InfoPath Dev

I'm trying to write some vbScript that allows a user to select a value from a drop down list that then adds a row to a repeating table and populates it with the appropriate values.

When I try to create a refrence to the object using:
Set oDOM = XDocument.GetDOM("PO")
I get the error "data object does not exist".

Under data sources I have the followng structure:
Main
PO (group)
PurchaseOrder (Repeating group)
Prodct (Field element)
QTY (Field element)

Can ayaone help?

Good Day Geraint,

GetDOM() gets the entire DOM for a specific data source. The parameter should be the name of the data source. In the Data Source taskpane, what is the name displayed there? This is what should be passed into the GetDOM() method.

Once you have the dom, then you can query it for the PO node. I hope this helps, good luck!