为什么我的viewstate无法处理报告pdf

Question

我想在htm中向rpt pdf报告显示文本，但我的视图状态未在rpt中显示文本。您可以在下面看到我当前的方法。我会

 ViewState("KOMBO") = tipe
            Dim filename As String = ""
            If tipe = "D" Then
                filename = Server.MapPath("text\establisher.htm")
                namatipe = "ESTABLISHER"
            ElseIf tipe = "DI" Then
                If isDIequal Then
                    filename = Server.MapPath("text\influencer.htm")
                    namatipe = "INFLUENCER"
                Else
                    filename = Server.MapPath("text\concluder.htm")
                    namatipe = "CONCLUDER"
                End If


Dim crystalReport As New ReportDocument()
        Dim guid As Guid = System.Guid.NewGuid
        Dim nama As String
        crystalReport.Load(Server.MapPath("~/Hasil2.rpt"))
        crystalReport.SetParameterValue("nama", lblNama.Text)
        crystalReport.SetParameterValue("ttl", lblLahir.Text)
        crystalReport.SetParameterValue("tipe", lblTipe.Text)
        crystalReport.SetParameterValue("KOMBO", ViewState("KOMBO"))





 crystalReport.ExportToDisk(CrystalDecisions.Shared.ExportFormatType.PortableDocFormat, Request.PhysicalApplicationPath & "WebForm/temps2/" & "DISC" & guid.ToString & ".pdf")
        Response.Write("<script>window.open('temps2/" & "DISC" & guid.ToString & ".pdf')</script>")
        crystalReport.Close()
        crystalReport.Dispose()