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ComboBox.IsDropDownOpen Property

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Gets or sets a value that indicates whether the drop-down portion of the combo box is currently open.

Namespace:  System.Windows.Controls
Assembly:  System.Windows (in System.Windows.dll)


Public Property IsDropDownOpen As Boolean
public bool IsDropDownOpen { get; set; }
<ComboBox IsDropDownOpen="bool"/>

Property Value

Type: System.Boolean
true if the drop-down portion is open; otherwise, false. The default is false.


Dependency property identifier field: IsDropDownOpenProperty

Version Information


Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0


For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.