Represents controls that visually expand to display content and collapse to hide content.
Assembly: UIAutomationClient (in UIAutomationClient.dll)
Thetype exposes the following members.
|Collapse||Hides all descendant nodes, controls, or content of the AutomationElement.|
|Equals(Object)||Determines whether the specified object is equal to the current object. (Inherited from Object.)|
|Expand||Displays all child nodes, controls, or content of the AutomationElement.|
|Finalize||Frees resources and performs other cleanup operations before the object is reclaimed by garbage collection. (Inherited from BasePattern.)|
|GetHashCode||Serves as the default hash function. (Inherited from Object.)|
|GetType||Gets the Type of the current instance. (Inherited from Object.)|
|MemberwiseClone||Creates a shallow copy of the current Object. (Inherited from Object.)|
|ToString||Returns a string that represents the current object. (Inherited from Object.)|
Aggregate controls—built with child objects that provide the UI for expand/collapse functionality—must support the control pattern while their child elements do not. For example, a combo box control is built with a combination of list box, button, and edit controls, but it is only the parent combo box that must support the .
A menu control, even though an aggregate of individual menu items, is an exception to this rule. The menu items support the control pattern, but the parent menu control does not. A similar exception applies to the tree and tree item controls.
Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.