AutomationInteropProvider.RaiseAutomationPropertyChangedEvent 方法

定义

命名空间:

System.Windows.Automation.Provider

程序集:

UIAutomationProvider.dll

当 UI 自动化属性更改时引发事件。

public:
 static void RaiseAutomationPropertyChangedEvent(System::Windows::Automation::Provider::IRawElementProviderSimple ^ element, System::Windows::Automation::AutomationPropertyChangedEventArgs ^ e);

public static void RaiseAutomationPropertyChangedEvent (System.Windows.Automation.Provider.IRawElementProviderSimple element, System.Windows.Automation.AutomationPropertyChangedEventArgs e);

static member RaiseAutomationPropertyChangedEvent : System.Windows.Automation.Provider.IRawElementProviderSimple * System.Windows.Automation.AutomationPropertyChangedEventArgs -> unit

Public Shared Sub RaiseAutomationPropertyChangedEvent (element As IRawElementProviderSimple, e As AutomationPropertyChangedEventArgs)

参数

element

IRawElementProviderSimple

与该事件关联的元素。

e

AutomationPropertyChangedEventArgs

有关事件的信息。

示例

/// <summary>
/// Raises an event when the IsEnabled property on a control is changed.
/// </summary>
/// <param name="provider">The UI Automation provider for the control.</param>
/// <param name="newValue">The current enabled state.</param>
private void RaiseEnabledEvent(IRawElementProviderSimple provider, bool newValue)
{
    if (AutomationInteropProvider.ClientsAreListening)
    {
        AutomationPropertyChangedEventArgs args =
            new AutomationPropertyChangedEventArgs(AutomationElement.IsEnabledProperty,
                !newValue, newValue);
        AutomationInteropProvider.RaiseAutomationPropertyChangedEvent(provider, args);
    }
}

''' <summary>
''' Raises an event when the IsEnabled property on a control is changed.
''' </summary>
''' <param name="provider">The UI Automation provider for the control.</param>
''' <param name="newValue">The current enabled state.</param>
Private Sub RaiseEnabledEvent(ByVal provider As IRawElementProviderSimple, ByVal newValue As Boolean) 
    If AutomationInteropProvider.ClientsAreListening Then
        Dim args As New AutomationPropertyChangedEventArgs(AutomationElement.IsEnabledProperty, Not newValue, newValue)
        AutomationInteropProvider.RaiseAutomationPropertyChangedEvent(provider, args)
    End If

End Sub

另请参阅

• 从 UI 自动化提供程序中引发事件
• UI 自动化事件概述