---
title: "ComboBox"
ms.date: "03/30/2017"
f1_keywords: 
  - "AutoGeneratedOrientationPage"
helpviewer_keywords: 
  - "controls [WPF], ComboBox"
  - "ComboBox control [WPF]"
ms.assetid: fe0c2f62-fec2-4c41-a37e-5773d284170c
---
# ComboBox
The <xref:System.Windows.Controls.ComboBox> control presents users with a list of options. The list is shown and hidden as the control expands and collapses. In its default state, the list is collapsed, displaying only one choice. The user clicks a button to see the complete list of options.  
  
 The following illustration shows a <xref:System.Windows.Controls.ComboBox> in different states.  
  
 ![Combo boxes in default and pressed states](./media/ss-ctl-combobox.gif "SS_CTL_combobox")  
Collapsed and expanded  
  
## Reference  
 <xref:System.Windows.Controls.ComboBox>