wpf-devexpress-dot-xpf-dot-diagram-dot-diagramdesignercontrol-dot-underscore-events.md
The Diagram Designer control.
| Name | Description |
|---|---|
| ActiveToolChanged | Fires each time the ActiveTool property changes the value. Inherited from DiagramControl. |
| AddingNewItem | Fires each time a new item is added to the diagram by the end-user (e.g., dropped from the toolbox, drawn using a tool). Inherited from DiagramControl. |
| BeforeItemsMoving | Fires each time the user attempts to move a diagram item. Inherited from DiagramControl. |
| BeforeItemsResizing | Raises each time the end-user attempts to resize a diagram item. Inherited from DiagramControl. |
| BeforeItemsRotating | Raises each time the end-user attempts to rotate a diagram item. Inherited from DiagramControl. |
| CanvasBoundsChanged | Occurs when the size of the Canvas is changed. Inherited from DiagramControl. |
| ClosedEditor | Fires after the end-user closes the diagram item’s text editor. Inherited from DiagramControl. |
| ConnectionChanged | Occurs after the connection has been changed by a user. Inherited from DiagramControl. |
| ConnectionChanging | Occurs when the connection is about to be changed by the end-user. Inherited from DiagramControl. |
| ContainerIsCollapsedChanged | Occurs when the container’s collapsed state has been changed. Inherited from DiagramControl. |
| ContainerIsCollapsedChanging | Occurs when the container’s collapsed state is being changed. Inherited from DiagramControl. |
| ContextMenuClosing | Occurs just before any context menu on the element is closed. Inherited from FrameworkElement. |
| ContextMenuOpening | Occurs when any context menu on the element is opened. Inherited from FrameworkElement. |
| CustomCursor | Occurs when the mouse cursor enters the diagram control. Inherited from DiagramControl. |
| CustomGetEditableItemProperties | Allows you to modify the list of diagram item properties that can be edited by end-users in the Properties Panel. Inherited from DiagramControl. |
| CustomGetEditableItemPropertiesCacheKey | Allows you to update the set of properties displayed by the property grid. Inherited from DiagramControl. |
| CustomGetSerializableItemProperties | Allows you to modify the list of serializable properties of diagram items. Inherited from DiagramControl. |
| CustomItemDrag | Occurs when an end-user starts dragging a diagram item. Inherited from DiagramControl. |
| CustomItemDragResult | Occurs before a drag and drop operation is completed. Inherited from DiagramControl. |
| CustomItemGiveFeedback | Occurs while diagram items are dragged. Inherited from DiagramControl. |
| CustomItemQueryContinueDrag | Occurs during a drag-and-drop operation. Inherited from DiagramControl. |
| CustomLoadDocument | Fires after an end-user selects a document in the ‘Open File’ dialog or a document is loaded by setting the DiagramControl.DocumentSource property in code. Inherited from DiagramControl. |
| CustomLoadImage | Fires after an end-user selects a file in the ‘Insert Picture’ dialog. Inherited from DiagramControl. |
| CustomSaveDocument | Fires when the diagram is about to be saved (when an end-user uses Save actions in the Diagram’s Ribbon menu, or when the DiagramControl.SaveFile/DiagramControl.SaveFileAs method is called). The event allows you to implement custom saving logic. Inherited from DiagramControl. |
| DataContextChanged | Occurs when the data context for this element changes. Inherited from FrameworkElement. |
| DeletingItems | Fires when the end-user removes items from the diagram canvas. Obsoleted. Use the DiagramControl.ItemsDeleting event instead. Inherited from DiagramControl. |
| DocumentLoaded | Occurs after a document is loaded into the DiagramControl. Inherited from DiagramControl. |
| DragEnter | Occurs when the input system reports an underlying drag event with this element as the drag target. Inherited from UIElement. |
| DragLeave | Occurs when the input system reports an underlying drag event with this element as the drag origin. Inherited from UIElement. |
| DragOver | Occurs when the input system reports an underlying drag event with this element as the potential drop target. Inherited from UIElement. |
| Drop | Occurs when the input system reports an underlying drop event with this element as the drop target. Inherited from UIElement. |
