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ExpandCollapsePattern.ExpandCollapseStateProperty Bidang

Definisi

ExpandCollapseState Mengidentifikasi properti .

public: static initonly System::Windows::Automation::AutomationProperty ^ ExpandCollapseStateProperty;
public static readonly System.Windows.Automation.AutomationProperty ExpandCollapseStateProperty;
 staticval mutable ExpandCollapseStateProperty : System.Windows.Automation.AutomationProperty
Public Shared ReadOnly ExpandCollapseStateProperty As AutomationProperty 

Nilai Bidang

Contoh

Dalam contoh berikut, elemen akar diteruskan ke fungsi yang mengembalikan kumpulan elemen Automation 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 conditionLeafNode =
        new PropertyCondition(
        ExpandCollapsePattern.ExpandCollapseStateProperty, 
        ExpandCollapseState.LeafNode);

    return targetApp.FindAll(
        TreeScope.Descendants, conditionLeafNode);
}
'''--------------------------------------------------------------------
''' <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 conditionLeafNode As New PropertyCondition( _
    ExpandCollapsePattern.ExpandCollapseStateProperty, _
    ExpandCollapseState.LeafNode)

    Return targetApp.FindAll(TreeScope.Descendants, conditionLeafNode)

End Function 'FindAutomationElement

Keterangan

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

ExpandCollapseState mengacu pada visibilitas objek anak langsung saja; itu tidak mengacu pada visibilitas semua objek turunan.

Nilai defaultnya adalah Expanded.

Berlaku untuk

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