# Design Time

To start using **RadDomainUpDown** just drag it from the toolbox and drop it onto the form.

## Smart Tag

Select **RadDomainUpDown** and click the small arrow on the top right position in order to open the **Smart Tag**. The **Smart Tag** for **RadDomainUpDown** lets you quickly access common tasks involved with building **RadDomainUpDown** elements and customizing appearance through themes.

> caption Figure 1: Smart Tag

![WinForms RadDomainUpDown Smart Tag](https://www.telerik.com/products/winforms/documentation/assets/7ccd2aa50142fce51335331dd0b42cac/editors-domainupdown-design-time001.png)

* **New Theme Manager**: adds a new **RadThemeManager** component to the form.

* **Edit UI Elements**: allows setting properties at multiple levels of the class hierarchy.

  > caption Figure 2: Element Hierarchy Editor

  ![WinForms RadDomainUpDown Element Hierarchy Editor](https://www.telerik.com/products/winforms/documentation/assets/00971a29bf9c071a8d7ec481175e786e/editors-domainupdown-design-time002.png)

* **Theme Name**: select a theme name from the drop down list of themes available for that control. Selecting a theme allows you to change all aspects of the control's visual style at one time.

* **Edit Items**: allows populating the **RadDomainUpDown** at design time. Additional information can be found in the [Populating with Data >> Design Time](https://www.telerik.com/products/winforms/documentation/controls/editors/domainupdown/populating-with-data/design-time) help article.

* **Learning Center:** Navigate to the Telerik help, code library projects or support forum.

* **Search:** Search the Telerik site for a given string.

## See Also

* [Structure](https://www.telerik.com/products/winforms/documentation/controls/editors/domainupdown/structure)
* [Getting Started](https://www.telerik.com/products/winforms/documentation/controls/editors/domainupdown/getting-started)