i am working on crystal report.net.(vb.net and sql server)
i have created a date parameter of type date (Option- discrete value),
when i use it on the report the value chosen by the user at runtime is displayed on the report, but the same doed not happen when i use option - range value for the date parameter.
 i want the range value chosen at runtime by the user to be displayed in the report.
please can anyone help me in this.
 thanks in advance
 ravi

The best way I have found to do this is rather than using a range is to have 2 parameter fields i.e. a start date and a finish date. You then insert both fields in your report as per usual.

   Regards,
   narooma :)

thank you narooma, by the way i found a solution , i worked it out using formulas.

You can programmatically pass parameter values into your Crystal Report using VB.NET code similar to this:
    Imports CrystalDecisions.CrystalReports.Engine
    Imports CrystalDecisions.Shared
    '
    ' Load the selected report file.
    '
    Dim CR As New ReportDocument
    CR.Load(strReportPath)
    '
    ' Declare the parameter related objects.
    '
    Dim crParameterDiscreteValue As ParameterDiscreteValue
    Dim crParameterFieldDefinitions As ParameterFieldDefinitions
    Dim crParameterFieldLocation As ParameterFieldDefinition
    Dim crParameterValues As ParameterValues
    '
    ' Get the report's parameters collection.
    '
    crParameterFieldDefinitions = CR.DataDefinition.ParameterFields
    '
    ' Set the first parameter
    ' - Get the parameter, tell it to use the current values vs default value.
    ' - Tell it the parameter contains 1 discrete value vs multiple values.
    ' - Set the parameter's value.
    ' - Add it and apply it.
    ' - Repeat these statements for each parameter.
    '
    crParameterFieldLocation = crParameterFieldDefinitions.Item("StartDate")
    crParameterValues = crParameterFieldLocation.CurrentValues
    crParameterDiscreteValue = New CrystalDecisions.Shared.ParameterDiscreteValue
    crParameterDiscreteValue.Value = strStartDate
    crParameterValues.Add(crParameterDiscreteValue)
    crParameterFieldLocation.ApplyCurrentValues(crPara meterValues)
    '
    ' Set the Crytal Report Viewer control's source to the report document.
    '
    CrystalReportViewer.ReportSource = CR
If your report's DataSource is a .NET DLL DO NOT set the ReportDocument's DataSource property programatically as in the code below. However, if the DataSource is an XML Schema (.xsd) file you must set it prior to setting your parameters.
    cr.SetDataSource(DS.Tables("Customer"))
If your report's DataSource is a .NET DLL as shown here and the public functions that return the datatables available to your report where changed to require parameters, as illustrated below, the parameters can be set as just described.
    Public Function Customers(theStartDate As String) As DataTable
If the parameters were added to your Crystal Report by clicking the Parameter Fields node in the Crystal IDE's Field Explorer they can be set using the following code:
    Dim cr As New ReportDocument
    cr.Load(strReportPath)
    cr.SetDataSource(DS.Tables("Customers"))
    cr.SetParameterValue("StartDate", strMyParmValue)
    CrystalReportViewer.ReportSource = cr

First you have to create parameter field in Crystal report

from program you code like this,

        Dim crParameterFieldDefinitions As ParameterFieldDefinitions
        Dim crParameterFieldDefinition As ParameterFieldDefinition
        Dim crParameterValues As New ParameterValues
        Dim crParameterDiscreteValue As New ParameterDiscreteValue

        crParameterDiscreteValue.Value = "your date value here"

refer this

http://vb.net-informations.com/cryst...meter_date.htm

regards