导入NuGet里的DocumentFormat.OpenXml
添加数据
public static async System.Threading.Tasks.Task<string> ExportDataToExcelAsync(HistoricalDataListViewModel viewModel, string fileName) { string path = ""; if (viewModel == null) return ""; // Granted storage permission var storageStatus = await CrossPermissions.Current.CheckPermissionStatusAsync(Permission.Storage); if (storageStatus != PermissionStatus.Granted) { var results = await CrossPermissions.Current.RequestPermissionsAsync(new[] { Permission.Storage }); storageStatus = results[Permission.Storage]; } if (viewModel.Datas.Count > 0) { try { path = DependencyService.Get<IExportFilesToLocation>().GetFolderLocation() + fileName + ".xlsx"; using (SpreadsheetDocument document = SpreadsheetDocument.Create(path, SpreadsheetDocumentType.Workbook)) { WorkbookPart workbookPart = document.AddWorkbookPart(); workbookPart.Workbook = new Workbook(); WorksheetPart worksheetPart = workbookPart.AddNewPart<WorksheetPart>(); worksheetPart.Worksheet = new Worksheet(); Sheets sheets = workbookPart.Workbook.AppendChild(new Sheets()); Sheet sheet = new Sheet() { Id = workbookPart.GetIdOfPart(worksheetPart), SheetId = 1, Name = "数据列表" }; sheets.Append(sheet); #region 样式 WorkbookStylesPart stylepart = workbookPart.AddNewPart<WorkbookStylesPart>(); stylepart.Stylesheet = new Stylesheet(); SetStyle(stylepart); #endregion workbookPart.Workbook.Save(); Columns columns = new Columns(); columns.AppendChild(new Column() { Min = 1, Max = (UInt32)viewModel.Datas.First().ModelList.Count(x => x.IsVisibility), CustomWidth = true, Width = (DoubleValue)20 }); worksheetPart.Worksheet.Append(columns); SheetData sheetData = worksheetPart.Worksheet.AppendChild(new SheetData()); // Constructing header Row row = new Row(); row.Append(viewModel.Datas.First().ModelList.Where(x=>x.IsVisibility).OrderBy(x=>x.OrderId).Select(x => new DocumentFormat.OpenXml.Spreadsheet.Cell() { CellValue = new CellValue(x.ChineseName+(String.IsNullOrEmpty(x.Unit)?"":String.Format("({0})",x.Unit))), DataType = new EnumValue<CellValues>(CellValues.String), StyleIndex = 3 })); // Insert the header row to the Sheet Data sheetData.AppendChild(row); // Add each product foreach (var d in viewModel.Datas) { row = new Row(); row.Append(d.ModelList.Where(x => x.IsVisibility).OrderBy(x => x.OrderId).Select(x => new DocumentFormat.OpenXml.Spreadsheet.Cell() { CellValue = new CellValue(x.Display), DataType = new EnumValue<CellValues>((x.DataType == 0 && x.Name != "nDate") ? CellValues.Number : CellValues.String), StyleIndex = 3 })); sheetData.AppendChild(row); } worksheetPart.Worksheet.Save(); } } catch (Exception ex) { Xamarin.Forms.MessagingCenter.Send<SystemLog>(new SystemLog() { Type = "错误信息", Log = ex.ToString(), Time = DateTime.Now }, "SystemLog"); path = ""; } } return path; }
设置样式（字体大小 居中等）
private static void SetStyle(WorkbookStylesPart stylesPart) { //添加SheetStyle：Font\Border\Fill\字体居中 Fonts fonts = new Fonts() { Count = (UInt32Value)2U, KnownFonts = true }; //fontId = 0 DocumentFormat.OpenXml.Spreadsheet.Font font = new DocumentFormat.OpenXml.Spreadsheet.Font(); DocumentFormat.OpenXml.Spreadsheet.FontSize fontSize = new DocumentFormat.OpenXml.Spreadsheet.FontSize() { Val = 12D }; FontFamilyNumbering fontFamilyNumbering = new FontFamilyNumbering() { Val = 1 }; FontScheme fontScheme = new FontScheme() { Val = FontSchemeValues.Minor }; font.Append(fontSize); font.Append(fontFamilyNumbering); font.Append(fontScheme); fonts.Append(font); //fontId = 1 font = new DocumentFormat.OpenXml.Spreadsheet.Font(); Bold bold = new Bold(); fontSize = new DocumentFormat.OpenXml.Spreadsheet.FontSize() { Val = 26D }; fontFamilyNumbering = new FontFamilyNumbering() { Val = 1 }; fontScheme = new FontScheme() { Val = FontSchemeValues.Minor }; font.Append(bold); font.Append(fontSize); font.Append(fontFamilyNumbering); font.Append(fontScheme); fonts.Append(font); stylesPart.Stylesheet.Append(fonts); Fills fills = new Fills() { Count = (UInt32Value)3U }; //FillId = 0 Fill fill = new Fill(); PatternFill patternFill = new PatternFill() { PatternType = PatternValues.None }; fill.Append(patternFill); fills.Append(fill); //FillId = 1 fill = new Fill(); patternFill = new