Data Report refresh Problem,Plz Help Me

I have created Data Report which is linked with SQL Server database. my problem is i want to print this report without showing the report. i succeded some part, it means that the report is printing without showing the report with the follwing code

datareport1.printreport

Whenever I do a call from VB with passing parameter it is printing with First parameter value,even iam sending another parameter still it is printing with first one. i used the folwing statement

Datareport1.refresh
datareport1.printreport


Can anyone help me with the command to refresh the Datareport1?
so,plz help me reg. this asap

with advance Thanks
anil

Hai,

Try this one

if DataEnvironement1.rsCommand1.state=1 then DataEnvironment1.rsCommand1.close
endif

datareport1.printreport