XML replaceData method keep getting "Object doesn't support this property or method"

I keep getting an "Object doesn't support this property or method" whenever I call the XML replaceData method.  I'm basically trying to replace the value of element A with the value of element B.  Please advise.  Thanks for your help.

DNice30

'===========================
Const XML_ELEM_TOOLTIPCOL="TOOLTIPCOLUMN"
Const XML_ELEM_NAME="NAME"
Const XML_ELEM_COLUMN="COLUMN"
Dim sColName, sToolTipVal
Dim oXMLDoc, oCol, oName
Dim i

Set oXMLDoc = Server.CreateObject("MSXML2.FreeThreadedDOMDocument.3.0")      
oXMLDoc.async = False
oXMLDoc.loadXML(sDomColumns)
      
Set oCol=oXMLDoc.selectNodes("//COLUMN[NAME][TOOLTIP]")

For i=0 To (oCol.length-1)
      With oCol.item(i)
            sToolTipVal=Trim(UCase(.getElementsByTagName(XML_ELEM_TOOLTIPCOL).item(0).text))
            Set oName=.getElementsByTagName(XML_ELEM_NAME)
            Call oName.item(0).replaceData(0, 0, sToolTipVal)  '<<error here>>
      End With
Next
Set oName=Nothing
Set oXMLDoc=Nothing
Set oCol=Nothing
'===========================
DNice30Asked:
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tserCommented:
oName.item(0) is probably an XMLDOMElement
replaceData is a method of XMLDOMText.

I believe
oName.item(0).firstChild.replaceData(0, 0, sToolTipVal) will work

but to be safe, you'll have to check the nodeType of oName.item(0).firstChild and make sure
it is NODE_TEXT (numerical value is 3)

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tserCommented:

Have you check if oName actually contain a list of nodes ?
i.e. Any chance oName or oName.item(0) is NULL
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DNice30Author Commented:
Thanks for your response tser.  I do get a value returned if I simply Response.Write oName.item(0).text.  But still for some reason, the replaceData method is not available for this object.
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DNice30Author Commented:
Thanks, tser.
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