| ExceptionMessage | Allows you to handle exceptions that may raise during various actions on the Diagram Control. Inherited from DiagramControl. |
| FocusableChanged | Occurs when the value of the Focusable property changes. Inherited from UIElement. |
| GiveFeedback | Occurs when the input system reports an underlying drag-and-drop event that involves this element. Inherited from UIElement. |
| GotFocus | Occurs when this element gets logical focus. Inherited from UIElement. |
| GotKeyboardFocus | Occurs when the keyboard is focused on this element. Inherited from UIElement. |
| GotMouseCapture | Occurs when this element captures the mouse. Inherited from UIElement. |
| GotStylusCapture | Occurs when this element captures the stylus. Inherited from UIElement. |
| GotTouchCapture | Occurs when a touch is captured to this element. Inherited from UIElement. |
| Initialized | Occurs when this FrameworkElement is initialized. This event coincides with cases where the value of the IsInitialized property changes from false (or undefined) to true. Inherited from FrameworkElement. |
| IsEnabledChanged | Occurs when the value of the IsEnabled property on this element changes. Inherited from UIElement. |
| IsHitTestVisibleChanged | Occurs when the value of the IsHitTestVisible dependency property changes on this element. Inherited from UIElement. |
| IsKeyboardFocusedChanged | Occurs when the value of the IsKeyboardFocused property changes on this element. Inherited from UIElement. |
| IsKeyboardFocusWithinChanged | Occurs when the value of the IsKeyboardFocusWithin property changes on this element. Inherited from UIElement. |
| IsMouseCapturedChanged | Occurs when the value of the IsMouseCaptured property changes on this element. Inherited from UIElement. |
| IsMouseCaptureWithinChanged | Occurs when the value of the IsMouseCaptureWithinProperty changes on this element. Inherited from UIElement. |
| IsMouseDirectlyOverChanged | Occurs when the value of the IsMouseDirectlyOver property changes on this element. Inherited from UIElement. |
| IsStylusCapturedChanged | Occurs when the value of the IsStylusCaptured property changes on this element. Inherited from UIElement. |
| IsStylusCaptureWithinChanged | Occurs when the value of the IsStylusCaptureWithin property changes on this element. Inherited from UIElement. |
| IsStylusDirectlyOverChanged | Occurs when the value of the IsStylusDirectlyOver property changes on this element. Inherited from UIElement. |
| IsVisibleChanged | Occurs when the value of the IsVisible property changes on this element. Inherited from UIElement. |
| ItemBoundsChanged | Fires each time an item’s bounds are changed. Inherited from DiagramControl. |
| ItemContentChanged | Fires each time the end-user changes the item’s text. Inherited from DiagramControl. |
| ItemCreating | Occurs before a diagram item is added to the canvas. Inherited from DiagramControl. |
| ItemDrawing | Fires repeatedly as the end-user is drawing a shape using a drawing tool (Rectangle, Ellipse, Right Triangle or Hexagon). Inherited from DiagramControl. |
| ItemInitializing | Fires each time an item is created via the DevExpress.Diagram.Core.ItemTool. Inherited from DiagramControl. |
| ItemsChanged | Fires each time an item is added or removed from the diagram. Inherited from DiagramControl. |
| ItemsDeleting | Fires each time diagram items have been removed from the canvas. Inherited from DiagramControl. |
| ItemsMoving | Fires as the end-user is moving diagram items. Inherited from DiagramControl. |
| ItemsPasting | Fires as the end-user pastes the diagram items from the clipboard onto the canvas. Inherited from DiagramControl. |
| ItemsResizing | Fires when a diagram item is resized by the end-user or programmatically. Inherited from DiagramControl. |
| ItemsRotating | Fires when the end-user attempts to rotate a diagram item. Inherited from DiagramControl. |
| KeyDown | Occurs when a key is pressed while focus is on this element. Inherited from UIElement. |
| KeyUp | Occurs when a key is released while focus is on this element. Inherited from UIElement. |
| LayoutUpdated | Occurs when the layout of the various visual elements associated with the current Dispatcher changes. Inherited from UIElement. |
