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UIElementPreviewMouseDown Event
 

Occurs when any mouse button is pressed while the pointer is over this element.

Namespace:   System.Windows
Assembly:  PresentationCore (in PresentationCore.dll)

public event MouseButtonEventHandler PreviewMouseDown
public:
event MouseButtonEventHandler^ PreviewMouseDown {
	void add(MouseButtonEventHandler^ value);
	void remove(MouseButtonEventHandler^ value);
}
member PreviewMouseDown : IEvent<MouseButtonEventHandler,
    MouseButtonEventArgs>
Public Event PreviewMouseDown As MouseButtonEventHandler

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

The PreviewMouseDown event is often raised together with either PreviewMouseLeftButtonDown or PreviewMouseRightButtonDown, which correspond to a press of one of the two standard mouse buttons. PreviewMouseLeftButtonDown and PreviewMouseRightButtonDown are also routed events, but they are direct routed events, and the appropriate button-specific event is raised when the MousePreviewMouseDown event reaches this element along the event route. See Remarks for PreviewMouseLeftButtonDown or PreviewMouseRightButtonDown.

Identifier field

PreviewMouseDownEvent

Routing strategy

Tunneling

Delegate

MouseButtonEventHandler

.NET Framework
Available since 3.0
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