SelectionItemPattern.Pattern Campo

Definición

Espacio de nombres:

System.Windows.Automation

Ensamblado:

UIAutomationClient.dll

Identifica el patrón de control 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 

Valor de campo

AutomationPattern

Ejemplos

En el ejemplo siguiente, se obtiene un SelectionItemPattern patrón de control de .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

Comentarios

Este identificador lo usan Automatización de la interfaz de usuario aplicaciones cliente. Automatización de la interfaz de usuario proveedores deben usar el campo equivalente en SelectionItemPatternIdentifiers.

El identificador de patrón se pasa a métodos como GetCurrentPattern para recuperar el patrón de control de interés del especificado AutomationElement.