🚀 go-pugleaf

I am using Live Cycle designer with an XFA form that is reading its data from an XML data file -
This is the best feature in all of Adobe land, etc ....
however....
in the real world - not all XML environments are the same or even sane.
I have a situation where the schema is only being loosely adhered to - mostly in newer instances of the data suppler - while older data retains some legacy processing : like
Not using a unique XML Element to define a separate data segment - but rather embedding important processing data at the value level .

So ,with all that being said, my question is this -

Is there a way to check the contents of a field - determine that I don't want to display ti- or that I do want to display it ???
I don't just want an error message stating that it isn't X, or Y or Z ... , etc.

For instance if I wanted to skip anything that had a null field for a particular field value - .

if (this.rawValue == ""} {"do something : like set to a value that will fail the validate script ... };

If I test it after the bind event - then follw that with a validation script ... etc ....
This is what I am hoping that I can do .