Inquiry Primary Key (Not server Generated)

Classic Servoy
2

Hi

Query onDatachange of form element “person_id” !?
var qb = “select person_id from personas where person_id = ?”
var result = databaseManager.getDataSetByQuery(server_name,qb,[newValue],-1)
if(result.getMaxRowIndex() > 0)
{
error…
}

regards
Albert