PropertyCondition Konstruktor

Definisi

Ruang nama:

System.Windows.Automation

Rakitan:

UIAutomationClient.dll

Menginisialisasi instans baru kelas PropertyCondition.

Overload

PropertyCondition(AutomationProperty, Object)	Menginisialisasi instans baru kelas PropertyCondition.
PropertyCondition(AutomationProperty, Object, PropertyConditionFlags)	Menginisialisasi instans PropertyCondition baru kelas, dengan bendera.

PropertyCondition(AutomationProperty, Object)

Menginisialisasi instans baru kelas PropertyCondition.

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

property

AutomationProperty

Properti untuk diuji.

value

Object

Nilai untuk menguji properti .

Contoh

Dalam contoh berikut, PropertyCondition menentukan bahwa elemen Automation UI yang akan ditemukan memiliki jenis Listkontrol . PropertyCondition kemudian digunakan untuk mendapatkan elemen daftar dari kotak kombo.

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)

Keterangan

Parameter property tidak boleh BoundingRectangleProperty.

PropertyCondition(AutomationProperty, Object, PropertyConditionFlags)

Menginisialisasi instans PropertyCondition baru kelas, dengan bendera.

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

property

AutomationProperty

Properti untuk diuji.

value

Object

Nilai untuk menguji properti .

flags

PropertyConditionFlags

Bendera yang memengaruhi perbandingan.

Contoh

Contoh berikut menggunakan PropertyCondition untuk mengambil elemen Microsoft UI Automation yang mewakili bentuk utama aplikasi. Formulir ini terletak oleh pencarian yang tidak peka huruf besar/kecil untuk pengidentifikasi stringnya.

/// <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

Lihat juga

• Properti UI Automation untuk Klien
• Mendapatkan Elemen Automasi Antarmuka Pengguna