I am referring a tutorial at http://www.katieandemil.com/ssrs-median-function-2008-R2-custom-code-example to write a median function. Following the instructions, I can see median values from custom code are shown correctly under Report Preview. However, when i export the report into PDF/Excel format, the calculated median values turn out to be "#ERROR". Any thoughts? Thank you!
Custom Codes
Dim valuesAs System.Collections.ArrayList
Function AddValue(ByVal newValueAsDecimal) AsDecimal
If (valuesIsNothing) Then
values = New System.Collections.ArrayList()
EndIf
values.Add(newValue)
AddValue = values.Count
EndFunction
Function GetMedian()AsDecimal
Dim countAsInteger = values.Count
If (count > 0)Then
values.Sort()
If countMod 2 = 1 Then
GetMedian = values((count - 1) / 2)
Else
GetMedian = (values((count / 2) - 1) + values((count / 2))) / 2
EndIf
EndIf
EndFunction