vbScript System.Collections.ArrayList Object does not support... list.Add

Question

I am having a problem resolving the oList object with my CreateObject("System.Collections.ArrayList")

The error I get in vbscript

"Microsoft VBScript runtime error: Object doesn't support this property or method: 'list.Add'"

Based on this tutorial I know you can use COM wrapped .Net components in vbscript; so why won't this work?

Additional information:

When I am debugging in VS08 and add a watch to list, it says Children could not be evaluated.

The watch for objNode.value has a two character string value. (Which is expected behavior)

Function ProcessXML(oXML) 
  STOP
  xPathExemptions= "//Exemption/@ExemptCodeWord"
  Dim xmlDoc : Set xmlDoc = CreateObject("MSXML2.DOMDocument.6.0")
  xmlDoc.Async = False
  xmlDoc.loadXML(oXML)
 
  Dim colNodes 
  Set colNodes = xmlDoc.selectNodes(xPathExemptions)
  Dim oList
  Set oList = CreateObject("System.Collections.ArrayList")
  Dim objNode
  
  For Each objNode in colNodes
    oList.Add = objNode.value
  Next
  
  'ProcessExemptions = CStr(xmlDoc.selectNodes(xPathExemptions))

End Function 

If you have any comments on my vbscript; please let me know - just started learning and don't know best practices.

Answer 1

Change:

oList.Add = objNode.value

...to:

oList.Add objNode.value

or (thanks to the guidance from @Ansgar)

Call oList.Add(objNode.value)

Here's a demonstration:

Option Explicit

Dim oList : Set oList = CreateObject("System.Collections.ArrayList")

oList.Add "Banana"
oList.Add "Apple"
oList.Add "Orange"
oList.Add "Grapes"
oList.Add "Plum"

oList.Sort

Dim oItem
For Each oItem In oList
    WScript.Echo oItem
Next

Expected Output:

Apple
Banana
Grapes
Orange
Plum

You can find more on the quirky rules of the use of parentheses with VB and VBScript in Eric Lippert's informative article.