Returns True if control is considered empty, i.e. when there is no external data found or no external data filled, otherwise returns False. Default value is True.

Clears any bound controls possibly set with external data during filling stage, setting control properties to their default values at the same time.

Represents a data-binding stage, when control gets filled with external data. At this stage external data is possibly pre-processed and suited to the control itself.

Represents initializion stage of the control where any explicit control initialization is being performed (i.e. localization, resources loading, sizing, etc.).