Crystal Report Selection Formula Problem

[mehtaprashant19]

i have a problem with Crystal Report,

i am giving a SelectionFormula to the Crystal Report Viewer,

but it is giving me all the records

If Session("Rep") Is Nothing Then
Dim ConnInfo As New ConnectionInfo
With ConnInfo
.ServerName = ".sqlexpress"
.DatabaseName = "MTS_NEW"
.UserID = "marc"
.Password = "marc"
End With

Dim rep As New ReportDocument
rep.Load(Server.MapPath("CrystalReport1.Rpt"))
rep.DataDefinition.GroupSelectionFormula = "{MT_Rights.RightsGivenTo}=68"
Me.CrystalReportViewer1.ReportSource = rep
Dim RepTbls As Tables = rep.Database.Tables
For Each RepTbl As Table In RepTbls
Dim RepTblLogonInfo As TableLogOnInfo = RepTbl.LogOnInfo
RepTblLogonInfo.ConnectionInfo = ConnInfo
RepTbl.ApplyLogOnInfo(RepTblLogonInfo)
Next
Session("Rep") = rep
End If

Me.CrystalReportViewer1.ReportSource = Session("Rep")
Me.CrystalReportViewer1.DataBind()

so what should i do,
please do the needfull
thanks in advance

thanks & regards,
Prashant Mehta