Read-only decision tables

Read-only means that the opened decision table cannot be changed. It is only possible to re-sort the decision table, preview it in print preview, print it and save it with a new name.

Whether a decision table is read-only (i.e. write-protected) or not is indicated by an entry in the bottom left-hand corner of LF‑ET

01

Automatic write-protection

A deci­sion ta­ble is automa­tically opened as read-only in the following cases:

  • It is a backup file ($ bak extension)

  • It is an imported file

Open as read-only

A decision table is automatically marked as 'locked' (i.e. locked, 'in progress') when opened with LF‑ET. For this purpose, a ‘lock file’ is always created when opening, which has the same name as the decision table, only with the extension '.lfet $ temp’_.

Information in the lock file
Local.Host

Name and IP address of the PC
Session.Start

Time stamp of opening the deci­sion ta­ble
Session.UID

(Unique ID) Unique identifier of the LF‑ET session with which the deci­sion ta­ble was opened
Last.Refresh

Time stamp of the last update of the lock file. As long as LF‑ET is active, the lock files are updated every 3 minutes
User

Name of the user

Closing a deci­sion ta­ble automa­tically deletes the associa­ted lock file.

If an existing and active lock file is found when opening, the user receives a hint and the option to cancel opening or to open the deci­sion ta­ble in read-only mode.

01

An existing lock file is ignored in the following cases:

  • If the lock file originates from the current LF‑ET session.

  • If the last update of the lock file was more than 10 minutes ago, an active LF‑ET session will update lock files every 3 minutes.