dark blue rng.Style.Font.Color.SetColor(Color.White); } /* Header Footer */ worksheet.HeaderFooter.OddHeader.CenteredText = "Header: Tinned Goods Sales"; worksheet.HeaderFooter.OddFooter.RightAlignedText = string.Format("Footer: Page {0} of {1}", ExcelHeaderFooter.PageNumber, ExcelHeaderFooter.NumberOfPages); // add the page number to the footer plus the total number of pages } }// class End.
我使用Vb.net，这是我做的：
VB
Imports OfficeOpenXml Dim existingFile As New FileInfo("C:\OldFileLocation\File.xlsx") Dim fNewFile As New FileInfo("C:\NewFileLocation\File.xlsx") Using MyExcel As New ExcelPackage(existingFile) Dim MyWorksheet As ExcelWorksheet = MyExcel.Workbook.Worksheets("ExistingSheetName") MyWorksheet.Cells("A1").Value = "Hello" 'Add additional info here MyExcel.SaveAs(fNewFile) End Using
Posible C＃（我没有testing）
FileInfo existingFile = new FileInfo("C:\\OldFileLocation\\File.xlsx"); FileInfo fNewFile = new FileInfo("C:\\NewFileLocation\\File.xlsx"); using (ExcelPackage MyExcel = new ExcelPackage(existingFile)) { ExcelWorksheet MyWorksheet = MyExcel.Workbook.Worksheets["ExistingSheetName"]; MyWorksheet.Cells["A1"].Value = "Hello"; //Add additional info here MyExcel.SaveAs(fNewFile); }
Response.Clear(); Response.ContentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"; Response.AddHeader("content-disposition", "attachment;filename=" + HttpUtility.UrlEncode("Logs.xlsx", System.Text.Encoding.UTF8)); using (ExcelPackage pck = new ExcelPackage()) { ExcelWorksheet ws = pck.Workbook.Worksheets.Add("Logs"); ws.Cells["A1"].LoadFromDataTable(dt, true); var ms = new System.IO.MemoryStream(); pck.SaveAs(ms); ms.WriteTo(Response.OutputStream); }