Telling if something has changed

[Das Goravani]

Hello all

Any ideas on “telling if some data has changed” in a complex situation where there are many fields in a file, some rows, that could have changed.. when they close the window.. to be able to tell if something has changed, is there an easy way? 

How does one track if something has changed.. the hard coded way seems big.. putting code in all places where something could change that tracks if something has.. seems like a big retrofit task

I’m wondering if there’s a compare function I’ve overlooked.. or a technique I haven’t thought of

Any input appreciated

Das