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我正在编写一个 .net Web 服务来下载使用免费版 GemBox.Spreadsheet 创建的 excel 文件。调用服务，服务器运行但没有给出任何答案。这是代码。任何想法（或另一个图书馆）？谢谢

'''

<WebMethod(EnableSession:=True)>
Public Sub Download()
    SpreadsheetInfo.SetLicense("FREE-LIMITED-KEY")

    Dim workbook As New ExcelFile()
    Dim worksheet = workbook.Worksheets.Add("Hello World")

    worksheet.Cells(0, 0).Value = "English:"
    worksheet.Cells(0, 1).Value = "Hello"

    worksheet.Cells(1, 0).Value = "Russian:"
    worksheet.Cells(2, 0).Value = "Chinese:"

    Dim options As SaveOptions = SaveOptions.XlsDefault
    Dim filename As String = "TestFile.xls"

    Using stream As New MemoryStream
        workbook.Save(stream, options)

        worksheet.Clear()
        worksheet = Nothing
        workbook = Nothing

        With System.Web.HttpContext.Current.Response
            .ClearHeaders()
            .ClearContent()
            .Buffer = True
            .ContentType = "application/vnd.ms-excel"
            .AddHeader("content-disposition", "attachment; filename=" + filename)
            .AppendHeader("Content-Length", stream.Length)
            stream.CopyTo(.OutputStream)
            .End()
        End With
    End Using

End Sub

'''

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1 回答 1

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最好尝试这种方式，它对我有用：

'workbook.Save("DataSet to Excel file.xlsx")


Dim responseBase As HttpResponseBase = New HttpResponseWrapper(Me.Response)

' Stream spreadsheet to browser in XLSX format.
workbook.Save(responseBase, "Spreadsheet.xlsx")
于 2020-12-01T00:05:04.810 回答