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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, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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