I have tried the script but it doesn't work, I attach the file with the button2 in the form scedetest. I wait for your help!

New Feature in latest release 8.5.0.2450

YOu can now delete without getting dialogue based on the position of where the button is places.

RecordDelete("SubForm") will delete the row where the button is placed without affecting any other row.

More..

RecordDelete()

retval := RecordDelete().
RecordDelete("Argument")
RecordDelete("All")
RecordDelete("MainForm")
RecordDelete("Subform")+RecordSave()
RecordDelete("Subforms")

http://www.dataease.com/dg3_HelpView/?PageID=13764...