• Article

AutomationPeer.GetPattern Method

Microsoft Silverlight will reach end of support after October 2021. Learn more.

When overridden in a derived class, gets an object that supports the requested pattern, based on PatternInterface input and the peer's implementation of known patterns.

Namespace:  System.Windows.Automation.Peers
Assembly:  System.Windows (in System.Windows.dll)

Syntax

'Declaration
Public MustOverride Function GetPattern ( _
    patternInterface As PatternInterface _
) As Object

public abstract Object GetPattern(
    PatternInterface patternInterface
)

Parameters

Return Value

Type: System.Object
The object that implements the pattern interface; nulla null reference (Nothing in Visual Basic) if this peer does not support this interface.

Remarks

Notes to Inheritors

The initial implementation is empty. This method does not have a "Core" parallel method, you override GetPattern itself.

You are expected to return existing values from the PatternInterface enumeration, which correspond to pattern definitions in System.Windows.Automation.Provider. In cases where no existing pattern or provider interface matches, use null. Often this also suggests that GetAutomationControlType should return Custom.

Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.