Compiler Error Message: BC30311: Value of type 'Integer' cannot be converted to 'Date

I wrote a report in crystal reports, version 11 and wrote a .aspx page as a user interface for users to input data for their report selection. When I click on the link to take me to my .aspx page, I get the Compiler Error Message: BC30311: Value of type 'Integer' cannot be converted to 'Date'. This report is currently working in our live version, but not test. The report and the code behind remain unmodified as far as I know. Can someone please look at the the code I have attached? The lines in bold are where the error is occurring. Any comments/suggestions would be appreciated. Thank you in advance!

Code:

Code:

Public Sub GenerateReport()

    Dim dsProposalRecs As DataSet
    Dim dsRptRecs As New DataSet

    Dim drProposalRec As DataRow

    Dim strSQL As String
    Dim strErr As String
    Dim strHTMLErr As String
    Dim strStatusSelection As String
    Dim strDateSelection As String

    Dim intDateSelection As Integer

    Const strMethodName As String = "GenerateReport"

    Try
      If (Me.rdoEffectiveDate.Checked) Then
        intDateSelection = 1
        strDateSelection = "Effective Date"
      ElseIf (Me.rdoProposalDate.Checked) Then
        intDateSelection = 2
        strDateSelection = "Proposal Date"
      ElseIf (Me.rdoStatusDate.Checked) Then
        intDateSelection = 3
        strDateSelection = "Status Date"
      Else
        intDateSelection = 0
        strDateSelection = ""
      End If

      strStatusSelection = Me.ddlStatus.SelectedValue

      If (BlankField(strStatusSelection)) Then
        strStatusSelection = "NONE"
      End If

                If ((BlankField(Request.Form("txtFrom"))) And (BlankField(Request.Form("txtTo")))) Then
                    dsProposalRecs = ReportsDB.GetActivityReportData(0, _
                                                                   0, _
                                                                [B]   0, _[/B]
                                                                   Convert.ToDateTime(Date.Now), _
                                                                   intDateSelection, _
                                                                   strStatusSelection, _
                                                                   Application("cpConnection"), _
                                                                   Application, Session, Response)
                Else
                    dsProposalRecs = ReportsDB.GetActivityReportData(0, _
                                                                   0, _
                                                                  [B] 0, _[/B]
                                                                   Convert.ToDateTime(Request.Form("txtFrom")), _
                                                                   intDateSelection, _
                                                                   strStatusSelection, _
                                                                   Application("cpConnection"), _
                                                                   Application, Session, Response)
                End If

      strSQL = "Exec spDeleteProposalActivityReportTableByID "
      strSQL += ReturnFieldArgument("@UserID", Session("LoginID"), False)

      RunStoredProcedure(strSQL, Application("rptConnection"), Application, Session, Response)

      For Each drProposalRec In dsProposalRecs.Tables("ActivityRecs").Rows

        strSQL = "Exec spInsertProposalActivityReportTable "
        strSQL += ReturnFieldArgument("@CaseName", drProposalRec.Item("CASENAME"), True)
        strSQL += ReturnFieldArgument("@HeadState", drProposalRec.Item("HEADQUARTERSTATE"), True)
        strSQL += ReturnFieldArgument("@NAICS", drProposalRec.Item("NAICSCODE"), True)
        strSQL += ReturnFieldArgument("@NAICSDesc", drProposalRec.Item("NAICSDESCRIPTION"), True)
        strSQL += ReturnFieldArgument("@ProdDesc", drProposalRec.Item("PRODUCTDESCRIPTION"), True)
        strSQL += ReturnFieldArgument("@LFID", drProposalRec.Item("LAKEFORESTPROPOSALID"), True)
        strSQL += ReturnFieldArgument("@Status", drProposalRec.Item("STATUS"), True)
        strSQL += ReturnFieldArgument("@TotalLives", drProposalRec.Item("TOTALNUMBEROFLIVES"), True)
        strSQL += ReturnFieldArgument("@DateQuoted", drProposalRec.Item("DATEQUOTED"), True)
        strSQL += ReturnFieldArgument("@StatusDate", drProposalRec.Item("STATUSDATE"), True)
        strSQL += ReturnFieldArgument("@EffectiveDate", drProposalRec.Item("EFFECTIVEDATE"), True)
        strSQL += ReturnFieldArgument("@SalesDirName", drProposalRec.Item("SALESDIRECTORNAME"), True)
                    'strSQL += ReturnFieldArgument("@SalesVPName", drProposalRec.Item("SALESVPNAME"), True)
        strSQL += ReturnFieldArgument("@ProducerName", drProposalRec.Item("producerfullname"), True)
        If (Not (IsDBNull(drProposalRec.Item("target")))) Then
          If (drProposalRec.Item("target") = "N") Then
            strSQL += ReturnFieldArgument("@TargetProducer", 0, True)
          Else
            strSQL += ReturnFieldArgument("@TargetProducer", 1, True)
          End If
        End If
        strSQL += ReturnFieldArgument("@ProducerPhone", drProposalRec.Item("phone"), True)

