# Structure

This article describes the inner structure and organization of the elements which build the **RadRangeSelector** control.

**RadRangeSelector** is built up of several levels of nested elements.  Images below demonstrate the element tree of **RadRangeSelector**.

> caption Figure 1: RadRangeSelector\`s Element Hierarchy

![WinForms RadRangeSelector Element Hierarchy](https://www.telerik.com/products/winforms/documentation/assets/104aef8c6087bbe23de03562c5b35b60/radrangeselector-structure001.png)

> caption Figure 2: RadRangeSelector\`s Structure

![WinForms RadRangeSelector Structure](https://www.telerik.com/products/winforms/documentation/assets/5b5dad2d8a147f133d14150f629440a2/radrangeselector-structure002.png)

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

* The **RadRangeSelectorElement** represents the entire **RadRangeSelector** control. It contains various  instances of type **RangeSelectorScaleContainerElement** and a single instance of **RangeSelectorScrollElement** and **RangeSelectorBodyElement**.

* **RangeSelectorScaleContainerElement** is a base class for each scale that is represented in **RadRangeSelector**. Each element that implements **IRangeSelectorElement** interface decides what scales will contain and how they will be arranged. When the **RadChartView** is associated with **RadRangeSelector** the scales are created according to the content of the Axes.

* **RangeSelectorScrollElement** represent the track bar at the bottom of **RadRangeSelector**. This element will show only if the associated element implements the **IRangeSelectorElement** Interface.

* **RangeSelectorBodyElement** wraps and arranges two instances of **RangeSelectorArrowButton** and **RangeSelectorViewContainer**.

* **RangeSelectorViewContainer** is the class that arranges the associated element, **RangeSelectorSelectionRectangle** and **RangeSelectorTrackingElement**.

* **RangeSelectorTrackingElement** is container that contains all elements that are used by the tracking logic.

## See Also

* [Design Time](https://www.telerik.com/products/winforms/documentation/controls/rangeselector/design-time)
* [Getting Started](https://www.telerik.com/products/winforms/documentation/controls/rangeselector/getting-started)
* [Integration with RadChartView](https://www.telerik.com/products/winforms/documentation/controls/rangeselector/integration-with-radchartview)