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 End-User Documentation

DockLayoutManager.DockItemDragging Event

Fires repeatedly while a dock panel is being dragged.

Namespace:DevExpress.Xpf.Docking
Assembly:DevExpress.Xpf.Docking.v17.1.dll

Expanded Syntax

Expanded Event Data

The event handler receives an argument of type DockItemDraggingEventArgs containing data related to this event.

The following DockItemDraggingEventArgs properties provide information specific to this event.
Property Description
Cancel Gets or sets whether the current operation must be canceled.
Handled Gets or sets a value that indicates the present state of the event handling for a routed event as it travels the route.
Item Gets the currently processed item.
OriginalSource Gets the original reporting source as determined by pure hit testing, before any possible System.Windows.RoutedEventArgs.Source adjustment by a parent class.
RoutedEvent Gets or sets the System.Windows.RoutedEventArgs.RoutedEvent associated with this System.Windows.RoutedEventArgs instance.
ScreenPoint Gets or sets the current point at which the item is being dragged.
Source Gets or sets a reference to the object that raised the event.

Expanded Remarks

Handle the DockItemDragging event to perform actions while a dock panel is being dragged.

The event's Item parameter always refers to a float group.

When a panel is docked and an end-user starts dragging it, a float group is immediately created containing the dock panel. So, the dock panel is immediately made floating. The DockItemDragging event will fire with the Item parameter referring to the created float group. To access dock panels nested within the float group, use the float group's LayoutGroup.Items collection.

The current drag operation can be canceled by setting the Cancel event parameter to true.

Expanded See Also

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