Was this page helpful?
Your feedback about this content is important. Let us know what you think.
Additional feedback?
1500 characters remaining
Opened Event
Collapse the table of content
Expand the table of content

ToolTip.Opened Event

Occurs when a ToolTip becomes visible.

Namespace:  System.Windows.Controls
Assembly:  PresentationFramework (in PresentationFramework.dll)
XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation

public event RoutedEventHandler Opened
<object Opened="RoutedEventHandler" .../>

Identifier field

OpenedEvent

Routing strategy

Bubbling

Delegate

RoutedEventHandler

The FrameworkElement.ToolTipOpening event is also raised when the ToolTip control opens.

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);

        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;
            }
        }

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
Show:
© 2015 Microsoft