| Loaded | Occurs when the element is laid out, rendered, and ready for interaction. Inherited from FrameworkElement. |
| LostFocus | Occurs when this element loses logical focus. Inherited from UIElement. |
| LostKeyboardFocus | Occurs when the keyboard is no longer focused on this element. Inherited from UIElement. |
| LostMouseCapture | Occurs when this element loses mouse capture. Inherited from UIElement. |
| LostStylusCapture | Occurs when this element loses stylus capture. Inherited from UIElement. |
| LostTouchCapture | Occurs when this element loses a touch capture. Inherited from UIElement. |
| ManipulationBoundaryFeedback | Occurs when the manipulation encounters a boundary. Inherited from UIElement. |
| ManipulationCompleted | Occurs when a manipulation and inertia on the UIElement object is complete. Inherited from UIElement. |
| ManipulationDelta | Occurs when the input device changes position during a manipulation. Inherited from UIElement. |
| ManipulationInertiaStarting | Occurs when the input device loses contact with the UIElement object during a manipulation and inertia begins. Inherited from UIElement. |
| ManipulationStarted | Occurs when an input device begins a manipulation on the UIElement object. Inherited from UIElement. |
| ManipulationStarting | Occurs when the manipulation processor is first created. Inherited from UIElement. |
| MouseDoubleClick | Occurs when a mouse button is clicked two or more times. Inherited from Control. |
| MouseDown | Occurs when any mouse button is pressed while the pointer is over this element. Inherited from UIElement. |
| MouseEnter | Occurs when the mouse pointer enters the bounds of this element. Inherited from UIElement. |
| MouseLeave | Occurs when the mouse pointer leaves the bounds of this element. Inherited from UIElement. |
| MouseLeftButtonDown | Occurs when the left mouse button is pressed while the mouse pointer is over this element. Inherited from UIElement. |
| MouseLeftButtonUp | Occurs when the left mouse button is released while the mouse pointer is over this element. Inherited from UIElement. |
| MouseMove | Occurs when the mouse pointer moves while over this element. Inherited from UIElement. |
| MouseRightButtonDown | Occurs when the right mouse button is pressed while the mouse pointer is over this element. Inherited from UIElement. |
| MouseRightButtonUp | Occurs when the right mouse button is released while the mouse pointer is over this element. Inherited from UIElement. |
| MouseUp | Occurs when any mouse button is released over this element. Inherited from UIElement. |
| MouseWheel | Occurs when the user rotates the mouse wheel while the mouse pointer is over this element. Inherited from UIElement. |
| PreviewDragEnter | Occurs when the input system reports an underlying drag event with this element as the drag target. Inherited from UIElement. |
| PreviewDragLeave | Occurs when the input system reports an underlying drag event with this element as the drag origin. Inherited from UIElement. |
| PreviewDragOver | Occurs when the input system reports an underlying drag event with this element as the potential drop target. Inherited from UIElement. |
| PreviewDrop | Occurs when the input system reports an underlying drop event with this element as the drop target. Inherited from UIElement. |
| PreviewGiveFeedback | Occurs when a drag-and-drop operation is started. Inherited from UIElement. |
| PreviewGotKeyboardFocus | Occurs when the keyboard is focused on this element. Inherited from UIElement. |
| PreviewKeyDown | Occurs when a key is pressed while focus is on this element. Inherited from UIElement. |
| PreviewKeyUp | Occurs when a key is released while focus is on this element. Inherited from UIElement. |
| PreviewLostKeyboardFocus | Occurs when the keyboard is no longer focused on this element. Inherited from UIElement. |
| PreviewMouseDoubleClick | Occurs when a user clicks the mouse button two or more times. Inherited from Control. |
| PreviewMouseDown | Occurs when any mouse button is pressed while the pointer is over this element. Inherited from UIElement. |
| PreviewMouseLeftButtonDown | Occurs when the left mouse button is pressed while the mouse pointer is over this element. Inherited from UIElement. |
