urgent:help needed in parameter field of crystal report

I created a crystal report where it has to display records between two dates. and the dates are used in the formaulae in crystal report.

I cann't use selection formulae as the two dates are used in the formulaes of the crystal report

Eg:- display records between starding date and ending date

The formulae in the report includes like

iif( "table.date < sdt", do this, do that)

For this i created two parameter field and used in the report. when preview the report it prompts for the parameter and input the value and works fine.

Now i need to include the report in my application and the parameter should be passed through the application.

Please any one help me regarding this

thanx

Pls see http://vbforums.com/showthread.php?p=2645742 the answer is there...

If you are using VB 6.0 then the answer is in the post 2, and for VB.NET you can pass the SQL query according to the condition.