SelectionItemPattern.Pattern Field

Reference

Definition

Namespace:: System.Windows.Automation

Assembly:: UIAutomationClient.dll

Important

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Identifies the SelectionItemPattern control pattern.

public: static initonly System::Windows::Automation::AutomationPattern ^ Pattern;

public static readonly System.Windows.Automation.AutomationPattern Pattern;

 staticval mutable Pattern : System.Windows.Automation.AutomationPattern

Public Shared ReadOnly Pattern As AutomationPattern

Field Value

AutomationPattern

Examples

In the following example, a SelectionItemPattern control pattern is obtained from an AutomationElement.

///--------------------------------------------------------------------
/// <summary>
/// Obtains a SelectionItemPattern control pattern from an 
/// automation element.
/// </summary>
/// <param name="targetControl">
/// The automation element of interest.
/// </param>
/// <returns>
/// A SelectionItemPattern object.
/// </returns>
///--------------------------------------------------------------------
private SelectionItemPattern GetSelectionItemPattern(
    AutomationElement targetControl)
{
    SelectionItemPattern selectionItemPattern = null;

    try
    {
        selectionItemPattern =
            targetControl.GetCurrentPattern(
            SelectionItemPattern.Pattern)
            as SelectionItemPattern;
    }
    // Object doesn't support the 
    // SelectionItemPattern control pattern
    catch (InvalidOperationException)
    {
        return null;
    }

    return selectionItemPattern;
}

'''--------------------------------------------------------------------
''' <summary>
''' Obtains a SelectionItemPattern control pattern from an 
''' automation element.
''' </summary>
''' <param name="targetControl">
''' The automation element of interest.
''' </param>
''' <returns>
''' A SelectionItemPattern object.
''' </returns>
'''--------------------------------------------------------------------
Private Function GetSelectionItemPattern( _
ByVal targetControl As AutomationElement) As SelectionItemPattern
    Dim selectionItemPattern As SelectionItemPattern = Nothing

    Try
        selectionItemPattern = DirectCast( _
        targetControl.GetCurrentPattern(selectionItemPattern.Pattern), _
        SelectionItemPattern)
    Catch
        ' Object doesn't support the SelectionItemPattern control pattern
        Return Nothing
    End Try

    Return selectionItemPattern
End Function 'GetSelectionItemPattern

Remarks

This identifier is used by UI Automation client applications. UI Automation providers should use the equivalent field in SelectionItemPatternIdentifiers.

The pattern identifier is passed to methods such as GetCurrentPattern to retrieve the control pattern of interest from the specified AutomationElement.

Applies to

Partilhar via