Data containers

HI, two basic question: How to know if a container is in edit mode and how to access values of the properties of a data container (inside of a controller)?

Hi,

There is no such thing as “edit mode” in data containers. They just contain entity instances to enable data binding for visual components.
You can access contained entities via getItem(), getItems(), getMutableItems() methods. Just inject the data container into the controller and use these methods.