Structure

Updated over 6 months ago

This article illustrates the inner structure and organization of the elements which build the RadTrackBar control.

Figure 1: RadTrackBar's elements hierarchy

Figure 2: RadTrackBar's visual structure

Here is a brief explanation of the various elements in the tree:

• The RadTrackBarElement represents the entire RadTrackBar control. It contains two instances of TrackArrowButtons that represent the handlers (buttons) and the TrackBarBodyElement.

• TrackBarBodyElement wraps and arranges TrackBarScaleContainerElement and TrackBarIndicatorContainerElement.

• TrackBarScaleContainerElement wraps and arranges the TrackBarScaleElement and TrackBarLineElement.

• Each instance of TrackBarScaleElement contains its own set of TrackBarTickContainerElement and TrackBarLabelContainerElement that generates and arranges the ticks and labels respectively.

• TrackBarIndicatorContainerElement generates and arranges the TrackbarIndicatorElements according the mode of RadTrackBar and the content of the Ranges collection. This class creates a connection between the logical TrackBarRange and its visual representation - TrackBarIndicatorElements.

• TrackBarIndicatorElements represent a set of TrackBarThumbElement and TrackBarRangeElement. This set represents two thumbs and a line between them.

See Also

• RadControlSpy

• Getting Started

• Design Time