OK, Don,
I will looking better your code suggestion, but I wait that it works from SubReportClientDocument class. From ReportClientDocument, I don't have access to subreport parameters.
Ah, the method "BrowseFieldValues" is available to me in "CrystalDecisions.ReportAppServer.Controllers.ISCRSubreportClientDocument.RowsetController". Only doesn't works at run.
Thanks