ToolTip.Opened Event
Definition
Important
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Occurs when a ToolTip becomes visible.
public:
event System::Windows::RoutedEventHandler ^ Opened;
public event System.Windows.RoutedEventHandler Opened;
member this.Opened : System.Windows.RoutedEventHandler
Public Custom Event Opened As RoutedEventHandler
Event Type
Examples
The following example shows how to set an event handler for the Opened and Closed events.
tooltip.Opened +=
new RoutedEventHandler(whenToolTipOpens);
tooltip.Closed +=
new RoutedEventHandler(whenToolTipCloses);
AddHandler tooltip.Opened, AddressOf whenToolTipOpens
AddHandler tooltip.Closed, 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
Remarks
The FrameworkElement.ToolTipOpening event is also raised when the ToolTip control opens.
Routed Event Information
Identifier field | OpenedEvent |
Routing strategy | Bubbling |
Delegate | RoutedEventHandler |
Applies to
See also
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