PropertyCondition Konstruktoren

public:
 PropertyCondition(System::Windows::Automation::AutomationProperty ^ property, System::Object ^ value);

public PropertyCondition(System.Windows.Automation.AutomationProperty property, object value);

new System.Windows.Automation.PropertyCondition : System.Windows.Automation.AutomationProperty * obj -> System.Windows.Automation.PropertyCondition

Public Sub New (property As AutomationProperty, value As Object)

Parameter

Beispiele

Im folgenden Beispiel gibt ein PropertyCondition an, dass das gefundene Benutzeroberflächenautomatisierung Element einen Steuerelementtyp von List aufweist. Anschließend PropertyCondition wird das Listenelement aus einem Kombinationsfeld abgerufen.

Condition propCondition1 = new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.List);
AutomationElement listElement = elementCombo.FindFirst(TreeScope.Children, propCondition1);

Dim propCondition1 As New PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.List)
Dim listElement As AutomationElement = elementCombo.FindFirst(TreeScope.Children, propCondition1)

Hinweise

Der property Parameter darf nicht sein BoundingRectangleProperty.

public:
 PropertyCondition(System::Windows::Automation::AutomationProperty ^ property, System::Object ^ value, System::Windows::Automation::PropertyConditionFlags flags);

public PropertyCondition(System.Windows.Automation.AutomationProperty property, object value, System.Windows.Automation.PropertyConditionFlags flags);

new System.Windows.Automation.PropertyCondition : System.Windows.Automation.AutomationProperty * obj * System.Windows.Automation.PropertyConditionFlags -> System.Windows.Automation.PropertyCondition

Public Sub New (property As AutomationProperty, value As Object, flags As PropertyConditionFlags)

Parameter

Beispiele

Im folgenden Beispiel wird ein PropertyCondition verwendet, um das Microsoft Benutzeroberflächenautomatisierung Element abzurufen, das die Hauptform einer Anwendung darstellt. Das Formular befindet sich bei der Suche nach dem Zeichenfolgenbezeichner, bei dem die Groß-/Kleinschreibung nicht beachtet wird.

/// <summary>
/// Find a UI Automation child element by ID.
/// </summary>
/// <param name="controlName">Name of the control, such as "button1"</param>
/// <param name="parentElement">Parent element, such as an application window, or the 
/// AutomationElement.RootElement when searching for the application window.</param>
/// <returns>The UI Automation element.</returns>
private AutomationElement FindChildElement(String controlName, AutomationElement rootElement)
{
    if ((controlName == "") || (rootElement == null))
    {
        throw new ArgumentException("Argument cannot be null or empty.");
    }
    // Set a property condition that will be used to find the main form of the
    // target application. In the case of a WinForms control, the name of the control
    // is also the AutomationId of the element representing the control.
    Condition propCondition = new PropertyCondition(
        AutomationElement.AutomationIdProperty, controlName, PropertyConditionFlags.IgnoreCase);

    // Find the element.
    return rootElement.FindFirst(TreeScope.Element | TreeScope.Children, propCondition);
}

''' <summary>
''' Find a UI Automation child element by ID.
''' </summary>
''' <param name="controlName">Name of the control, such as "button1"</param>
''' <param name="rootElement">Parent element, such as an application window, or the 
''' AutomationElement.RootElement when searching for the application window.</param>
''' <returns>The UI Automation element.</returns>
Private Function FindChildElement(ByVal controlName As String, ByVal rootElement As AutomationElement) _
    As AutomationElement
    If controlName = "" OrElse rootElement Is Nothing Then
        Throw New ArgumentException("Argument cannot be null or empty.")
    End If
    ' Set a property condition that will be used to find the main form of the
    ' target application. In the case of a WinForms control, the name of the control
    ' is also the AutomationId of the element representing the control.
    Dim propCondition As New PropertyCondition(AutomationElement.AutomationIdProperty, _
        controlName, PropertyConditionFlags.IgnoreCase)

    ' Find the element.
    Return rootElement.FindFirst(TreeScope.Element Or TreeScope.Children, propCondition)

End Function 'FindChildElement

Weitere Informationen

• UI-Automatisierungseigenschaften für Clients
• Obtaining Benutzeroberflächenautomatisierung Elements