SelectionPattern.IsSelectionRequiredProperty Alan

public: static initonly System::Windows::Automation::AutomationProperty ^ IsSelectionRequiredProperty;

public static readonly System.Windows.Automation.AutomationProperty IsSelectionRequiredProperty;

 staticval mutable IsSelectionRequiredProperty : System.Windows.Automation.AutomationProperty

Public Shared ReadOnly IsSelectionRequiredProperty As AutomationProperty 

Alan Değeri

Örnekler

Aşağıdaki örnekte kök öğesi, kökün alt öğeleri olan ve bir dizi özellik koşulunu karşılayan UI Otomasyonu öğeleri koleksiyonu döndüren bir işleve geçirilir.

///--------------------------------------------------------------------
/// <summary>
/// Finds all automation elements that satisfy 
/// the specified condition(s).
/// </summary>
/// <param name="rootElement">
/// The automation element from which to start searching.
/// </param>
/// <returns>
/// A collection of automation elements satisfying 
/// the specified condition(s).
/// </returns>
///--------------------------------------------------------------------
private AutomationElementCollection FindAutomationElement(
    AutomationElement rootElement)
{
    if (rootElement == null)
    {
        throw new ArgumentException("Root element cannot be null.");
    }

    PropertyCondition conditionCanSelectMultiple =
        new PropertyCondition(
        SelectionPattern.CanSelectMultipleProperty, true);

    PropertyCondition conditionIsSelectionRequired =
        new PropertyCondition(
        SelectionPattern.IsSelectionRequiredProperty, false);

    // Use any combination of the preceding condtions to 
    // find the control(s) of interest
    Condition condition = new AndCondition(
        conditionCanSelectMultiple,
        conditionIsSelectionRequired);

    return rootElement.FindAll(TreeScope.Descendants, condition);
}

'''--------------------------------------------------------------------
''' <summary>
''' Finds all automation elements that satisfy 
''' the specified condition(s).
''' </summary>
''' <param name="rootElement">
''' The automation element from which to start searching.
''' </param>
''' <returns>
''' A collection of automation elements satisfying 
''' the specified condition(s).
''' </returns>
'''--------------------------------------------------------------------
Private Function FindAutomationElement( _
ByVal rootElement As AutomationElement) As AutomationElementCollection
    If rootElement Is Nothing Then
        Throw New ArgumentException("Root element cannot be null.")
    End If

    Dim conditionCanSelectMultiple As New PropertyCondition( _
    SelectionPattern.CanSelectMultipleProperty, True)

    Dim conditionIsSelectionRequired As New PropertyCondition( _
    SelectionPattern.IsSelectionRequiredProperty, False)

    ' Use any combination of the preceding condtions to 
    ' find the control(s) of interest
    Dim condition As New AndCondition( _
    conditionCanSelectMultiple, conditionIsSelectionRequired)

    Return rootElement.FindAll(TreeScope.Descendants, condition)
End Function 'FindAutomationElement

Açıklamalar

Bu tanımlayıcı, UI Otomasyonu istemci uygulamaları tarafından kullanılır. UI Otomasyonu sağlayıcıları içindeki SelectionPatternIdentifierseşdeğer alanı kullanmalıdır.

Şunlara uygulanır