SelectionItemPattern.Pattern Campo

Definizione

Spazio dei nomi:

System.Windows.Automation

Assembly:

UIAutomationClient.dll

Identifica il pattern di controllo SelectionItemPattern.

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 

Valore del campo

AutomationPattern

Esempio

Nell'esempio seguente viene ottenuto un SelectionItemPattern modello di controllo da un AutomationElementoggetto .

///--------------------------------------------------------------------
/// <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

Commenti

Questo identificatore viene usato dalle applicazioni client Automazione interfaccia utente. Automazione interfaccia utente provider devono usare il campo equivalente in SelectionItemPatternIdentifiers.

L'identificatore del modello viene passato ai metodi, GetCurrentPattern ad esempio per recuperare il modello di controllo di interesse dall'oggetto specificato AutomationElement.