Crystal Report Selection Formula Problem

[mehtaprashant19]

i have a problem with Crystal Report,

i am giving a SelectionFormul a 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 = ".sqlexpres s"
.DatabaseName = "MTS_NEW"
.UserID = "marc"
.Password = "marc"
End With

Dim rep As New ReportDocument
rep.Load(Server .MapPath("Cryst alReport1.Rpt") )
rep.DataDefinit ion.GroupSelect ionFormula = "{MT_Rights.Rig htsGivenTo}=68"
Me.CrystalRepor tViewer1.Report Source = rep
Dim RepTbls As Tables = rep.Database.Ta bles
For Each RepTbl As Table In RepTbls
Dim RepTblLogonInfo As TableLogOnInfo = RepTbl.LogOnInf o
RepTblLogonInfo .ConnectionInfo = ConnInfo
RepTbl.ApplyLog OnInfo(RepTblLo gonInfo)
Next
Session("Rep") = rep
End If

Me.CrystalRepor tViewer1.Report Source = Session("Rep")
Me.CrystalRepor tViewer1.DataBi nd()

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

thanks & regards,
Prashant Mehta