下载生成的Excel文件

Question

Following code given:

Microsoft.Office.Interop.Excel.Application excelFile = new Microsoft.Office.Interop.Excel.Application();
excelFile.Visible = false;
Workbook wb = excelFile.Workbooks.Add(XlWBATemplate.xlWBATWorksheet);
Worksheet sheet1 = wb.ActiveSheet as Worksheet;
sheet1.Name = "Test";
sheet1.Cells[1, 1] = "Test";

string fileName = Environment.GetFolderPath(System.Environment.SpecialFolder.DesktopDirectory) + "\\tickets.xlsx";
wb.SaveAs(Filename: fileName, FileFormat: XlFileFormat.xlOpenXMLWorkbook, AccessMode: XlSaveAsAccessMode.xlNoChange);
wb.Close();
excelFile.UserControl = true;
excelFile.Quit();

This generates an excelfile and saves it to the desktop. What do I have to change to ask for a save location?

Answer 1

Using excel on the server is not supported and opens a whole can of worms, especially the is a high risk that excel pops up a dialog, which cannot be dismissed because no one sees the server desktop. Also, excel is very slow, generating a critical bottleneck. Last, debugging this is nearly impossible - this solution works, but will never work well.

The solution: use a library like epplus which can read / write xlsx files easily, is faster to develop, magnitudes faster in building the file and free. There are other libraries out there which can read xls files, if needed.

Answer 2

在设置文件名之前，您可以打开SaveFileDialog