| PreviewMouseLeftButtonUp | Occurs when the left mouse button is released while the mouse pointer is over this element. Inherited from UIElement. |
| PreviewMouseMove | Occurs when the mouse pointer moves while the mouse pointer is over this element. Inherited from UIElement. |
| PreviewMouseRightButtonDown | Occurs when the right mouse button is pressed while the mouse pointer is over this element. Inherited from UIElement. |
| PreviewMouseRightButtonUp | Occurs when the right mouse button is released while the mouse pointer is over this element. Inherited from UIElement. |
| PreviewMouseUp | Occurs when any mouse button is released while the mouse pointer is over this element. Inherited from UIElement. |
| PreviewMouseWheel | Occurs when the user rotates the mouse wheel while the mouse pointer is over this element. Inherited from UIElement. |
| PreviewQueryContinueDrag | Occurs when there is a change in the keyboard or mouse button state during a drag-and-drop operation. Inherited from UIElement. |
| PreviewStylusButtonDown | Occurs when the stylus button is pressed while the pointer is over this element. Inherited from UIElement. |
| PreviewStylusButtonUp | Occurs when the stylus button is released while the pointer is over this element. Inherited from UIElement. |
| PreviewStylusDown | Occurs when the stylus touches the digitizer while it is over this element. Inherited from UIElement. |
| PreviewStylusInAirMove | Occurs when the stylus moves over an element without actually touching the digitizer. Inherited from UIElement. |
| PreviewStylusInRange | Occurs when the stylus is close enough to the digitizer to be detected, while over this element. Inherited from UIElement. |
| PreviewStylusMove | Occurs when the stylus moves while over the element. The stylus must move while being detected by the digitizer to raise this event, otherwise, PreviewStylusInAirMove is raised instead. Inherited from UIElement. |
| PreviewStylusOutOfRange | Occurs when the stylus is too far from the digitizer to be detected. Inherited from UIElement. |
| PreviewStylusSystemGesture | Occurs when a user performs one of several stylus gestures. Inherited from UIElement. |
| PreviewStylusUp | Occurs when the user raises the stylus off the digitizer while the stylus is over this element. Inherited from UIElement. |
| PreviewTextInput | Occurs when this element gets text in a device-independent manner. Inherited from UIElement. |
| PreviewTouchDown | Occurs when a finger touches the screen while the finger is over this element. Inherited from UIElement. |
| PreviewTouchMove | Occurs when a finger moves on the screen while the finger is over this element. Inherited from UIElement. |
| PreviewTouchUp | Occurs when a finger is raised off of the screen while the finger is over this element. Inherited from UIElement. |
| QueryConnectionPoints | Fires each time the end-user moves the cursor with the active Connector Tool near shapes or their connection points. Inherited from DiagramControl. |
| QueryContinueDrag | Occurs when there is a change in the keyboard or mouse button state during a drag-and-drop operation. Inherited from UIElement. |
| QueryCursor | Occurs when the cursor is requested to display. This event is raised on an element each time that the mouse pointer moves to a new location, which means the cursor object might need to be changed based on its new position. Inherited from UIElement. |
| QueryItemDrawAction | Fires repeatedly as the end-user hovers over the diagram canvas while a drawing tool (Rectangle, Ellipse, Right Triangle or Hexagon) is selected. Inherited from DiagramControl. |
| QueryItemEditAction | Fires each time the end-user attempts to initiate text editing to edit the text within a diagram item. Inherited from DiagramControl. |
| QueryItemsAction | Fires each time the DiagramControl queries whether an action can be performed on specific diagram items. Inherited from DiagramControl. |
| QueryItemSnapping | Fires repeatedly as the end-user triggers snapping while dragging or resizing a diagram shape. Inherited from DiagramControl. |
| RelayoutItemsCompleted | Occurs immediately after an Automatic Layout algorithm is completed. Inherited from DiagramControl. |
| RequestBringIntoView | Occurs when BringIntoView(Rect) is called on this element. Inherited from FrameworkElement. |
