# Structure

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

Like all Telerik WinForms controls **RadPanel** is build upon [Telerik Presentation Framework (TPF)](https://www.telerik.com/products/winforms/documentation/telerik-presentation-framework/overview/overview). **TPF** consists of various elements (such as primitives and layouts) that are the building blocks of the controls.

> caption Figure 1: RadPanel\`s Element Hierarchy

![WinForms RadPanel Element Hierarchy](https://www.telerik.com/products/winforms/documentation/assets/097d9adf756afc1d65e20dfeba1fde47/panels-and-labels-panel-structure001.png)

> caption Figure 2: RadPanel\`s Structure

![WinForms RadPanel Structure](https://www.telerik.com/products/winforms/documentation/assets/dc9693e63c6fae28344a81ec34e773c0/panels-and-labels-panel-structure002.png)

* **RadPanelElement**: Represents the main element of the control.
  * **FillPrimitive**: Background color of the control
  * **BorderPrimitive**: Responsible for the control\`s borders
  * **TextPrimitive**: Sets the properties of the text portion of the control.

## See Also

* [Design Time](https://www.telerik.com/products/winforms/documentation/controls/panels-and-labels/panel/design-time)
* [Getting Started](https://www.telerik.com/products/winforms/documentation/controls/panels-and-labels/panel/getting-started)