For my user control, I created a custom resource class for all those strings which need localization but which are the same for all instances of the control.
However, there are some instance-specific properties of the control which also need localization.
I remember the "MultilingualProperty" attribute for control properties. This allowed automatic language-specific control properties, but this attribute is depreciated and has no effect in 9.2.
I have my pages synchronized between languages. I like to keep it this way. I would like to be able to close the control's settings dialog with "save to all languages" (so all language-agnostic properties are in sync), yet have some language-specific properties.
Is there a recommended way of achieving this?