[Expand]General Information
[Collapse]WinForms Controls
  .NET Core Support
  Prerequisites
 [Expand]What's Installed
 [Expand]Build an Application
 [Expand]Controls and Libraries
 [Expand]Common Features
  Get More Help
 [Collapse]API Reference
  [Expand]DevExpress.DataAccess.UI
  [Expand]DevExpress.DataAccess.UI.Design
  [Expand]DevExpress.DataAccess.UI.EntityFramework
  [Expand]DevExpress.DataAccess.UI.Excel
  [Expand]DevExpress.DataAccess.UI.ObjectBinding
  [Expand]DevExpress.DataAccess.UI.Sql
  [Expand]DevExpress.DataAccess.UI.Wizard
  [Expand]DevExpress.DataAccess.UI.Wizard.Services
  [Expand]DevExpress.DataAccess.UI.Wizard.Views
  [Expand]DevExpress.DocumentView
  [Expand]DevExpress.DocumentView.Controls
  [Expand]DevExpress.LookAndFeel
  [Expand]DevExpress.LookAndFeel.Helpers
  [Expand]DevExpress.Skins
  [Expand]DevExpress.Snap
  [Expand]DevExpress.Snap.API.Native
  [Expand]DevExpress.Snap.Core
  [Expand]DevExpress.Snap.Core.API
  [Expand]DevExpress.Snap.Core.Fields
  [Expand]DevExpress.Snap.Core.Forms
  [Expand]DevExpress.Snap.Core.Options
  [Expand]DevExpress.Snap.Core.Services
  [Expand]DevExpress.Snap.Extensions
  [Expand]DevExpress.Snap.Extensions.Localization
  [Expand]DevExpress.Snap.Extensions.UI
  [Expand]DevExpress.Snap.Localization
  [Expand]DevExpress.Snap.Options
  [Expand]DevExpress.Snap.Services
  [Expand]DevExpress.Utils
  [Expand]DevExpress.Utils.Animation
  [Expand]DevExpress.Utils.Behaviors
  [Expand]DevExpress.Utils.Controls
  [Expand]DevExpress.Utils.DragDrop
  [Expand]DevExpress.Utils.Drawing
  [Expand]DevExpress.Utils.Filtering
  [Expand]DevExpress.Utils.Layout
  [Expand]DevExpress.Utils.Menu
  [Expand]DevExpress.Utils.MVVM
  [Expand]DevExpress.Utils.Taskbar
  [Expand]DevExpress.Utils.Taskbar.Core
  [Expand]DevExpress.Utils.UI.Localization
  [Expand]DevExpress.Utils.VisualEffects
  [Expand]DevExpress.Utils.Win
  [Expand]DevExpress.XtraBars
  [Expand]DevExpress.XtraBars.Alerter
  [Expand]DevExpress.XtraBars.Docking
  [Expand]DevExpress.XtraBars.Docking2010
  [Expand]DevExpress.XtraBars.Docking2010.Base
  [Expand]DevExpress.XtraBars.Docking2010.Customization
  [Expand]DevExpress.XtraBars.Docking2010.Views
  [Expand]DevExpress.XtraBars.Docking2010.Views.NativeMdi
  [Expand]DevExpress.XtraBars.Docking2010.Views.Tabbed
  [Expand]DevExpress.XtraBars.Docking2010.Views.Widget
  [Expand]DevExpress.XtraBars.Docking2010.Views.WindowsUI
  [Expand]DevExpress.XtraBars.FluentDesignSystem
  [Expand]DevExpress.XtraBars.Localization
  [Expand]DevExpress.XtraBars.Navigation
  [Expand]DevExpress.XtraBars.Ribbon
  [Expand]DevExpress.XtraBars.Ribbon.Gallery
  [Expand]DevExpress.XtraBars.Ribbon.ViewInfo
  [Expand]DevExpress.XtraBars.ToastNotifications
  [Expand]DevExpress.XtraBars.ToolbarForm
  [Expand]DevExpress.XtraBars.Utils
  [Expand]DevExpress.XtraBars.WinRTLiveTiles
  [Expand]DevExpress.XtraCharts
  [Expand]DevExpress.XtraCharts.Designer
  [Expand]DevExpress.XtraCharts.Wizard
  [Expand]DevExpress.XtraDataLayout
  [Collapse]DevExpress.XtraDiagram
   [Expand]CustomDrawBackgroundEventArgs Class
   [Expand]CustomDrawItemEventArgs Class
    CustomDrawItemMode Enumeration
   [Expand]CustomHitTestEventArgs Class
   [Expand]DiagramAppearanceObject Class
   [Expand]DiagramAppearanceOptions Class
   [Expand]DiagramBeforeItemsMovingEventArgs Class
   [Expand]DiagramBeforeItemsResizingEventArgs Class
   [Expand]DiagramBeforeItemsRotatingEventArgs Class
