导出多个Crystal报表ASP.NET

Question

单击导出按钮时，我想导出2个不同的报告。 问题是该例程仅触发一次，而我只能打印一份报告。 难道我做错了什么？ 我认为这与HTTPResponse有关，但我不确定。

这是我的代码：

Dim badgeSize As Integer = 0 'Drop Down selection

    Dim badgeData As New DataSet 'Visitor Badge Data
    Dim badgeEmployeeData As New DataSet 'Employee Badge Data
    Dim badgeTotals As Integer = 0 'Totals for both

    badgeSize = ddlBadgeSize.SelectedValue

    ' Get Visitor Data
    badgeData = _DatabaseAccess.GetProjectReportData(sessionInfo.myEventID, sessionInfo.EventCreator)
    ' Get Employee Data
    badgeEmployeeData = _DatabaseAccess.GetProjectReportEmployeeData(sessionInfo.myEventID, sessionInfo.EventCreator)
    'Obtain Totals
    badgeTotals = badgeData.Tables(0).Rows.Count + badgeEmployeeData.Tables(0).Rows.Count

    If badgeTotals = 0 Then
        ShowMessage("There are no badges to print.")
        Exit Sub
    End If

    If badgeSize.Equals(0) Then 'Small 

        If badgeEmployeeData.Tables(0).Rows.Count > 0 Then
            If badgeEmployeeData.Tables(0).Rows.Count >= 6 Then
                PrintProjectBadges(badgeEmployeeData, "Employee", badgeSize)
            Else
                PrintStandardDymo(badgeEmployeeData, "Employee", 1)
            End If
        End If

        If badgeData.Tables(0).Rows.Count > 0 Then
            If badgeData.Tables(0).Rows.Count >= 6 Then
                PrintProjectBadges(badgeData, "Visitor", badgeSize)
            Else
                PrintStandardDymo(badgeData, "Visitor", 1)
            End If
        End If
   else
     'do somethign else
   endif

以及报告代码：

Private Sub PrintProjectBadges(ByVal theData As DataSet, ByVal badgeType As String, ByVal badgeSize As Integer)
        Dim ourReport As New ReportDocument
        Dim crConnectionInfo As New ConnectionInfo(SetCrystalConnection)

        If badgeSize = 0 Then
            Try
                If badgeType = "Visitor" Then
                    ourReport.Load(Server.MapPath("SmallProjectBadge.rpt"), OpenReportMethod.OpenReportByDefault) 'LIVE SERVER USE
                Else
                    ourReport.Load(Server.MapPath("SmallProjectEmployeeBadge.rpt"), OpenReportMethod.OpenReportByDefault) 'LIVE SERVER USE
                End If

            Catch ex As Exception
                Dim TraceList As New ArrayList
                TraceList.Add("DBLog")
                DatabaseAccess.WriteToErrorLog("Visitor Registration", "Printing Project Badges", ex.Message, TraceEventType.Information, 1, TraceList)
                Exit Sub
            End Try

            ourReport.SetDataSource(theData.Tables("Project"))
        Else
            'Do somethign else...
        End If

        Response.Buffer = True
        'Clear the response content and headers
        Response.ClearContent()
        Response.ClearHeaders()

        SetLogon(ourReport, crConnectionInfo)

        'Export the Report to Response stream in PDF format and file name Customers
        ourReport.ExportToHttpResponse(ExportFormatType.PortableDocFormat, Response, True, "Visitor_Badges")
        Response.End()
        'Response.Close()


    End Sub

任何帮助将非常感激。

Answer 1

响应一次只能发送一个文件-要导出两个文件，您需要将它们导出到本地磁盘，并将它们组合成ZIP文件之类的内容，然后再将其发送回客户端。