ClassRadDropDownButtonAutomationPeer
Provides the UI automation peer for the RadDropDownButton control, enabling accessibility support and interaction with automation clients. This class extends RadButtonAutomationPeer and implements the IExpandCollapseProvider interface, which provides methods to expand and collapse the drop-down content associated with the RadDropDownButton. It controls the state reporting of the drop-down button, handles invocation to toggle the drop-down, and retrieves automation properties such as the control's name and help text. Additionally, it supports the retrieval of child automation peers for any content displayed in the drop-down.
Definition
Namespace:Telerik.Windows.Automation.Peers
Assembly:Telerik.Windows.Controls.dll
Syntax:
public class RadDropDownButtonAutomationPeer : RadButtonAutomationPeer, IExpandCollapseProviderInheritance: objectRadButtonAutomationPeerRadDropDownButtonAutomationPeer
Derived Classes:
Implements:
Inherited Members
Constructors
RadDropDownButtonAutomationPeer(RadDropDownButton)
Initializes a new instance of the RadDropDownButtonAutomationPeer class.
Declaration
public RadDropDownButtonAutomationPeer(RadDropDownButton owner)Parameters
owner
The owner.
Properties
ExpandCollapseState
Gets the state (expanded or collapsed) of the control.
Declaration
public ExpandCollapseState ExpandCollapseState { get; }Property Value
ExpandCollapseState
The state (expanded or collapsed) of the control.
Methods
Collapse()
Hides all nodes, controls, or content that are descendants of the control.
Declaration
public void Collapse()Expand()
Displays all child nodes, controls, or content of the control.
Declaration
public void Expand()GetAutomationIdCore()
Returns the string that uniquely identifies the FrameworkElement that is associated with this . This method is called by .
GetChildrenCore()
Returns the collection of child elements of the UIElement that is associated with this . This method is called by .
Declaration
[SuppressMessage("Microsoft.Design", "CA1002:DoNotExposeGenericLists", Justification = "This is an override of a built-in class, the return type cannot be changed.")]
protected override List<AutomationPeer> GetChildrenCore()Returns
List<AutomationPeer>
A list of child AutomationPeer elements.
GetClassNameCore()
Returns the name of the UIElement that is associated with this . This method is called by .
Declaration
protected override string GetClassNameCore()Returns
The name of the owner type that is associated with this . See Remarks.
Overrides
GetHelpTextCore()
Returns the string that describes the functionality of the FrameworkElement that is associated with this . This method is called by .
GetItemStatusCore()
Declaration
protected override string GetItemStatusCore()Returns
Overrides
GetNameCore()
Returns the text label of the FrameworkElement that is associated with this . This method is called by .
Declaration
protected override string GetNameCore()Returns
The text label of the element that is associated with this automation peer.
Overrides
GetPattern(PatternInterface)
When overridden in a derived class, gets an object that supports the requested pattern, based on PatternInterface input and the peer's implementation of known patterns.
Declaration
public override object GetPattern(PatternInterface patternInterface)Parameters
patternInterface
PatternInterface
A value from the PatternInterface enumeration.
Returns
The object that implements the pattern interface; null if this peer does not support this interface.
Overrides
Invoke()
Sends a request to activate a control and initiate its single, unambiguous action.
Declaration
public void Invoke()