   [Expand]DiagramClosedEditorEventArgs Class
   [Expand]DiagramConnectionChangedEventArgs Class
   [Expand]DiagramConnectionChangingEventArgs Class
   [Expand]DiagramConnector Class
   [Expand]DiagramContainer Class
   [Expand]DiagramContainerBase Class
   [Collapse]DiagramControl Class
     DiagramControl Members
     DiagramControl Constructor
    [Expand]DiagramControl Properties
    [Collapse]DiagramControl Events
      AddingNewItem Event
      BackColorChanged Event
      BeforeItemsMoving Event
      BeforeItemsResizing Event
      BeforeItemsRotating Event
      CanRedoChanged Event
      CanUndoChanged Event
      CanvasBoundsChanged Event
      ClosedEditor Event
      ConnectionChanged Event
      ConnectionChanging Event
      ContainerIsCollapsedChanged Event
      ContainerIsCollapsedChanging Event
      CustomCursor Event
      CustomDrawBackground Event
      CustomDrawItem Event
      CustomGetEditableItemProperties Event
      CustomGetEditableItemPropertiesCacheKey Event
      CustomGetSerializableItemProperties Event
      CustomHitTest Event
      CustomItemDrag Event
      CustomItemDragResult Event
      CustomItemGiveFeedback Event
      CustomItemQueryContinueDrag Event
      CustomLoadDocument Event
      CustomLoadImage Event
      CustomSaveDocument Event
      DeletingItems Event
      DocumentLoaded Event
      ExceptionMessage Event
      FontChanged Event
      ForeColorChanged Event
      HasChangesChanged Event
      IsTextEditModeChanged 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
      TitleChanged Event
      ZoomFactorChanged Event
    [Expand]DiagramControl Methods
   [Expand]DiagramCustomItemDragEventArgs Class
   [Expand]DiagramCustomItemQueryContinueDragEventArgs Class
   [Expand]DiagramDataBindingController Class
   [Expand]DiagramDataBindingControllerBase Class
    DiagramDrawingContext Enumeration
   [Expand]DiagramImage Class
   [Expand]DiagramItem Class
   [Expand]DiagramItemBoundsChangedEventArgs Class
   [Expand]DiagramItemCollection 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]DiagramOrgChartController Class
   [Expand]DiagramPanAndZoomControl Class
   [Expand]DiagramQueryConnectionPointsEventArgs Class
   [Expand]DiagramQueryItemDrawActionEventArgs Class
   [Expand]DiagramQueryItemEditActionEventArgs Class
   [Expand]DiagramQueryItemsActionEventArgs Class
   [Expand]DiagramQueryItemSnappingEventArgs Class
   [Expand]DiagramShape Class
   [Expand]DiagramShowingOpenDialogEventArgs Class
   [Expand]DiagramShowingOpenImageDialogEventArgs Class
   [Expand]DiagramShowingSaveDialogEventArgs Class
  [Expand]DevExpress.XtraDiagram.Docking
  [Expand]DevExpress.XtraDiagram.Options
  [Expand]DevExpress.XtraEditors
  [Expand]DevExpress.XtraEditors.ButtonPanel
  [Expand]DevExpress.XtraEditors.Calendar
  [Expand]DevExpress.XtraEditors.Camera
  [Expand]DevExpress.XtraEditors.Container
  [Expand]DevExpress.XtraEditors.Controls
  [Expand]DevExpress.XtraEditors.CustomEditor
  [Expand]DevExpress.XtraEditors.DXErrorProvider
  [Expand]DevExpress.XtraEditors.Filtering
  [Expand]DevExpress.XtraEditors.Mask
  [Expand]DevExpress.XtraEditors.Persistent
  [Expand]DevExpress.XtraEditors.Repository
  [Expand]DevExpress.XtraEditors.ViewInfo
  [Expand]DevExpress.XtraFilterEditor
  [Expand]DevExpress.XtraGantt
  [Expand]DevExpress.XtraGantt.Base.Scheduling
  [Expand]DevExpress.XtraGantt.Exceptions
