Show Custom Dialog On Container Field

Discussion created by aliabbassipro on Aug 16, 2017
Latest reply on Aug 17, 2017 by schamblee

Hi. I have container field on my table and user uploads his product picture on there.

I want when user upload product picture on that record and he wants to upload the other photo on there I show a custom dialog to him, "you can't upload the picture again first please this photo then try again" but I don't know how can I do this work.