Windows Dev Center

Information
The topic you requested is included in another documentation set. For convenience, it's displayed below. Choose Switch to see the topic in its original location.

Slider Control Type

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

A slider control is a composite control with buttons that enable a user to set a numerical range or select from a set of items.

The following sections define the required UI Automation tree structure, properties, control patterns, and events for the Slider control type. The UI Automation requirements apply to all slider 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 slider 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
  • Slider
    • Button (2 or 4)
    • Thumb (1)
    • List Item (0 or more)
  • Slider
    • List Item (0 or more)

 

Relevant Properties

The following table lists the UI Automation properties whose value or definition is especially relevant to slider controls. 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 majority of slider controls must return the UIA_E_NOCLICKABLEPOINT error because the entire bounding rectangle of the slider control is occupied by child controls.
UIA_ControlTypePropertyIdSliderThis value is the same for all frameworks.
UIA_IsContentElementPropertyIdTRUEThe slider control is always included in the content view of the UI Automation tree.
UIA_IsControlElementPropertyIdTRUEThe slider 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. The children (buttons and thumb) of a slider control should never take the focus. The focus should always remain on the slider control itself.
UIA_LabeledByPropertyIdSee notes.If there is a static text label associated with the control, this property must expose a reference to that control. If the text control is a subcomponent of another control, it will not have a LabeledBy property set.
UIA_LocalizedControlTypePropertyIdSee notes.Localized string corresponding to the Slider control type. The default value is "slider" for en-US or English (United States).
UIA_NamePropertyIdSee notes.The name of the slider control is typically generated from a static text label. If there is not a static text label, a property value for Name must be assigned by the application developer.

 

Required Control Patterns

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

Control Pattern/Pattern PropertySupport/ValueNotes
IRangeValueProvider DependsA slider should support the RangeValue control pattern if the content can be set to a value within a numerical range.
ISelectionProvider DependsA slider should support the Selection control pattern if the content represents one value among a discrete set of options. When the Selection control pattern is supported, the corresponding selection must be exposed as one or more child list items of the slider.
IValueProvider DependsA slider should support the Value control pattern if the content represents one value among a discrete set of options.

 

Required Events

The following table lists the UI Automation events that slider 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_RangeValueValuePropertyId property-changed event.If the control supports the RangeValue control pattern, it must support this event.
UIA_Selection_InvalidatedEventIdIf the control supports the Selection control pattern, it must support this event.
UIA_StructureChangedEventId
UIA_ValueValuePropertyId property-changed event.If the control supports the Value control pattern, it must support this event.

 

Related topics

Conceptual
UI Automation Control Types Overview
UI Automation Overview

 

 

Community Additions

Show:
© 2015 Microsoft