                    'If (Me.rdoVicePresident.Checked) Then
                    'strSQL += ReturnFieldArgument("@PageBreak1", drProposalRec.Item("SALESVPNAME"), True)
                    'strSQL += ReturnFieldArgument("@PageBreak2", drProposalRec.Item("SALESDIRECTORNAME"), True)
                    'strSQL += ReturnFieldArgument("@PageBreak3", drProposalRec.Item("producerfullname"), True)
                    'strSQL += ReturnFieldArgument("@PageBreak4", drProposalRec.Item("CASENAME"), True)
                    'strSQL += ReturnFieldArgument("@PageBreak1Label", "Regional Vice President:", True)
                    'strSQL += ReturnFieldArgument("@PageBreak2Label", "Regional Sales Director:", True)
                    'strSQL += ReturnFieldArgument("@PageBreak3Label", "Producer:", True)
                    'strSQL += ReturnFieldArgument("@PageBreak4Label", "Case Name:", True)
                    If (Me.rdoProducer.Checked) Then
                        strSQL += ReturnFieldArgument("@PageBreak1", drProposalRec.Item("producerfullname"), True)
                        strSQL += ReturnFieldArgument("@PageBreak4", drProposalRec.Item("CASENAME"), True)
                        strSQL += ReturnFieldArgument("@PageBreak1Label", "Producer:", True)
                        strSQL += ReturnFieldArgument("@PageBreak4Label", "Case Name:", True)
                    ElseIf (Me.rdoCase.Checked) Then
                        strSQL += ReturnFieldArgument("@PageBreak1", drProposalRec.Item("CASENAME"), True)
                        strSQL += ReturnFieldArgument("@PageBreak2", drProposalRec.Item("SALESDIRECTORNAME"), True)
                        strSQL += ReturnFieldArgument("@PageBreak3", drProposalRec.Item("producerfullname"), True)
                        strSQL += ReturnFieldArgument("@PageBreak1Label", "Case Name:", True)
                        strSQL += ReturnFieldArgument("@PageBreak2Label", "Regional Sales Director:", True)
                        strSQL += ReturnFieldArgument("@PageBreak3Label", "Producer:", True)
                    End If

                    If (Not (BlankField(strDateSelection))) Then
                        strSQL += ReturnFieldArgument("@Criteria1", "From " & Request.Form("txtFrom") & " thru " & Request.Form("txtTo"), True)
                        strSQL += ReturnFieldArgument("@Criteria2", "Based on: " & strDateSelection, True)
                    End If
                    If (strStatusSelection <> "NONE") Then
                        strSQL += ReturnFieldArgument("@Criteria3", "Status Selected: " & strStatusSelection, True)
                    End If
                    strSQL += ReturnFieldArgument("@Criteria4", "By All", True)
                    strSQL += ReturnFieldArgument("@UserID", Session("LoginID"), False)

                    RunStoredProcedure(strSQL, Application("rptConnection"), Application, Session, Response)

                Next

    Catch ex As Exception
      If (ex.Message = "Collection is read-only.") Then
      Else
          strErr = Now() & sSpace & ex.Message & sSpace & _
           "Has Occurred in " & Replace(Err.Source, "|", vbCrLf) & vbCrLf & "In " & Convert.ToString(Application("AppVirtualDir")) & ":" & _
           strMethodName & vbCrLf & ex.StackTrace

          SendError(strErr, Application, Session, Response)

          strHTMLErr = strErr.Replace(vbCrLf, "<br>")

          If (Not (System.Diagnostics.EventLog.SourceExists(Convert.ToString(Application("AppVirtualDir")), "."))) Then
            System.Diagnostics.EventLog.CreateEventSource(Convert.ToString(Application("AppVirtualDir")), "Application")
          End If

          Dim appLog As New System.Diagnostics.EventLog("Application", ".", Convert.ToString(Application("AppVirtualDir")))

          appLog.WriteEntry(strErr, System.Diagnostics.EventLogEntryType.Error)

          Response.Write(strHTMLErr)
          Response.End()
      End If
    End Try

    Session("ReportName") = "ProposalActivityReport.rpt"
    Session("ExportName") = "ActivityRpt"
    Session("ReportTitle") = "Activity Report"
    Session("PrevPage") = "Blank.aspx"
    Session("NextPage") = "CRReports-Dynamic.aspx"

    Session("spCall") = "spSelectProposalActivityReportTableByID "

    bytLoadOpt = 1

  End Sub

 

What is the line number of your error. Going thru the whole code without knowing the line of error is difficult to find out the issue.