下载OpenXML生成

我目前在控制台应用程序中创build一个Excel工作表来进行testing。 我需要在ASP.Net .aspx页面中实现我的代码。

我怎样才能将这张Excel表格提供给用户下载，而不用以任何forms保存在本地？

这是我的代码：

static void Main(string[] args) { SpreadsheetDocument spreadsheetDocument = SpreadsheetDocument.Create(DateTime.Now.ToString("ddMMyyyyHHmmss") + @".xlsx", SpreadsheetDocumentType.Workbook); WorkbookPart workbookpart = spreadsheetDocument.AddWorkbookPart(); workbookpart.Workbook = new Workbook(); // Add a WorksheetPart to the WorkbookPart. WorksheetPart worksheetPart = workbookpart.AddNewPart<WorksheetPart>(); worksheetPart.Worksheet = new Worksheet(new SheetData()); // Add Sheets to the Workbook. Sheets sheets = spreadsheetDocument.WorkbookPart.Workbook.AppendChild<Sheets>(new Sheets()); // Append a new worksheet and associate it with the workbook. Sheet sheet = new Sheet() { Id = spreadsheetDocument.WorkbookPart. GetIdOfPart(worksheetPart), SheetId = 1, Name = "mySheet" }; sheets.Append(sheet); Cell cell = InsertCellInWorksheet("A", 1, worksheetPart); cell.CellValue = new CellValue("23.289374"); cell.DataType = new EnumValue<CellValues>(CellValues.Number); Cell cellString = InsertCellInWorksheet("B", 1, worksheetPart); cellString.CellValue = new CellValue("hello"); cellString.DataType = new EnumValue<CellValues>(CellValues.String); // Close the document. workbookpart.Workbook.Save(); spreadsheetDocument.Close(); } // Given a column name, a row index, and a WorksheetPart, inserts a cell into the worksheet. // If the cell already exists, returns it. private static Cell InsertCellInWorksheet(string columnName, uint rowIndex, WorksheetPart worksheetPart) { Worksheet worksheet = worksheetPart.Worksheet; SheetData sheetData = worksheet.GetFirstChild<SheetData>(); string cellReference = columnName + rowIndex; // If the worksheet does not contain a row with the specified row index, insert one. Row row; if (sheetData.Elements<Row>().Where(r => r.RowIndex == rowIndex).Count() != 0) { row = sheetData.Elements<Row>().Where(r => r.RowIndex == rowIndex).First(); } else { row = new Row() { RowIndex = rowIndex }; sheetData.Append(row); } // If there is not a cell with the specified column name, insert one. if (row.Elements<Cell>().Where(c => c.CellReference.Value == columnName + rowIndex).Count() > 0) { return row.Elements<Cell>().Where(c => c.CellReference.Value == cellReference).First(); } else { // Cells must be in sequential order according to CellReference. Determine where to insert the new cell. Cell refCell = null; foreach (Cell cell in row.Elements<Cell>()) { if (string.Compare(cell.CellReference.Value, cellReference, true) > 0) { refCell = cell; break; } } Cell newCell = new Cell() { CellReference = cellReference }; row.InsertBefore(newCell, refCell); worksheet.Save(); return newCell; } } 

Answer 1

使用一个MemoryStream 。 例如

 public MemoryStream CreateSpreadSheet() { MemoryStream mem = new MemoryStream(); SpreadsheetDocument spreadsheetDocument = SpreadsheetDocument. Create(mem, SpreadsheetDocumentType.Workbook); WorkbookPart workbookpart = spreadsheetDocument.AddWorkbookPart(); workbookpart.Workbook = new Workbook(); // Code omitted for brevity.... // Close the document. workbookpart.Workbook.Save(); spreadsheetDocument.Close(); return mem; } 

然后你需要在你的aspx页面后面的代码中做这样的事情：

 using (MemoryStream mem = new CreateSpreadSheet(mem)) { Response.Clear(); Response.ContentType = @"application/vnd.openxmlformats-officedocument.spreadsheetml.sheet.main+xml"; Response.AddHeader("content-disposition", "attachment;filename=name_your_file.xlsx"); mem.WriteTo(Response.OutputStream); Response.End(); }