如何将导出的Excel文件保存在客户端？

我已经使用Microsoft.Office.Interop.Excel dll导出数据到excel它工作正常，但它只在服务器位置下载不在客户端位置。 我们如何在客户端位置下载文件。 这里是我用于出口到Excel的代码以及我们如何可以要求位置保存Excel文件。

DataSet dsColors = objClsCorp.GetBlockColorsForReport(); if (dsReport.Tables.Count > 0 && dsColors.Tables.Count > 0) { Application ExcelApp = new Application(); Workbook ExcelWorkBook = null; Worksheet ExcelWorkSheet = null; ExcelApp.Visible = true; ExcelWorkBook = ExcelApp.Workbooks.Add(XlWBATemplate.xlWBATWorksheet); for (int i = 1; i < dsColors.Tables[0].Rows.Count; i++) { ExcelWorkBook.Worksheets.Add(); //Adding New sheet in Excel Workbook } for (int i = 0; i < dsColors.Tables[0].Rows.Count; i++) { int r = 1; // Initialize Excel Row Start Position = 1 ExcelWorkSheet = (Microsoft.Office.Interop.Excel.Worksheet)ExcelWorkBook.Worksheets[i + 1]; //Writing Columns Name in Excel Sheet for (int col = 1; col <= dsReport.Tables[0].Columns.Count; col++) { ExcelWorkSheet.Cells[r, col] = dsReport.Tables[0].Columns[col - 1].ColumnName; } r++; System.Data.DataTable table = dsReport.Tables[0]; if (table.Rows.Count > 0) { table.DefaultView.RowFilter = "Color = '" + dsColors.Tables[0].Rows[i]["BlockColor"].ToString()+"'"; table = table.DefaultView.ToTable(); //Writing Rows into Excel Sheet for (int row = 0; row < table.Rows.Count; row++) //r stands for ExcelRow and col for ExcelColumn { // Excel row and column start positions for writing Row=1 and Col=1 for (int col = 1; col <= table.Columns.Count; col++) { ExcelWorkSheet.Cells[r, col] = table.Rows[row][col - 1].ToString(); } r++; } } if (table.Rows.Count > 0) { int TotalStock = 0; decimal TotalBQTYSFT = 0; int TotalTodayMarked = 0; decimal TotalMQTYSFT = 0; int TotalMarked = 0; decimal TotalTMQTYSFT = 0; int TotalBalanceNos = 0; decimal TotalGrandQTYSFT = 0; TotalStock = Convert.ToInt32(table.Compute("SUM(Stock)", "Color = '" + dsColors.Tables[0].Rows[i]["BlockColor"].ToString() + "'")); TotalBQTYSFT = Convert.ToDecimal(table.Compute("SUM(BQTYSFT)", "Color = '" + dsColors.Tables[0].Rows[i]["BlockColor"].ToString() + "'")); TotalTodayMarked = Convert.ToInt32(table.Compute("SUM(TodayMarked)", "Color = '" + dsColors.Tables[0].Rows[i]["BlockColor"].ToString() + "'")); TotalMQTYSFT = Convert.ToDecimal(table.Compute("SUM(MQTYSFT)", "Color = '" + dsColors.Tables[0].Rows[i]["BlockColor"].ToString() + "'")); TotalMarked = Convert.ToInt32(table.Compute("SUM(TotalMarked)", "Color = '" + dsColors.Tables[0].Rows[i]["BlockColor"].ToString() + "'")); TotalTMQTYSFT = Convert.ToDecimal(table.Compute("SUM(TMQTYSFT)", "Color = '" + dsColors.Tables[0].Rows[i]["BlockColor"].ToString() + "'")); TotalBalanceNos = Convert.ToInt32(table.Compute("SUM(BalanceNos)", "Color = '" + dsColors.Tables[0].Rows[i]["BlockColor"].ToString() + "'")); TotalGrandQTYSFT = Convert.ToDecimal(table.Compute("SUM(GrandQTYSFT)", "Color = '" + dsColors.Tables[0].Rows[i]["BlockColor"].ToString() + "'")); for (int col = 1; col <= table.Columns.Count; col++) { ExcelWorkSheet.Cells[r, col] = ""; } r++; for (int col = 1; col <= table.Columns.Count; col++) { if (table.Columns[col - 1].ColumnName == "Stock") { ExcelWorkSheet.Cells[r, col] = TotalStock.ToString(); } if (table.Columns[col - 1].ColumnName == "BQTYSFT") { ExcelWorkSheet.Cells[r, col] = TotalBQTYSFT.ToString(); } if (table.Columns[col - 1].ColumnName == "TodayMarked") { ExcelWorkSheet.Cells[r, col] = TotalTodayMarked.ToString(); } if (table.Columns[col - 1].ColumnName == "MQTYSFT") { ExcelWorkSheet.Cells[r, col] = TotalMQTYSFT.ToString(); } if (table.Columns[col - 1].ColumnName == "TotalMarked") { ExcelWorkSheet.Cells[r, col] = TotalMarked.ToString(); } if (table.Columns[col - 1].ColumnName == "TMQTYSFT") { ExcelWorkSheet.Cells[r, col] = TotalTMQTYSFT.ToString(); } if (table.Columns[col - 1].ColumnName == "BalanceNos") { ExcelWorkSheet.Cells[r, col] = TotalBalanceNos.ToString(); } if (table.Columns[col - 1].ColumnName == "GrandQTYSFT") { ExcelWorkSheet.Cells[r, col] = TotalGrandQTYSFT.ToString(); } } r++; } try { ExcelWorkSheet.Name = dsColors.Tables[0].Rows[i]["Abbreviation"].ToString();//Renaming the ExcelSheets } catch (Exception ex) { ExcelWorkSheet.Name = dsColors.Tables[0].Rows[i]["Abbreviation"].ToString() + string.Format("{0:d}", Math.Abs(i - DateTime.Now.Millisecond)); } } string filePath = "C:\\NetStockReport\\"; if (!Directory.Exists(filePath)) { Directory.CreateDirectory(filePath); } string FileName = filePath+"NetStockReport" + DateTime.Now.ToString("dd-MM-yyyy-hh-mm-ss")+".xlsx"; ExcelWorkBook.SaveAs(FileName); ExcelWorkBook.Close(); ExcelApp.Quit(); Marshal.ReleaseComObject(ExcelWorkSheet); Marshal.ReleaseComObject(ExcelWorkBook); Marshal.ReleaseComObject(ExcelApp); } 

谢谢，普那。

Answer 1

 using (MemoryStream memoryStream = new MemoryStream()) { using (var writer = new StreamWriter(memoryStream)) { // your code to write the file content } string fileName = "yourfilename.csv"; HttpContext.Current.Response.Clear(); HttpContext.Current.Response.ContentType = "text/csv"; HttpContext.Current.Response.AddHeader("content-disposition", "attachment;filename=" + fileName); HttpContext.Current.Response.Cache.SetCacheability(HttpCacheability.NoCache); HttpContext.Current.Response.BinaryWrite(memoryStream.ToArray()); HttpContext.Current.Response.End(); } 

Answer 2

只需在代码底部添加以下代码：

 var excelFilePathMap = Server.MapPath(FileName); return new FilePathResult(excelFilePathMap, "application/octet-stream"); 

即你的代码的最后一行之后：Marshal.ReleaseComObject（ExcelApp）;

它会要求用户下载文件。