語言

ToolTipService.ToolTipClosingEvent 欄位

定義

命名空間:
System.Windows.Controls
組件:
PresentationFramework.dll

識別 ToolTipClosing 使用 ToolTipService 該服務顯示工具提示的物件所暴露的事件。

public: static initonly System::Windows::RoutedEvent ^ ToolTipClosingEvent;
public static readonly System.Windows.RoutedEvent ToolTipClosingEvent;
 staticval mutable ToolTipClosingEvent : System.Windows.RoutedEvent
Public Shared ReadOnly ToolTipClosingEvent As RoutedEvent

欄位值

RoutedEvent

範例

以下範例說明如何設定事件處理程序。ToolTipClosing 在這種情況下，事件處理程序實際上是 ， FrameworkElement.ToolTipClosing因為 Ellipse 處理程序所附加的 是 的 FrameworkElement導出類別。

ellipse2.AddHandler(ToolTipService.ToolTipOpeningEvent,
    new RoutedEventHandler(whenToolTipOpens));
ellipse2.AddHandler(ToolTipService.ToolTipClosingEvent,
    new RoutedEventHandler(whenToolTipCloses));

ellipse2.AddHandler(ToolTipService.ToolTipOpeningEvent, New RoutedEventHandler(AddressOf whenToolTipOpens))
ellipse2.AddHandler(ToolTipService.ToolTipClosingEvent, New RoutedEventHandler(AddressOf whenToolTipCloses))


void whenToolTipOpens(object sender, RoutedEventArgs e)
{
    Ellipse ell = new Ellipse();
    if (sender.GetType().FullName.Equals("System.Windows.Shapes.Ellipse"))
    {
        ell = (Ellipse)sender;
        ell.Fill = Brushes.Blue;
    }
    else if (sender.GetType().FullName.Equals(
                             "System.Windows.Controls.ToolTip"))
    {
        ToolTip t = (ToolTip)sender;
        Popup p = (Popup)t.Parent;
        ell = (Ellipse)p.PlacementTarget;
        ell.Fill = Brushes.Blue;
    }
}

void whenToolTipCloses(object sender, RoutedEventArgs e)
{
    Ellipse ell = new Ellipse();
    if (sender.GetType().FullName.Equals(
                      "System.Windows.Shapes.Ellipse"))
    {
        ell = (Ellipse)sender;
        ell.Fill = Brushes.Gray;
    }
    else if (sender.GetType().FullName.Equals(
                           "System.Windows.Controls.ToolTip"))
    {
        ToolTip t = (ToolTip)sender;
        Popup p = (Popup)t.Parent;
        ell = (Ellipse)p.PlacementTarget;
        ell.Fill = Brushes.Gray;
    }
}


Private Sub whenToolTipOpens(ByVal sender As Object, ByVal e As RoutedEventArgs)
    Dim ell As New Ellipse()
    If sender.GetType().FullName.Equals("System.Windows.Shapes.Ellipse") Then
        ell = CType(sender, Ellipse)
        ell.Fill = Brushes.Blue
    ElseIf sender.GetType().FullName.Equals("System.Windows.Controls.ToolTip") Then
        Dim t As ToolTip = CType(sender, ToolTip)
        Dim p As Popup = CType(t.Parent, Popup)
        ell = CType(p.PlacementTarget, Ellipse)
        ell.Fill = Brushes.Blue
    End If
End Sub

Private Sub whenToolTipCloses(ByVal sender As Object, ByVal e As RoutedEventArgs)
    Dim ell As New Ellipse()
    If sender.GetType().FullName.Equals("System.Windows.Shapes.Ellipse") Then
        ell = CType(sender, Ellipse)
        ell.Fill = Brushes.Gray
    ElseIf sender.GetType().FullName.Equals("System.Windows.Controls.ToolTip") Then
        Dim t As ToolTip = CType(sender, ToolTip)
        Dim p As Popup = CType(t.Parent, Popup)
        ell = CType(p.PlacementTarget, Ellipse)
        ell.Fill = Brushes.Gray
    End If
End Sub

備註

事件 ToolTipClosing 發生在提示關閉前。

此欄位會記錄使用此服務的類別的 ToolTipClosingEvent 事件行為。 FrameworkElement與FrameworkContentElement類別同時實作 並ToolTipService透過共通語言執行時（CLR）存取器FrameworkElement.ToolTipClosing及 FrameworkContentElement.ToolTipClosing。

如果你將工具提示指定為 ToolTip 物件，當工具提示關閉時，事件 Closed 也會被觸發。

適用於

另請參閱