A date-time is required here. Crystal Report

I am passing the record selection forluma using the following code:
 report.DataDefinition.RecordSelectionFormula =
"{trans_dtl_conso.transaction_date}='" & Format(dtpFrom.Value, "MM-d-yyyy")  & "'"

Following error message appears:
A date-time is required here.
Error in File ...report file name dot rpt;
Error in formula <Record_Selection>.
'{trans_dtl_conso.transaction_date}='03-1-2006'
A date-time is required here.

datastruce of transaction_date is datetime in sqlserver.
I want to validate only the date.