TabItem Control Type

This topic provides information about Microsoft UI Automation support for the TabItem control type.

A tab item control is used as the control within a tab control that selects a specific page to be shown in a window.

The following sections define the required UI Automation tree structure, properties, control patterns, and events for the TabItem control type. The UI Automation requirements apply to all tab item controls where the UI framework/platform integrates UI Automation support for control types and control patterns.

This topic contains the following sections.

Typical Tree Structure

The following table depicts a typical control and content view of the UI Automation tree that pertains to tab item controls and describes what can be contained in each view. For more information about the UI Automation tree, see UI Automation Tree Overview.

Control ViewContent View
  • TabItem
    • Image (0 or 1)
    • Text
    • Pane
      • Various controls (0 or more)
  • TabItem
    • Pane
      • Various controls (0 or more)

 

Relevant Properties

The following table lists the UI Automation properties whose value or definition is especially relevant to the TabItem control type. For more information about UI Automation properties, see Retrieving Properties from UI Automation Elements.

UI Automation PropertyValueNotes
UIA_AutomationIdPropertyIdSee notes.The value of this property must be unique among all peer elements in the raw view of the UI Automation tree.
UIA_BoundingRectanglePropertyIdSee notes.The outermost rectangle that contains the whole control.
UIA_ClickablePointPropertyIdSee notes.The tab item control must have a clickable point that causes the item to become selected.
UIA_ControllerForPropertyIdSee notes.This property can be used as pointer to the associated tab pane. This is useful when it cannot host a pane as child of the tab item object.
UIA_ControlTypePropertyIdTabItemThis value is the same for all UI frameworks.
UIA_IsContentElementPropertyIdTRUEThe tab item control is always included in the content view of the UI Automation tree.
UIA_IsControlElementPropertyIdTRUEThe tab item control is always included in the control view of the UI Automation tree.
UIA_IsKeyboardFocusablePropertyIdSee notes.If the control can receive keyboard focus, it must support this property.
UIA_LabeledByPropertyIdNullThe tab item control does not have a static text label.
UIA_LocalizedControlTypePropertyIdSee notes.Localized string corresponding to the TabItem control type. The default value is "tab item" for en-US or English (United States).
UIA_NamePropertyIdSee notes.The tab item control self-labeled.

 

Required Control Patterns

The following table lists the UI Automation control patterns required to be supported by all tab item controls. For more information on control patterns, see UI Automation Control Patterns Overview.

Control PatternSupportNotes
ISelectionItemProvider RequiredThe tab item control must support IUIAutomationSelectionItemPattern.
IInvokeProvider NeverThe tab item control never supports IUIAutomationInvokePattern.

 

Required Events

The following table lists the UI Automation events that tab item controls are required to support. For more information on events, see UI Automation Events Overview.

UI Automation EventNotes
UIA_AutomationFocusChangedEventId
UIA_BoundingRectanglePropertyId property-changed event.
UIA_IsEnabledPropertyId property-changed event.If the control supports the IsEnabled property, it must support this event.
UIA_IsOffscreenPropertyId property-changed event.If the control supports the IsOffscreen property, it must support this event.
UIA_SelectionItem_ElementRemovedFromSelectionEventId
UIA_SelectionItem_ElementSelectedEventId
UIA_StructureChangedEventId

 

Related topics

Conceptual
UI Automation Control Types Overview
UI Automation Overview

 

 

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