Operation illegal on linked parameter.when linking tp subreport

Hello,

I am using VS2010SP1 with Crystal Reports for .NET Framework 4.0.

To populate reports I use datasets that are created in VB.NET application and populates using ReportDocument object.

In one of reports I need to create sub report, that I placed in footer of a group.

Report shows all data correct exept in subreport.

If I do not set in subreport links parameters it shows all records, but when I try to create any parameter it gives me an error

"Operation illegal on linked parameter". I tried to check/uncheck checkbox (Select data in subreport based on field) but it did not

helped me and now I do not know what else can be done.

Is there any place that I can set paramenters for subreport?

Thank you in advance.

yurluc.