Asp.net Application How to push dataset to report and subreport

[AndyBor]

I have a CR report that has a subreport linked dataset.xsd Need to know how to output the CR report and subreport to a CrystalReportViewer1. I have been able to push the data to see the main report but can't see the subreport data?

Dim conHaz As OleDbConnection = New OleDbConnection(ConfigurationSettings.AppSettings("strConn"))

Dim oleAdapter As New OleDbDataAdapter
'Main report
Dim RsPrintLableeRFD As New PrintLableeRFD
'Sub report
Dim RsPrintLabeeRFDChem As New PrintLabeleRFDChem

Dim strContentSQL As String
strSQL = " some sql statement"

oleAdapter.SelectCommand = New OleDbCommand(strSQL, conHaz)
oleAdapter.Fill(RsPrintLableeRFD, "PrintLableWebRFD")

Dim oRpt As eRFDLabel
oRpt = New eRFDLabel
oRpt.SetDataSource(RsPrintLableeRFD)
oRpt.SetDatabaseLogon("Admin", "")

??I think I must fill the subreport?

CrystalReportViewer1.ReportSource = oRpt

Please help I am new with .net and crystal report.