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DragDrop.DragLeave Attached Event

Occurs when an object is dragged out of the bounds of an element that is acting as a drop target without being dropped.

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

See AddDragLeaveHandler, RemoveDragLeaveHandler
<object DragDrop.DragLeave="DragEventHandler" .../>

This event is raised once each time an object is dragged out of the bounds of an element that is acting as a drop target without being dropped. This event is not raised if the element’s AllowDrop property is false.

You typically handle this event to undo any changes that you made in the DragEnter event handler.

Routed Event Information

Identifier field

DragLeaveEvent

Routing strategy

Bubbling

Delegate

DragEventHandler

The corresponding tunneling event is PreviewDragLeave.

The following example shows the DragLeave event handler for an Ellipse element. This code undoes the preview performed in the DragEnter event handler by applying the saved Brush to the ellipse.

private void ellipse_DragLeave(object sender, DragEventArgs e)
{
    Ellipse ellipse = sender as Ellipse;
    if (ellipse != null)
    {
        ellipse.Fill = _previousFill;
    }
}

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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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