PatternFill() { PatternType = PatternValues.Gray125 }; fill.Append(patternFill); fills.Append(fill); //FillId = 2 fill = new Fill(); patternFill = new PatternFill() { PatternType = PatternValues.Solid }; ForegroundColor foregroundColor = new ForegroundColor() { Rgb = "FF87ceeb" }; BackgroundColor backgroundColor = new BackgroundColor() { Indexed = (UInt32Value)64U }; patternFill.Append(foregroundColor); patternFill.Append(backgroundColor); fill.Append(patternFill); fills.Append(fill); stylesPart.Stylesheet.Append(fills); Borders borders = new Borders() { Count = (UInt32Value)2U }; //BorderId = 0 Border border = new Border(); LeftBorder leftBorder = new LeftBorder(); RightBorder rightBorder = new RightBorder(); TopBorder topBorder = new TopBorder(); BottomBorder bottomBorder = new BottomBorder(); DiagonalBorder diagonalBorder = new DiagonalBorder(); border.Append(leftBorder); border.Append(rightBorder); border.Append(topBorder); border.Append(bottomBorder); border.Append(diagonalBorder); borders.Append(border); //BorderId = 1 border = new Border(); leftBorder = new LeftBorder() { Style = BorderStyleValues.Thin }; rightBorder = new RightBorder() { Style = BorderStyleValues.Thin }; topBorder = new TopBorder() { Style = BorderStyleValues.Thin }; bottomBorder = new BottomBorder() { Style = BorderStyleValues.Thin }; DocumentFormat.OpenXml.Spreadsheet.Color color = new DocumentFormat.OpenXml.Spreadsheet.Color() { Indexed = (UInt32Value)64U }; leftBorder.Append(color); color = new DocumentFormat.OpenXml.Spreadsheet.Color() { Indexed = (UInt32Value)64U }; rightBorder.Append(color); color = new DocumentFormat.OpenXml.Spreadsheet.Color() { Indexed = (UInt32Value)64U }; topBorder.Append(color); color = new DocumentFormat.OpenXml.Spreadsheet.Color() { Indexed = (UInt32Value)64U }; bottomBorder.Append(color); diagonalBorder = new DiagonalBorder(); border.Append(leftBorder); border.Append(rightBorder); border.Append(topBorder); border.Append(bottomBorder); border.Append(diagonalBorder); borders.Append(border); stylesPart.Stylesheet.Append(borders); //StyleIndex = 0; CellFormats cellFormats = new CellFormats() { Count = (UInt32Value)5U }; CellFormat cellFormat = new CellFormat() { NumberFormatId = (UInt32Value)0U, FontId = (UInt32Value)0U, FillId = (UInt32Value)0U, BorderId = (UInt32Value)0U, FormatId = (UInt32Value)0U }; Alignment alignment = new Alignment() { Vertical = VerticalAlignmentValues.Center }; cellFormat.Append(alignment); cellFormats.Append(cellFormat); //StyleIndex = 1; cellFormat = new CellFormat() { NumberFormatId = (UInt32Value)0U, FontId = (UInt32Value)0U, FillId = (UInt32Value)2U, BorderId = (UInt32Value)0U, FormatId = (UInt32Value)0U, ApplyFont = true, ApplyFill = true, ApplyBorder = true, ApplyAlignment = true }; alignment = new Alignment() { Vertical = VerticalAlignmentValues.Center }; cellFormat.Append(alignment); cellFormats.Append(cellFormat); //StyleIndex = 2; cellFormat = new CellFormat() { NumberFormatId = (UInt32Value)0U, FontId = (UInt32Value)1U, FillId = (UInt32Value)2U, BorderId = (UInt32Value)0U, FormatId = (UInt32Value)0U, ApplyFont = true, ApplyFill = true, ApplyBorder = true, ApplyAlignment = true }; alignment = new Alignment() { Horizontal = HorizontalAlignmentValues.Center, Vertical = VerticalAlignmentValues.Center }; cellFormat.Append(alignment); cellFormats.Append(cellFormat); //StyleIndex = 3; cellFormat = new CellFormat() { NumberFormatId = (UInt32Value)0U, FontId = (UInt32Value)0U, FillId = (UInt32Value)0, BorderId = (UInt32Value)1U, FormatId = (UInt32Value)0U, ApplyFont = true, ApplyFill = true, ApplyBorder = true, ApplyAlignment = true }; alignment = new Alignment() { Horizontal = HorizontalAlignmentValues.Center, Vertical = VerticalAlignmentValues.Center }; cellFormat.Append(alignment); cellFormats.Append(cellFormat); //StyleIndex = 4; cellFormat = new CellFormat() { NumberFormatId = (UInt32Value)0U, FontId = (UInt32Value)0U, FillId = (UInt32Value)0, BorderId = (UInt32Value)0U, FormatId = (UInt32Value)0U, ApplyFont = true, ApplyFill = true, ApplyBorder = true, ApplyAlignment = true }; cellFormats.Append(cellFormat); stylesPart.Stylesheet.Append(cellFormats); stylesPart.Stylesheet.Save(); }