| SelectionChanged | Fires when the selection changes (new items are selected, or currently selected items are deselected). Inherited from DiagramControl. |
| ShowingEditor | Enables you to prevent an end-user from activating the editors of individual diagram items. Inherited from DiagramControl. |
| ShowingExportDialog | Inherited from DiagramControl. |
| ShowingOpenDialog | Fires before showing an ‘Open File’ dialog, and allows it to be customized. Inherited from DiagramControl. |
| ShowingOpenImageDialog | Fires before showing an ‘Insert Picture’ dialog, and allows it to be customized. Inherited from DiagramControl. |
| ShowingSaveDialog | Fires before showing a ‘Save File As’ dialog, and allows it to be customized. Inherited from DiagramControl. |
| SizeChanged | Occurs when either the ActualHeight or the ActualWidth properties change value on this element. Inherited from FrameworkElement. |
| SourceUpdated | Occurs when the source value changes for any existing property binding on this element. Inherited from FrameworkElement. |
| StylusButtonDown | Occurs when the stylus button is pressed while the pointer is over this element. Inherited from UIElement. |
| StylusButtonUp | Occurs when the stylus button is released while the pointer is over this element. Inherited from UIElement. |
| StylusDown | Occurs when the stylus touches the digitizer while the stylus is over this element. Inherited from UIElement. |
| StylusEnter | Occurs when the stylus enters the bounds of this element. Inherited from UIElement. |
| StylusInAirMove | Occurs when the stylus moves over an element without actually touching the digitizer. Inherited from UIElement. |
| StylusInRange | Occurs when the stylus is close enough to the digitizer to be detected, while over this element. Inherited from UIElement. |
| StylusLeave | Occurs when the stylus leaves the bounds of the element. Inherited from UIElement. |
| StylusMove | Occurs when the stylus moves over this element. The stylus must move while on the digitizer to raise this event. Otherwise, StylusInAirMove is raised instead. Inherited from UIElement. |
| StylusOutOfRange | Occurs when the stylus is too far from the digitizer to be detected, while over this element. Inherited from UIElement. |
| StylusSystemGesture | Occurs when a user performs one of several stylus gestures. Inherited from UIElement. |
| StylusUp | Occurs when the user raises the stylus off the digitizer while it is over this element. Inherited from UIElement. |
| SubordinatesHidden | Occurs after the subordinates of a diagram shape are hidden. Inherited from DiagramControl. |
| SubordinatesHiding | Occurs before a DiagramItem‘s subordinates are hidden. Inherited from DiagramControl. |
| SubordinatesShowing | Occurs before a DiagramItem‘s subordinates are shown. Inherited from DiagramControl. |
| SubordinatesShown | Occurs after a DiagramItem‘s subordinates are shown. Inherited from DiagramControl. |
| TargetUpdated | Occurs when the target value changes for any property binding on this element. Inherited from FrameworkElement. |
| TextInput | Occurs when this element gets text in a device-independent manner. Inherited from UIElement. |
| ToolTipClosing | Occurs just before any tooltip on the element is closed. Inherited from FrameworkElement. |
| ToolTipOpening | Occurs when any tooltip on the element is opened. Inherited from FrameworkElement. |
| TouchDown | Occurs when a finger touches the screen while the finger is over this element. Inherited from UIElement. |
| TouchEnter | Occurs when a touch moves from outside to inside the bounds of this element. Inherited from UIElement. |
| TouchLeave | Occurs when a touch moves from inside to outside the bounds of this element. Inherited from UIElement. |
| TouchMove | Occurs when a finger moves on the screen while the finger is over this element. Inherited from UIElement. |
| TouchUp | Occurs when a finger is raised off of the screen while the finger is over this element. Inherited from UIElement. |
| Unloaded | Occurs when the element is removed from within an element tree of loaded elements. Inherited from FrameworkElement. |
| ZoomFactorChanged | Raises each time the current diagram zoom factor is changed. Inherited from DiagramControl. |
See Also