IsRecordChanged
IsRecordChanged: Boolean
Example
procedure ScriptEvent(var Value: variant);
begin
IsRecordChanged := True;
Value := IsRecordChanged;
end;
Usage
IsRecordChanged is a record-level reference flag associated with the current view mapping.
Set it only in the correct map context and define which later script/configuration reads it. It is not an automatic field comparison, database dirty flag or save gate; use SaveData for the separate final map-save decision.
Additional Technical Info
IsRecordChanged is a live mutable scripting flag/reference. Assignment writes directly through the bound pointer; it does not create an isolated local value.
| Property | Detail |
|---|---|
| Runtime binding | Current TvxViewMap.FIsRecordChanged |
| Reset/default | View-map reset and insertion of each new destination view record assign False. |
| Thread safety | Direct mutable state; not for asynchronous/concurrent mutation |
Executable effect
For a field map it points to the containing ViewMap.IsRecordChanged; for a view-map event it points to that view map's flag. Core source exposes/resets it but does not establish a universal automatic consumer.
Context and lifecycle
The name is registered for compilation everywhere, but a pointer is assigned only when the map item is TvxFieldMap or TvxViewMap. Access outside those contexts is unsupported/unbound.
The owner controls lifetime. Scripts must not retain an address/reference beyond the current context. Later reset or processing stages can overwrite the value.
Cautions
Set it only in the correct map context and define which later script/configuration reads it. It is not an automatic field comparison, database dirty flag or save gate; use SaveData for the separate final map-save decision.
Assignment is in-memory state mutation. It does not authenticate a caller, validate an identifier, persist a row, commit/roll back a transaction or prove an external effect unless the executable-effect section explicitly says otherwise.
Related entry
Flagscompares bindings, defaults and proven consumers for the complete group.
External references
- This entry is a Velox pointer binding rather than a wrapped Delphi/FPC core function; current product source and the consuming workflow are the behavioural contract.