AutomationProperty クラス

定義

AutomationElement のプロパティを識別します。Identifies a property of an AutomationElement.

public ref class AutomationProperty : System::Windows::Automation::AutomationIdentifier
public class AutomationProperty : System.Windows.Automation.AutomationIdentifier
type AutomationProperty = class
    inherit AutomationIdentifier
Public Class AutomationProperty
Inherits AutomationIdentifier
継承
AutomationProperty

次の例では、プロパティ変更イベントハンドラーを追加します。ハンドラー Propertyは、イベント引数のメンバーをチェックして、変更されたプロパティを確認します。The following example adds a property-changed event handler, and the handler checks the Property member of the event arguments to determine the property that has been changed.


AutomationPropertyChangedEventHandler propChangeHandler;
/// <summary>
/// Adds a handler for property-changed event; in particular, a change in the enabled state.
/// </summary>
/// <param name="element">The UI Automation element whose state is being monitored.</param>
public void SubscribePropertyChange(AutomationElement element)
{
    Automation.AddAutomationPropertyChangedEventHandler(element, 
        TreeScope.Element, 
        propChangeHandler = new AutomationPropertyChangedEventHandler(OnPropertyChange),
        AutomationElement.IsEnabledProperty);

}

/// <summary>
/// Handler for property changes.
/// </summary>
/// <param name="src">The source whose properties changed.</param>
/// <param name="e">Event arguments.</param>
private void OnPropertyChange(object src, AutomationPropertyChangedEventArgs e)
{
    AutomationElement sourceElement = src as AutomationElement;
    if (e.Property == AutomationElement.IsEnabledProperty)
    {
        bool enabled = (bool)e.NewValue;
        // TODO: Do something with the new value. 
        // The element that raised the event can be identified by its runtime ID property.
    }
    else
    { 
        // TODO: Handle other property-changed events.
    }
}

public void UnsubscribePropertyChange(AutomationElement element)
{
    if (propChangeHandler != null)
    {
        Automation.RemoveAutomationPropertyChangedEventHandler(element, propChangeHandler);
    }
}

Dim propChangeHandler As AutomationPropertyChangedEventHandler

''' <summary>
''' Adds a handler for property-changed event; in particular, a change in the enabled state.
''' </summary>
''' <param name="element">The UI Automation element whose state is being monitored.</param>
Public Sub SubscribePropertyChange(ByVal element As AutomationElement)
    propChangeHandler = _
        New AutomationPropertyChangedEventHandler(AddressOf OnPropertyChange)
    Automation.AddAutomationPropertyChangedEventHandler(element, TreeScope.Element, _
        propChangeHandler, AutomationElement.IsEnabledProperty)

End Sub



''' <summary>
''' Handler for property changes.
''' </summary>
''' <param name="src">The source whose properties changed.</param>
''' <param name="e">Event arguments.</param>
Private Sub OnPropertyChange(ByVal src As Object, ByVal e As AutomationPropertyChangedEventArgs) 
    Dim sourceElement As AutomationElement = DirectCast(src, AutomationElement)
    If e.Property Is AutomationElement.IsEnabledProperty Then
        Dim enabled As Boolean = CBool(e.NewValue)
        ' TODO: Do something with the new value. 
        ' The element that raised the event can be identified by its runtime ID property.
    Else
    End If
 ' TODO: Handle other property-changed events.
End Sub


Public Sub UnsubscribePropertyChange(ByVal element As AutomationElement)
    If (propChangeHandler IsNot Nothing) Then
        Automation.RemoveAutomationPropertyChangedEventHandler(element, propChangeHandler)
    End If

End Sub

注釈

このクラスは、プロパティの値ではなく、プロパティを識別します。This class identifies properties, not the values of properties. この型の静的オブジェクトは、およびコントロールパターンAutomationElementクラスのフィールドとして検出されます。Static objects of this type are found as fields of AutomationElement and control pattern classes.

プロパティ

Id

基になる数値識別子を取得します。Gets the underlying numerical identifier.

(継承元 AutomationIdentifier)
ProgrammaticName

登録されたプログラム名を取得します。Gets the registered programmatic name.

(継承元 AutomationIdentifier)

メソッド

CompareTo(Object)

この AutomationIdentifier と別の AutomationIdentifier を比較します。Compares this AutomationIdentifier with another AutomationIdentifier.

(継承元 AutomationIdentifier)
Equals(Object)

指定した AutomationIdentifier が、この AutomationIdentifier と等しいかどうかを示す値を返します。Returns a value indicating whether the supplied AutomationIdentifier is equivalent to this AutomationIdentifier.

(継承元 AutomationIdentifier)
GetHashCode()

この UI オートメーションUI Automation識別子のハッシュ コードを返します。Returns the hash code for this UI オートメーションUI Automation identifier.

(継承元 AutomationIdentifier)
GetType()

現在のインスタンスの Type を取得します。Gets the Type of the current instance.

(継承元 Object)
LookupById(Int32)

指定した数値識別子をカプセル化する AutomationProperty を取得します。Retrieves an AutomationProperty that encapsulates a specified numerical identifier.

MemberwiseClone()

現在の Object の簡易コピーを作成します。Creates a shallow copy of the current Object.

(継承元 Object)
ToString()

現在のオブジェクトを表す string を返します。Returns a string that represents the current object.

(継承元 Object)

適用対象

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