If your case was dismissed due to this agreement, as in a pre trial diversion, then you can say you were never convicted of anything. Unless you have had the record of the arrest expunged, it will still show that you were arrested on a background check. You may want to look into getting an expunction first, so your background check will come up clean. On the other hand, if this is deferred adjudication that you are talking about, you will only be able to get an order of nondisclosure, which is not the same as an expunction. Either way, contact an attorney to discuss your options here.