Thanks for your reply... i just fixed my issue!
The problem I had was...
Dim rptLabelSubreport As SubReport = New SubReport
rptLabelSubreport.ReportSource =
New EHSReporting2011.WM_PickupLabelsChild
rptLabelSubreport.Name =
"rptLabel" & i & "_WM_PickupLabelsChild"
and this fixed it... (I use i as an integer variable to differentiate between the subreport instances)
Dim rptLabelSubreport As SubReport = New SubReport
rptLabelSubreport.ReportSource =
New EHSReporting2011.WM_PickupLabelsChild
rptLabelSubreport.ReportSource.Name =
"rptLabel" & i & "_WM_PickupLabelsChild"