xfa.resolvenode returns null on one field whereas returns a node on the event of the specific field

Hi Experts,

I have a requirement wherein I need to populate values in my Table row depending upon the value of another text field.

The problem is when I use this line of code var rsize = xfa.resolvenode("MyForm.SubForm1.Table1.Row1[*].UOM") in the change event of say Field1, it returns 0 on accessing rsize.length whereas the same line returns 5 which is the desired value on initialize event of Table1.Row1.UOM.

How to get this thing working? I need to use similar lines of code in 5 fields i.e. need to access and assign values to table rows dependimg upon change events in 5 different fields.

I am new to Adobe forms and stuck up with this since a long time. Let me know what is the ideal way to get this thing working. And where do I put my javascript code if the dependency to fill the row values is on some other field.

Thanks a lot in advance.