Field changes prompting save

[Bert Shuler]

I created a sub-stack with my fields, and I am using a sqlite db to populate them.
It has the standard "next record" and CRUD type buttons.

When I close the substack via the X (windows form close), it prompts me to save. 
I want to do the saving to the DB, and the substack should not prompt to save.

Any ideas on how to do this? Honestly, I did some searching in the docs, but I am not sure which terms to search for.