导出水晶报表时打开连接失败

Question

我正在尝试将我的水晶报告导出为 pdf，但不断收到“无法打开连接”错误。似乎错误发生在 CR.Export 行。我已经尝试了一切，但不知道如何解决它。仅供参考，它在我的开发服务器上运行，但是当我将它复制到生产服务器时，我得到了错误。所以很难确定它发生在哪里。

Private Sub Page_Init(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Init
    'CODEGEN: This method call is required by the Web Form Designer
    'Do not modify it using the code editor.
    Try

        InitializeComponent()
        strPermitNo = Session("RecordID")
        SpWithViewer(strPermitNo)
        CrystalReportViewer2.DataBind()

    Catch er As Exception
        LogError(er.ToString, "PageInit-PrintPermit1.aspx")
        Exit Try
    Finally

    End Try

End Sub

` Protected Sub btnExport_Click(sender As Object, e As EventArgs) 处理 btnExport.Click

    strPermitNo = Session("RecordID")

    Try

        Dim CrExportOptions As ExportOptions

        Dim CrDiskFileDestinationOptions As New DiskFileDestinationOptions()

        Dim CrFormatTypeOptions As New PdfRtfWordFormatOptions()

        CrDiskFileDestinationOptions.DiskFileName = "\\idsfmsrvr\wwwroot\FWPDFs\" & strPermitNo & ".pdf"

        strAttachment = "\\idsfmsrvr\wwwroot\FWPDFs\" & strPermitNo & ".pdf"

        Session("Attachment") = strAttachment

        CrExportOptions = CR.ExportOptions

        If True Then
            CrExportOptions.ExportDestinationType = ExportDestinationType.DiskFile
            CrExportOptions.ExportFormatType = ExportFormatType.PortableDocFormat
            CrExportOptions.DestinationOptions = CrDiskFileDestinationOptions

            CrExportOptions.FormatOptions = CrFormatTypeOptions

        End If
        CR.Export()
        EmailPermitToApplicant()
        File.Delete(strAttachment)
        lblMsg.Text = "Permit has been emailed to applicant."
        lblMsg.Visible = True

    Catch er As Exception
        LogError(er.ToString, "btnExport()-PrintPermit1.aspx")
        Exit Try
    Finally
        connFTS.Close()
    End Try`

Answer 1

只需一步：

1. 先打开一个报告，关注这个link
2. 随心所欲地导出。

注意：如果不想显示报表，可以隐藏表单。

祝你好运！