private static void ExportTable(System.Data.DataTable table, SpreadsheetDocument workbook) { var sheetPart = workbook.WorkbookPart.AddNewPart<WorksheetPart>(); var sheetData = new DocumentFormat.OpenXml.Spreadsheet.SheetData(); sheetPart.Worksheet = new DocumentFormat.OpenXml.Spreadsheet.Worksheet(sheetData); DocumentFormat.OpenXml.Spreadsheet.Sheets sheets = workbook.WorkbookPart.Workbook.GetFirstChild<DocumentFormat.OpenXml.Spreadsheet.Sheets>(); string relationshipId = workbook.WorkbookPart.GetIdOfPart(sheetPart); uint sheetId = 1; if (sheets.Elements<DocumentFormat.OpenXml.Spreadsheet.Sheet>().Count() > 0) { sheetId = sheets.Elements<DocumentFormat.OpenXml.Spreadsheet.Sheet>().Select(s => s.SheetId.Value).Max() + 1; } DocumentFormat.OpenXml.Spreadsheet.Sheet sheet = new DocumentFormat.OpenXml.Spreadsheet.Sheet() { Id = relationshipId, SheetId = sheetId, Name = table.TableName }; sheets.Append(sheet); DocumentFormat.OpenXml.Spreadsheet.Row headerRow = new DocumentFormat.OpenXml.Spreadsheet.Row(); List<String> columns = new List<string>(); foreach (System.Data.DataColumn column in table.Columns) { columns.Add(column.ColumnName); DocumentFormat.OpenXml.Spreadsheet.Cell cell = new DocumentFormat.OpenXml.Spreadsheet.Cell(); cell.DataType = DocumentFormat.OpenXml.Spreadsheet.CellValues.String; cell.CellValue = new DocumentFormat.OpenXml.Spreadsheet.CellValue(column.ColumnName); headerRow.AppendChild(cell); } sheetData.AppendChild(headerRow); foreach (System.Data.DataRow dsrow in table.Rows) { DocumentFormat.OpenXml.Spreadsheet.Row newRow = new DocumentFormat.OpenXml.Spreadsheet.Row(); foreach (String col in columns) { DocumentFormat.OpenXml.Spreadsheet.Cell cell = new DocumentFormat.OpenXml.Spreadsheet.Cell(); cell.DataType = DocumentFormat.OpenXml.Spreadsheet.CellValues.String; cell.CellValue = new DocumentFormat.OpenXml.Spreadsheet.CellValue(dsrow[col].ToString()); // newRow.AppendChild(cell); } sheetData.AppendChild(newRow); } }
protected override Task WriteFileAsync(HttpResponse response, CancellationToken cancellation) { var enumerable = _model as System.Collections.IEnumerable; if (enumerable == null) { throw new ArgumentException("IEnumerable type required"); } byte[] FileContents = null; using (MemoryStream mem = new MemoryStream()) { using (var workbook = SpreadsheetDocument.Create(mem, DocumentFormat.OpenXml.SpreadsheetDocumentType.Workbook)) { var workbookPart = workbook.AddWorkbookPart(); workbook.WorkbookPart.Workbook = new DocumentFormat.OpenXml.Spreadsheet.Workbook(); workbook.WorkbookPart.Workbook.Sheets = new DocumentFormat.OpenXml.Spreadsheet.Sheets(); var sheetPart = workbook.WorkbookPart.AddNewPart<WorksheetPart>(); var sheetData = new DocumentFormat.OpenXml.Spreadsheet.SheetData(); sheetPart.Worksheet = new DocumentFormat.OpenXml.Spreadsheet.Worksheet(sheetData); DocumentFormat.OpenXml.Spreadsheet.Sheets sheets = workbook.WorkbookPart.Workbook.GetFirstChild<DocumentFormat.OpenXml.Spreadsheet.Sheets>(); string relationshipId = workbook.WorkbookPart.GetIdOfPart(sheetPart); uint sheetId = 1; if (sheets.Elements<DocumentFormat.OpenXml.Spreadsheet.Sheet>().Count() > 0) { sheetId = sheets.Elements<DocumentFormat.OpenXml.Spreadsheet.Sheet>().Select(s => s.SheetId.Value).Max() + 1; } DocumentFormat.OpenXml.Spreadsheet.Sheet sheet = new DocumentFormat.OpenXml.Spreadsheet.Sheet() { Id = relationshipId, SheetId = sheetId, Name = "Sheet1" }; sheets.Append(sheet); DocumentFormat.OpenXml.Spreadsheet.Row headerRow = new DocumentFormat.OpenXml.Spreadsheet.Row(); List<String> columns = new List<string>(); var properties = typeof(User).GetProperties(); foreach (var property in properties) { columns.Add(property.Name); DocumentFormat.OpenXml.Spreadsheet.Cell cell = new DocumentFormat.OpenXml.Spreadsheet.Cell(); cell.DataType = DocumentFormat.OpenXml.Spreadsheet.CellValues.String; cell.CellValue = new DocumentFormat.OpenXml.Spreadsheet.CellValue(property.Name); headerRow.AppendChild(cell); } sheetData.AppendChild(headerRow); foreach (var item in enumerable) { DocumentFormat.OpenXml.Spreadsheet.Row newRow = new DocumentFormat.OpenXml.Spreadsheet.Row(); foreach (var header in properties) { DocumentFormat.OpenXml.Spreadsheet.Cell cell = new DocumentFormat.OpenXml.Spreadsheet.Cell(); cell.DataType = DocumentFormat.OpenXml.Spreadsheet.CellValues.String; var value = header.GetValue(item); cell.CellValue = new DocumentFormat.OpenXml.Spreadsheet.CellValue(value?.ToString()); // newRow.AppendChild(cell); } sheetData.AppendChild(newRow); } sheetPart.Worksheet.Save(); workbook.WorkbookPart.Workbook.Save(); workbook.Close(); FileContents = mem.ToArray(); return response.Body.WriteAsync(FileContents, 0, FileContents.Length, cancellation); } } }