[Expand]General Information
[Expand]WinForms Controls
[Expand]ASP.NET Controls and MVC Extensions
[Expand]ASP.NET Bootstrap Controls
[Expand]ASP.NET Core Bootstrap Controls
[Collapse]WPF Controls
  Prerequisites
 [Expand]What's Installed
 [Expand]Common Concepts
 [Expand]MVVM Framework
 [Expand]Controls and Libraries
 [Expand]Scaffolding Wizard
 [Expand]Localization
  Redistribution and Deployment
  Get More Help
 [Collapse]API Reference
  [Expand]DevExpress.Charts.Designer
  [Expand]DevExpress.Data
  [Expand]DevExpress.Mvvm.UI
  [Expand]DevExpress.Mvvm.UI.Interactivity
  [Expand]DevExpress.Mvvm.UI.ModuleInjection
  [Expand]DevExpress.Xpf.Accordion
  [Expand]DevExpress.Xpf.Bars
  [Expand]DevExpress.Xpf.Carousel
  [Expand]DevExpress.Xpf.Charts
  [Expand]DevExpress.Xpf.Charts.Localization
  [Expand]DevExpress.Xpf.Charts.RangeControlClient
  [Expand]DevExpress.Xpf.ChunkList
  [Expand]DevExpress.Xpf.Controls
  [Expand]DevExpress.Xpf.Core
  [Expand]DevExpress.Xpf.Core.ConditionalFormatting
  [Expand]DevExpress.Xpf.Core.DataSources
  [Expand]DevExpress.Xpf.Core.ServerMode
  [Expand]DevExpress.Xpf.Data
  [Expand]DevExpress.Xpf.DataAccess
  [Expand]DevExpress.Xpf.DataAccess.DataSourceWizard
  [Collapse]DevExpress.Xpf.Diagram
   [Expand]DiagramCommands Class
   [Expand]DiagramConnectionChangedEventArgs Class
   [Expand]DiagramConnectionChangingEventArgs Class
   [Expand]DiagramConnector Class
   [Expand]DiagramContainer Class
   [Expand]DiagramContainerBase Class
   [Expand]DiagramContentItem Class
   [Collapse]DiagramControl Class
     DiagramControl Members
     DiagramControl Constructor
    [Expand]DiagramControl Properties
    [Collapse]DiagramControl Events
      AddingNewItem Event
      BeforeItemsMoving Event
      BeforeItemsResizing Event
      BeforeItemsRotating Event
      CanvasBoundsChanged Event
      ClosedEditor Event
      ConnectionChanged Event
      ConnectionChanging Event
      CustomCursor Event
      CustomGetEditableItemProperties Event
      CustomGetEditableItemPropertiesCacheKey Event
      CustomGetSerializableItemProperties Event
      CustomItemDrag Event
      CustomItemDragResult Event
      CustomItemGiveFeedback Event
      CustomItemQueryContinueDrag Event
      CustomLoadDocument Event
      CustomLoadImage Event
      CustomSaveDocument Event
      DeletingItems Event
      DocumentLoaded Event
      ExceptionMessage Event
      ItemBoundsChanged Event
      ItemContentChanged Event
      ItemCreating Event
      ItemDrawing Event
      ItemInitializing Event
      ItemsChanged Event
      ItemsDeleting Event
      ItemsMoving Event
      ItemsPasting Event
      ItemsResizing Event
      ItemsRotating Event
      QueryConnectionPoints Event
      QueryItemDrawAction Event
      QueryItemEditAction Event
      QueryItemsAction Event
      QueryItemSnapping Event
      RelayoutItemsCompleted Event
      SelectionChanged Event
      ShowingEditor Event
      ShowingOpenDialog Event
      ShowingOpenImageDialog Event
      ShowingSaveDialog Event
      SubordinatesHidden Event
      SubordinatesHiding Event
      SubordinatesShowing Event
      SubordinatesShown Event
      ZoomFactorChanged Event
    [Expand]DiagramControl Methods
   [Expand]DiagramCustomCursorEventArgs Class
   [Expand]DiagramDataBindingBehavior Class
   [Expand]DiagramDataBindingBehaviorBase Class
   [Expand]DiagramDesignerControl Class
    DiagramDrawingContext Enumeration
   [Expand]DiagramImage Class
   [Expand]DiagramItem Class
   [Expand]DiagramItemBoundsChangedEventArgs Class
   [Expand]DiagramItemContentChangedEventArgs Class
   [Expand]DiagramItemCreatingEventArgs Class
   [Expand]DiagramItemDrawingEventArgs Class
   [Expand]DiagramItemInitializingEventArgs Class
