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UI Automation Support for the Tab Item Control Type

This topic provides information about UI Automation support for the Tab Item control type. In UI Automation, a control type is a set of conditions that a control must meet in order to use the ControlTypeProperty property. The conditions include specific guidelines for UI Automation tree structure, UI Automation property values and control patterns.

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 Tab Item control type. The UI Automation requirements apply to all tab item controls, whether Windows Presentation Foundation (WPF), Win32, or Windows Forms.

This topic contains the following sections.

Required UI Automation Tree Structure

The following table depicts the control view and the 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 on the UI Automation tree, see UI Automation Tree Overview.

Control View Content View
  • Tab Item

    • Image (0 or 1)

    • Text

    • Various controls (0 or more)

  • Tab Item

  • Various controls (0 or more)

Required UI Automation Properties

The following table lists the UI Automation properties whose value or definition is especially relevant to tab item controls. For more information on UI Automation properties, see UI Automation Properties for Clients.

UI Automation Property Value Notes

AutomationIdProperty

See notes.

The value of this property needs to be unique across all controls in an application.

BoundingRectangleProperty

See notes.

The outermost rectangle that contains the whole control.

ClickablePointProperty

See notes.

The tab item control must have a clickable point that causes the item to become selected.

IsKeyboardFocusableProperty

See notes.

If the control can receive keyboard focus, it must support this property.

NameProperty

See notes.

The tab item control is self-labeled.

LabeledByProperty

Null

The tab item control does not have a static text label.

ControlTypeProperty

TabItem

This value is the same for all UI frameworks.

LocalizedControlTypeProperty

"tab item"

Localized string corresponding to this control type.

IsContentElementProperty

True

The tab item control must always be content.

IsControlElementProperty

True

The tab item control must always be a control.

Required UI Automation Control Patterns

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

Control Pattern/Pattern Property Support/Value Notes

ISelectionItemProvider

Yes

The tab item control must support SelectionItemPattern.

IInvokeProvider

No

The tab item control never supports InvokePattern.

Required UI Automation Events

The following table lists the UI Automation events required to be supported by all tab item controls. For more information about events, see UI Automation Events Overview.

UI Automation Event Support Notes

BoundingRectangleProperty property-changed event.

Required

None

IsOffscreenProperty property-changed event.

Required

None

IsEnabledProperty property-changed event.

Required

None

AutomationFocusChangedEvent

Required

None

ElementSelectedEvent

Required

None

ElementRemovedFromSelectionEvent

Required

None

StructureChangedEvent

Required

None

See Also

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