The SemanticZoom control enables the user to ZOOM between TWO different views of the same content so that they can quickly navigate through a large data set. The zoomed-in view is the main view of the content. You show the COMPLETE data set in this view. The zoomed-out view is a higher-level view of the same content. You typically show the GROUP headers for a grouped data set in this view. For example, when viewing an ADDRESS book, the user could zoom in on a letter and see the names associated with that letter.

The SemanticZoom control enables the user to zoom between two different views of the same content so that they can quickly navigate through a large data set. The zoomed-in view is the main view of the content. You show the complete data set in this view. The zoomed-out view is a higher-level view of the same content. You typically show the group headers for a grouped data set in this view. For example, when viewing an address book, the user could zoom in on a letter and see the names associated with that letter.