   [Expand]DiagramItemsChangedEventArgs Class
   [Expand]DiagramItemsDeletingEventArgs Class
   [Expand]DiagramItemsGeneratedEventArgs Class
   [Expand]DiagramItemsMovingEventArgs Class
   [Expand]DiagramItemsPastingEventArgs Class
   [Expand]DiagramItemsResizingEventArgs Class
   [Expand]DiagramItemsRotatingEventArgs Class
   [Expand]DiagramOrgChartBehavior Class
   [Expand]DiagramShape Class
   [Expand]DiagramShowingOpenDialogEventArgs Class
   [Expand]DiagramShowingOpenImageDialogEventArgs Class
   [Expand]DiagramShowingSaveDialogEventArgs Class
  [Expand]DevExpress.Xpf.Dialogs
  [Expand]DevExpress.Xpf.Docking
  [Expand]DevExpress.Xpf.Docking.Base
  [Expand]DevExpress.Xpf.DocumentViewer
  [Expand]DevExpress.Xpf.DXBinding
  [Expand]DevExpress.Xpf.Editors
  [Expand]DevExpress.Xpf.Editors.DataPager
  [Expand]DevExpress.Xpf.Editors.DateNavigator
  [Expand]DevExpress.Xpf.Editors.ExpressionEditor
  [Expand]DevExpress.Xpf.Editors.ExpressionEditor.Native
  [Expand]DevExpress.Xpf.Editors.Filtering
  [Expand]DevExpress.Xpf.Editors.Flyout
  [Expand]DevExpress.Xpf.Editors.Flyout.Native
  [Expand]DevExpress.Xpf.Editors.Helpers
  [Expand]DevExpress.Xpf.Editors.Native
  [Expand]DevExpress.Xpf.Editors.Popups
  [Expand]DevExpress.Xpf.Editors.RangeControl
  [Expand]DevExpress.Xpf.Editors.Settings
  [Expand]DevExpress.Xpf.Editors.Validation
  [Expand]DevExpress.Xpf.ExpressionEditor
  [Expand]DevExpress.Xpf.Gauges
  [Expand]DevExpress.Xpf.Gauges.Localization
  [Expand]DevExpress.Xpf.Grid
  [Expand]DevExpress.Xpf.Grid.ConditionalFormatting
  [Expand]DevExpress.Xpf.Grid.LookUp
  [Expand]DevExpress.Xpf.Grid.TreeList
  [Expand]DevExpress.Xpf.Layout.Core
  [Expand]DevExpress.Xpf.LayoutControl
  [Expand]DevExpress.Xpf.Map
  [Expand]DevExpress.Xpf.NavBar
  [Expand]DevExpress.Xpf.Navigation
  [Expand]DevExpress.Xpf.PdfViewer
  [Expand]DevExpress.Xpf.PivotGrid
  [Expand]DevExpress.Xpf.PivotGrid.Printing
  [Expand]DevExpress.Xpf.Printing
  [Expand]DevExpress.Xpf.Printing.Parameters
  [Expand]DevExpress.Xpf.Printing.Parameters.Models
  [Expand]DevExpress.Xpf.Printing.PreviewControl
  [Expand]DevExpress.Xpf.Printing.PreviewControl.Bars
  [Expand]DevExpress.Xpf.Prism
  [Expand]DevExpress.Xpf.PropertyGrid
  [Expand]DevExpress.Xpf.Reports.UserDesigner
  [Expand]DevExpress.Xpf.Reports.UserDesigner.Extensions
  [Expand]DevExpress.Xpf.Reports.UserDesigner.Localization
  [Expand]DevExpress.Xpf.Reports.UserDesigner.ReportWizard
  [Expand]DevExpress.Xpf.Reports.UserDesigner.ReportWizard.Pages
  [Expand]DevExpress.Xpf.Ribbon
  [Expand]DevExpress.Xpf.RichEdit
  [Expand]DevExpress.Xpf.RichEdit.Menu
  [Expand]DevExpress.Xpf.Scheduler
  [Expand]DevExpress.Xpf.Scheduler.Drawing
  [Expand]DevExpress.Xpf.Scheduler.Menu
  [Expand]DevExpress.Xpf.Scheduler.Reporting
  [Expand]DevExpress.Xpf.Scheduler.UI
  [Expand]DevExpress.Xpf.Scheduling
  [Expand]DevExpress.Xpf.Scheduling.Editors
  [Expand]DevExpress.Xpf.Scheduling.Reporting
  [Expand]DevExpress.Xpf.Scheduling.Visual
  [Expand]DevExpress.Xpf.Scheduling.VisualData
  [Expand]DevExpress.Xpf.SpellChecker
  [Expand]DevExpress.Xpf.Spreadsheet
  [Expand]DevExpress.Xpf.Spreadsheet.Menu
  [Expand]DevExpress.Xpf.TreeMap
  [Expand]DevExpress.Xpf.Utils.Themes
  [Expand]DevExpress.Xpf.WindowsUI
  [Expand]DevExpress.Xpf.WindowsUI.Internal
  [Expand]DevExpress.Xpf.WindowsUI.Navigation
  [Expand]DevExpress.XtraRichEdit
  [Expand]DevExpress.XtraRichEdit.Printing
[Expand]Xamarin Controls
[Expand]Windows 10 App Controls
[Expand]Office File API
[Expand]Reporting
[Expand]Report and Dashboard Server
[Expand]Dashboard
[Expand]eXpressApp Framework
[Expand]CodeRush
[Expand]CodeRush Classic
[Expand]Cross-Platform Core Libraries
[Expand]Tools and Utilities
 End-User Documentation

