我正在使用NPOI将数据导出到excel。我正在强制将文件作为用户的附件下载。当用户将文件保存在磁盘上并打开文件时,它可以正常工作,但在尝试从下载对话框中选择打开选项时会失败。请参阅下面的代码。不确定有什么问题
var xssfworkbook = new XSSFWorkbook();
var sheet1 = xssfworkbook.CreateSheet("Sheet 1");
//make header row
var row1 = sheet1.CreateRow(0);
var cell0 = row1.CreateCell(0);
cell0.SetCellValue("Firm Id");
var cell1 = row1.CreateCell(1);
cell1.SetCellValue("Account Number");
for (int i = 0; i < result.Count; i++)
{
var row = sheet1.CreateRow(i + 1);
if (result[i].FeeAmount != null)
{
var cellFirmID = row.CreateCell(0);
cellFirmID.SetCellValue(result[i].FirmID);
}
if (result[i].AccountNumber != null)
{
var cellAccountNumber = row.CreateCell(1);
cellAccountNumber.SetCellValue(result[i].AccountNumber);
}
}
System.Web.HttpResponse response = System.Web.HttpContext.Current.Response;
response.ContentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
response.AddHeader("Content-Disposition", string.Format("attachment;filename={0}", "BESTINVEST_fee_rebate_loader_.xlsx"));
MemoryStream file = WriteToStream(xssfworkbook);
response.Clear();
response.BinaryWrite(file.ToArray());
response.End();
private MemoryStream WriteToStream(XSSFWorkbook xssfworkbook)
{
MemoryStream file = new MemoryStream();
xssfworkbook.Write(file);
return file;
}
答案 0 :(得分:0)
我建议您确保您的手机已解锁。
我没有问题地使用以下内容:
var workbook = new XSSFWorkbook();
var members = (obj as IEnumerable<MemberListViewModel>).ToDataSourceResult(request).Data;
var sheet = workbook.CreateSheet(TempData["List"].ToString());
var headerRow = sheet.CreateRow(0);
headerRow.CreateCell(0).SetCellValue("Name");
headerRow.CreateCell(1).SetCellValue("Degrees");
headerRow.CreateCell(2).SetCellValue("Rank");
headerRow.CreateCell(3).SetCellValue("Endowed Professorship");
headerRow.CreateCell(4).SetCellValue("Department");
headerRow.CreateCell(5).SetCellValue("Program");
var font = workbook.CreateFont();
font.Boldweight = (short)NPOI.SS.UserModel.FontBoldWeight.Bold;
XSSFCellStyle style = (XSSFCellStyle)workbook.CreateCellStyle();
style.SetFont(font);
style.FillPattern = NPOI.SS.UserModel.FillPattern.SolidForeground;
style.FillForegroundColor = IndexedColors.Grey25Percent.Index;
style.IsLocked = false;
style.WrapText = true;
for (int i = 0; i < 6; i++)
{
var colStyle = sheet.GetColumnStyle(i);
colStyle.WrapText = !colStyle.WrapText;
sheet.SetDefaultColumnStyle(i, colStyle);
var cell = headerRow.Cells[i];
cell.CellStyle = style;
}
headerRow.RowStyle = style;
sheet.SetColumnWidth(0, 30 * 256);
sheet.SetColumnWidth(1, 20 * 256);
sheet.SetColumnWidth(2, 20 * 256);
sheet.SetColumnWidth(3, 50 * 256);
sheet.SetColumnWidth(4, 30 * 256);
sheet.SetColumnWidth(5, 50 * 256);
int rowNumber = 1;
style = (XSSFCellStyle)workbook.CreateCellStyle();
style.IsLocked = false;
style.WrapText = true;
foreach (MemberListViewModel member in members)
{
var row = sheet.CreateRow(rowNumber++);
row.CreateCell(0).SetCellValue(member.FullName);
row.CreateCell(1).SetCellValue(member.degrees);
row.CreateCell(2).SetCellValue(member.rank);
row.CreateCell(3).SetCellValue(member.endowed_professorship);
row.CreateCell(4).SetCellValue(member.department);
row.CreateCell(5).SetCellValue(member.program);
}
//var colStyle = sheet.GetColumnStyle(3);
//colStyle.WrapText = !colStyle.WrapText;
//sheet.SetDefaultColumnStyle(3, colStyle);
workbook.Write(output);
var fileName = String.Format(
"{0} {2} - {1}.xlsx",
DateTime.Now.ToString("yyyyMMdd-HHmmss"),
Utilities.getUsername(Utilities.GetCurrentUser()), TempData["List"]).Replace(":", "");
var file = File(output.ToArray(), Utilities.ExcelFileContentType, fileName);
var context = System.Web.HttpContext.Current;
context.Response.Clear();
context.Response.ClearContent();
context.Response.ClearHeaders();
context.Response.AddHeader("content-disposition", String.Format("inline;filename=\'{0}\'", fileName));
context.Response.ContentEncoding = System.Text.Encoding.UTF8;
context.Response.ContentType = file.ContentType;
context.Response.AddHeader("content-length", file.FileContents.Length.ToString());
context.Response.BinaryWrite(buffer: file.FileContents.ToArray());
context.Response.Flush();
context.Response.End();
output.Dispose();
答案 1 :(得分:0)
这个问题来自“文化”。在创建Excel之前:
var culture=new CultureInfo("en-US");
Thread.CurrentThread.CurrentCulture=culture;
Thread.CurrentThread.CurrentUICulture=culture;