Rótulo
Label controls usually provide information in the user interface (UI). Historicamente, um Label tem continha somente texto, mas porque a Label que acompanha o Windows Presentation Foundation (WPF) é um ContentControl, ele pode conter texto ou um UIElement.
A Label provides both functional and visual support for access keys. It is frequently used to enable quick keyboard access to controls such as a TextBox. To assign a Label to a Control, set the Label.Target property to the control that should get focus when the user presses the access key.
The following image shows a Label "Themes" that targets a ComboBox. Quando o usuário pressiona, o ComboBox recebe o foco. For more information, see Como: Definir a Propriedade Target de um Rótulo.