I am not getting calender in front of the Date textbox.Pls Help!!!

I created a reoport using wizard.In my quesry i took two date parameters.But when i run my report i get two texboxes StartDate and EndDate.How do i get calender button in front of the text boxes.Below is my query.

SELECT dbo.tblReferralTransferStatus.RefId
FROM dbo.tblReferralTransferStatus INNER JOIN
dbo.tblDownloadTracking ON dbo.tblReferralTransferStatus.VendorId = dbo.tblDownloadTracking.VendorId AND
dbo.tblReferralTransferStatus.DateModified < dbo.tblDownloadTracking.DateModified INNER JOIN
dbo.tblVENDOR ON dbo.tblReferralTransferStatus.VendorId = dbo.tblVENDOR.VendorId
WHERE (dbo.tblVENDOR.VendorName = @.vendorname)AND (dbo.tblReferralTransferStatus.DateModified >= CAST(@.StartDate AS varchar)) AND (dbo.tblReferralTransferStatus.DateModified < CAST(@.EndDate AS varchar))

Hello,

Can you verify that your parameters are set to the DateTime data type? Open Report Parameters from the Report menu, select StartDate and EndDate and make sure the Data type is set to DateTime.

Jarret