wpf-devexpress-dot-xpf-dot-diagram-dot-diagramcontrol-381cb105.md
Fires each time an item’s bounds are changed.
Namespace : DevExpress.Xpf.Diagram
Assembly : DevExpress.Xpf.Diagram.v25.2.dll
NuGet Package : DevExpress.Wpf.Diagram
public event EventHandler<DiagramItemBoundsChangedEventArgs> ItemBoundsChanged
Public Event ItemBoundsChanged As EventHandler(Of DiagramItemBoundsChangedEventArgs)
The ItemBoundsChanged event's data class is DiagramItemBoundsChangedEventArgs. The following properties provide information specific to this event:
| Property | Description |
|---|---|
| Handled | Gets or sets a value that indicates the present state of the event handling for a routed event as it travels the route. Inherited from RoutedEventArgs. |
| Item | Returns the item whose bounds are changed. |
| NewAngle | Returns the new angle at which the item is rotated. |
| NewIndex | Gets the new item’s index within the Items collection of its parent. |
| NewParent | Returns the item’s new parent. |
| NewPosition | Returns the new coordinates of the item’s upper left corner. |
| NewSize | Gets the new size of the item. |
| OldAngle | Returns the angle at which the item was previously rotated. |
| OldIndex | Gets the previous item’s index within the Items collection of its parent. |
| OldParent | Returns the item’s previous parent. |
| OldPosition | Returns the previous coordinates of the item’s upper left corner. |
| OldSize | Gets the previous size of the item. |
| OriginalSource | Gets the original reporting source as determined by pure hit testing, before any possible Source adjustment by a parent class. Inherited from RoutedEventArgs. |
| RoutedEvent | Gets or sets the RoutedEvent associated with this RoutedEventArgs instance. Inherited from RoutedEventArgs. |
| Source | Gets or sets a reference to the object that raised the event. Inherited from RoutedEventArgs. |
The event data class exposes the following methods:
| Method | Description |
|---|---|
| InvokeEventHandler(Delegate, Object) | When overridden in a derived class, provides a way to invoke event handlers in a type-specific way, which can increase efficiency over the base implementation. Inherited from RoutedEventArgs. |
| OnSetSource(Object) | When overridden in a derived class, provides a notification callback entry point whenever the value of the Source property of an instance changes. Inherited from RoutedEventArgs. |
The Item event’s parameter returns the item whose bounds are changed.
The following code snippet (auto-collected from DevExpress Examples) contains a reference to the ItemBoundsChanged event.
Note
The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.
Private Sub AttachToDiagram()
AddHandler Diagram.ItemBoundsChanged, AddressOf OnDiagramItemBoundsChanged
AddHandler Diagram.ItemsResizing, AddressOf OnDiagramItemsResizing
See Also