Description:
Provides a way to find a ready-to-use validator for the PersistentSetting class for the given the key, or obtaining null.
Syntax:
Parameters:
- key
- Type: string
- The name of the setting key.
Returns:
Type: EventHandler<PersistentSettingsEventArgs<T>>
A valid validator, or None if no validator was found.
Available since:
5.0