how to use selection formula in cr report. with code sample.

[samuel chandradoss]

how to use selection formula in cr report. with code sample.

CrystalReport11.RecordSelectionFormula = "{PATIENT_MASTER.patient_id}=4"
CrystalReportViewer1.ReportSource = Nothing

CrystalReportViewer1.ReportSource = CrystalReport11

CrystalReportViewer1.Show()

i have used this code but it will not reflect in result. it shows old record displayed for selection formula of design time..

help me pls