Field validation under Views slickgrid mode - is it possible?

Hi, everybody!
I'm using the awesome Slickgrid module to list and edit multiple nodes and to fill in values in fields form these nodes. This is extremely useful you need to have a global look over the nodes from one content type and directly edit them from a View.
My question is:
Is there a method to validate a field for existing value (presence or lack of data in the database), when editing rows in a multiple mode and set and error message when new and different from the existing input value is detected to that certain field, before saving the new value in the DB? This validation would be great if someone do not want to change a field value by mistake.
Thank you in advance!