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UI Automation Support for the Pane Control Type

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

The Pane control type is used to represent an object within a frame or document window. Users can navigate between pane controls and within the contents of the current pane, but cannot navigate between items in different panes. Thus, pane controls represent a level of grouping lower than windows or documents, but above individual controls. The user navigates between panes by pressing TAB, F6, or CTRL+TAB, depending on the context.

The following sections define the required UI Automation tree structure, properties, control patterns, and events for the Pane control type. The UI Automation requirements apply to all pane controls, whether Microsoft Windows Presentation Foundation (WPF), Microsoft Win32, or Windows Forms.

This topic contains the following sections.

  • Required UI Automation Tree Structure
  • Required UI Automation Properties
  • Required UI Automation Control Patterns
  • Required UI Automation Events
  • Pane Control Type Example
  • Related Topics

Required UI Automation Tree Structure

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

Control View Content View
  • Pane
  • Pane

Required UI Automation Properties

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

UI Automation Property Value Notes
UIA_AccessKeyPropertyId See notes. If a specific key combination gives focus to the pane, that information should be exposed through this property.
UIA_AutomationIdPropertyId See notes. The value of this property needs to be unique across all controls in an application.
UIA_BoundingRectanglePropertyId See notes. The outermost rectangle that contains the whole control.
UIA_ClickablePointPropertyId See notes. This property exposes a clickable point of the pane control that causes the pane to become focused when it is clicked.
UIA_ControlTypePropertyId Pane This value is the same for all UI frameworks.
UIA_HelpTextPropertyId See notes. The help text for pane controls should explain the purpose of the frame and how it relates to other frames. A description is necessary if the purpose and relationship of the frames is not clear from the value of the UIA_NamePropertyId property.
UIA_IsContentElementPropertyId TRUE The pane control is always included in the content view of the UI Automation tree.
UIA_IsControlElementPropertyId TRUE The pane control is always included in the control view of the UI Automation tree.
UIA_IsKeyboardFocusablePropertyId See notes. If the control can receive keyboard focus, it must support this property.
UIA_LabeledByPropertyId See notes. Pane controls typically do not have a static label. If there is a static text label, it should be exposed through this property.
UIA_LocalizedControlTypePropertyId See notes. Localized string corresponding to the Pane control type. The default value is "pane" for en-US or English (United States).
UIA_NamePropertyId See notes. The value for this property must always be a clear, concise and meaningful title.

Required UI Automation Control Patterns

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

Control Pattern/Pattern Property Support/Value Notes
IDockProvider Depends Implement this control pattern if the pane control can be docked.
IScrollProvider Depends Implement this control pattern if the pane control can be scrolled.
ITransformProvider Depends Implement this control pattern if the pane control can be moved, resized, or rotated on the screen.
IWindowProvider Never If you need to implement this control pattern, your control should be based on the Window control type.

Required UI Automation Events

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

UI Automation Event Notes
UIA_AsyncContentLoadedEventId None
UIA_AutomationFocusChangedEventId None
UIA_BoundingRectanglePropertyId property-changed event. None
UIA_IsOffscreenPropertyId property-changed event. If the control supports the IsOffscreen property, it must support this event.
UIA_ScrollHorizontallyScrollablePropertyId property-changed event. If the control supports the Scroll control pattern, it must support this event.
UIA_ScrollHorizontalScrollPercentPropertyId property-changed event. If the control supports the Scroll control pattern, it must support this event.
UIA_ScrollHorizontalViewSizePropertyId property-changed event. If the control supports the Scroll control pattern, it must support this event.
UIA_ScrollVerticallyScrollablePropertyId property-changed event. If the control supports the Scroll control pattern, it must support this event.
UIA_ScrollVerticalScrollPercentPropertyId property-changed event. If the control supports the Scroll control pattern, it must support this event.
UIA_ScrollVerticalViewSizePropertyId property-changed event. If the control supports the Scroll control pattern, it must support this event.
UIA_StructureChangedEventId None

Pane Control Type Example

The following image illustrates a control that implements the Pane control type.

Example of a Pane Control

UI Automation Tree—Control View UI Automation Tree—Content View
  • Pane
    • Tree (Scroll Pattern)
      • TreeItem
      • ...
    • Pane
      • Edit (Scroll Pattern)
  • Pane
    • Tree (Scroll Pattern)
      • TreeItem
      • ...
    • Pane
      • Edit (Scroll Pattern)