ValuePattern.IsReadOnlyProperty Bidang

Definisi

Ruang nama:

System.Windows.Automation

Rakitan:

UIAutomationClient.dll

IsReadOnly Mengidentifikasi properti .

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

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

 staticval mutable IsReadOnlyProperty : System.Windows.Automation.AutomationProperty

Public Shared ReadOnly IsReadOnlyProperty As AutomationProperty 

Nilai Bidang

AutomationProperty

Contoh

Dalam contoh berikut, elemen akar diteruskan ke fungsi yang mengembalikan kumpulan elemen otomatisasi UI yang merupakan keturunan dari akar dan memenuhi serangkaian kondisi properti.

///--------------------------------------------------------------------
/// <summary>
/// Finds all automation elements that satisfy 
/// the specified condition(s).
/// </summary>
/// <param name="targetApp">
/// 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 targetApp)
{
    if (targetApp == null)
    {
        throw new ArgumentException("Root element cannot be null.");
    }

    PropertyCondition conditionIsReadOnly =
        new PropertyCondition(
        ValuePattern.IsReadOnlyProperty, false);

    return targetApp.FindAll(
        TreeScope.Descendants, conditionIsReadOnly);
}

'''--------------------------------------------------------------------
''' <summary>
''' Finds all automation elements that satisfy 
''' the specified condition(s).
''' </summary>
''' <param name="targetApp">
''' 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 targetApp As AutomationElement) As AutomationElementCollection
    If targetApp Is Nothing Then
        Throw New ArgumentException("Root element cannot be null.")
    End If

    Dim conditionIsReadOnly As New PropertyCondition( _
    ValuePattern.IsReadOnlyProperty, False)

    Return targetApp.FindAll(TreeScope.Descendants, conditionIsReadOnly)

End Function 'FindAutomationElement

Keterangan

Pengidentifikasi ini digunakan oleh aplikasi klien Automation UI. Penyedia Automation UI harus menggunakan bidang yang setara di ValuePatternIdentifiers.

Kontrol harus mengatur ke dan diatur ke false sebelum klien mencoba panggilan ke SetValue.IsReadOnlyPropertytrueIsEnabledProperty

Lihat juga

• Contoh Teks Sisipkan TextPattern