I have the TableName::Status field that can have two values; Open or Closed.
What I want to do is to make sure that once the user chooses the option "Closed" it can't be changed to "Open".
The rationale is that once a record is Closed it remains so.
The way to do it I guess on ObjectModify to trigger a script that checks for the value of the TableName::Status field and if it is = "Closed" then prevents any further modification.
Can it be done?