dataProcessor updated flag

I have two treegrids working with dataprocessor (row mode). Im using d-n-d options between both treegrids. Is it possible to know which row is updatated but not saved?? is there any flag that I can use to determine the state of a row?? this is necesary because this is only way to know real the parent ID.

dataprocessor mantain array of updated rows
    dataprocessor.updatedRows

ID of latest updated row can be fetched as
    dataprocessor.updatedRows[dataprocessor.updatedRows.length-1]