AccessibleObject.Role Property

 

Gets the role of this accessible object.

Namespace:   System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

abstract Role : AccessibleRole with get
override Role : AccessibleRole with get

Property Value

Type: System.Windows.Forms.AccessibleRole

One of the AccessibleRole values, or AccessibleRole.None if no role has been specified.

The role of the object helps describe the function of the object.

Notes to Inheritors:

All objects should support this property.

The following example demonstrates the creation of an accessibility-aware chart control, using the AccessibleObject and Control.ControlAccessibleObject classes to expose accessible information. The control plots two curves along with a legend. The ChartControlAccessibleObject class, which derives from ControlAccessibleObject, is used in the CreateAccessibilityInstance method to provide custom accessible information for the chart control. Since the chart legend is not an actual Control -based control, but instead is drawn by the chart control, it does not have any built-in accessible information. Because of this, the ChartControlAccessibleObject class overrides the GetChild method to return the CurveLegendAccessibleObject that represents accessible information for each part of the legend. When an accessible-aware application uses this control, the control can provide the necessary accessible information.

This code excerpt demonstrates overriding the Role property. See the AccessibleObject class overview for the complete code example.

No code example is currently available or this language may not be supported.

.NET Framework
Available since 1.1
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