DiagramControl.ConnectionChanging Event

Occurs when the connection is about to be changed by the end-user.

Namespace:DevExpress.Xpf.Diagram
Assembly:DevExpress.Xpf.Diagram.v18.1.dll

Expanded Syntax

Expanded Event Data

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

The following DiagramConnectionChangingEventArgs properties provide information specific to this event.
Property Description
Cancel Gets or sets whether the event should be canceled.
Connector Returns the connector whose beginning/ending item is about to be changed.
ConnectorPointType Returns the type of the connection point which is about to be moved.
Handled Gets or sets a value that indicates the present state of the event handling for a routed event as it travels the route.
NewIndex Returns the index of the connection point on the diagram item to which the connector is about to be attached.
NewItem Returns the diagram item the connector is about to be attached to.
NewPoint Returns the new coordinates of the connection point which is about to be moved.
OldIndex Returns the index of the connection point on the diagram item from which the connector is about to be detached.
OldItem Returns the diagram item from which the connector is about to be detached.
OldPoint Returns the initial coordinates of the connection point which is about to be moved.
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.
Source Gets or sets a reference to the object that raised the event.

Expanded Remarks

The ConnectorPointType event's property returns whether the connection point that is about to be changed is the begin or end point. To get the previous diagram item and its connection point to which the connection point was glued, use the OldItem and OldIndex properties correspondingly. The new item and its connection point are returned by the NewItem and NewIndex properties

Expanded See Also

Is this topic helpful?​​​​​​​