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.NET Framework Class Library
UIElementPreviewQueryContinueDrag Event

Occurs when there is a change in the keyboard or mouse button state during a drag-and-drop operation.

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
Syntax
Public Event PreviewQueryContinueDrag As [%$TOPIC/ms596770_en-us_VS_110_1_0_0_0_0%]
public event [%$TOPIC/ms596770_en-us_VS_110_1_0_1_0_0%] PreviewQueryContinueDrag
public:
 event [%$TOPIC/ms596770_en-us_VS_110_1_0_2_0_0%]^ PreviewQueryContinueDrag {
	void add ([%$TOPIC/ms596770_en-us_VS_110_1_0_2_0_1%]^ value);
	void remove ([%$TOPIC/ms596770_en-us_VS_110_1_0_2_0_2%]^ value);
}
member PreviewQueryContinueDrag : IEvent<[%$TOPIC/ms596770_en-us_VS_110_1_0_3_0_0%],
    [%$TOPIC/ms596770_en-us_VS_110_1_0_3_0_1%]>
JScript does not support events.
<object PreviewQueryContinueDrag="[%$TOPIC/ms596770_en-us_VS_110_1_0_5_0_0%]" .../>
Routed Event Information

Identifier field

PreviewQueryContinueDragEvent

Routing strategy

Tunneling

Delegate

QueryContinueDragEventHandler

Remarks

The PreviewQueryContinueDrag event enables the drag source to declare whether the drag-and-drop operation should be canceled.

This event creates an alias for the DragDropPreviewQueryContinueDrag attached event for this class, so that PreviewQueryContinueDrag is part of the class members list when UIElement is inherited as a base element. Event handlers that are attached to the PreviewQueryContinueDrag event are attached to the underlying DragDropPreviewQueryContinueDrag attached event and receive the same event data instance.

Version Information

.NET Framework

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

.NET Framework Client Profile

Supported in: 4, 3.5 SP1