  [Expand]DevExpress.XtraGantt.Localization
  [Expand]DevExpress.XtraGantt.Scheduling
  [Expand]DevExpress.XtraGauges.Presets.Styles
  [Expand]DevExpress.XtraGauges.Win
  [Expand]DevExpress.XtraGauges.Win.Base
  [Expand]DevExpress.XtraGauges.Win.Gauges.Circular
  [Expand]DevExpress.XtraGauges.Win.Gauges.Digital
  [Expand]DevExpress.XtraGauges.Win.Gauges.Linear
  [Expand]DevExpress.XtraGauges.Win.Gauges.State
  [Expand]DevExpress.XtraGrid
  [Expand]DevExpress.XtraGrid.Columns
  [Expand]DevExpress.XtraGrid.EditForm
  [Expand]DevExpress.XtraGrid.FilterEditor
  [Expand]DevExpress.XtraGrid.Localization
  [Expand]DevExpress.XtraGrid.Views.BandedGrid
  [Expand]DevExpress.XtraGrid.Views.BandedGrid.ViewInfo
  [Expand]DevExpress.XtraGrid.Views.Base
  [Expand]DevExpress.XtraGrid.Views.Base.ViewInfo
  [Expand]DevExpress.XtraGrid.Views.Card
  [Expand]DevExpress.XtraGrid.Views.Card.ViewInfo
  [Expand]DevExpress.XtraGrid.Views.Grid
  [Expand]DevExpress.XtraGrid.Views.Grid.ViewInfo
  [Expand]DevExpress.XtraGrid.Views.Layout
  [Expand]DevExpress.XtraGrid.Views.Layout.Events
  [Expand]DevExpress.XtraGrid.Views.Layout.ViewInfo
  [Expand]DevExpress.XtraGrid.Views.Printing
  [Expand]DevExpress.XtraGrid.Views.Tile
  [Expand]DevExpress.XtraGrid.Views.WinExplorer
  [Expand]DevExpress.XtraGrid.WinExplorer
  [Expand]DevExpress.XtraLayout
  [Expand]DevExpress.XtraLayout.Converter
  [Expand]DevExpress.XtraLayout.Customization
  [Expand]DevExpress.XtraLayout.HitInfo
  [Expand]DevExpress.XtraLayout.Localization
  [Expand]DevExpress.XtraLayout.Utils
  [Expand]DevExpress.XtraMap
  [Expand]DevExpress.XtraMap.Printing
  [Expand]DevExpress.XtraNavBar
  [Expand]DevExpress.XtraNavBar.ViewInfo
  [Expand]DevExpress.XtraPdfViewer
  [Expand]DevExpress.XtraPdfViewer.Commands
  [Expand]DevExpress.XtraPdfViewer.Extensions
  [Expand]DevExpress.XtraPdfViewer.Localization
  [Expand]DevExpress.XtraPivotGrid
  [Expand]DevExpress.XtraPivotGrid.Data
  [Expand]DevExpress.XtraPrinting
  [Expand]DevExpress.XtraPrinting.Control
  [Expand]DevExpress.XtraPrinting.Preview
  [Expand]DevExpress.XtraPrintingLinks
  [Expand]DevExpress.XtraReports.UI
  [Expand]DevExpress.XtraRichEdit
  [Expand]DevExpress.XtraRichEdit.Commands
  [Expand]DevExpress.XtraRichEdit.Export
  [Expand]DevExpress.XtraRichEdit.Import
  [Expand]DevExpress.XtraRichEdit.Menu
  [Expand]DevExpress.XtraScheduler
  [Expand]DevExpress.XtraScheduler.Drawing
  [Expand]DevExpress.XtraScheduler.GoogleCalendar
  [Expand]DevExpress.XtraScheduler.Printing
  [Expand]DevExpress.XtraScheduler.Reporting
  [Expand]DevExpress.XtraScheduler.Reporting.UI
  [Expand]DevExpress.XtraScheduler.Services
  [Expand]DevExpress.XtraScheduler.Services.Implementation
  [Expand]DevExpress.XtraScheduler.UI
  [Expand]DevExpress.XtraSpellChecker
  [Expand]DevExpress.XtraSpellChecker.Localization
  [Expand]DevExpress.XtraSplashForm
  [Expand]DevExpress.XtraSplashScreen
  [Expand]DevExpress.XtraSpreadsheet
  [Expand]DevExpress.XtraSpreadsheet.Services
  [Expand]DevExpress.XtraTab
  [Expand]DevExpress.XtraTab.Buttons
  [Expand]DevExpress.XtraTab.ViewInfo
  [Expand]DevExpress.XtraTabbedMdi
  [Expand]DevExpress.XtraToolbox
  [Expand]DevExpress.XtraTreeList
  [Expand]DevExpress.XtraTreeList.Columns
  [Expand]DevExpress.XtraTreeList.Data
  [Expand]DevExpress.XtraTreeList.Localization
  [Expand]DevExpress.XtraTreeList.Menu
  [Expand]DevExpress.XtraTreeList.Nodes
  [Expand]DevExpress.XtraTreeList.Nodes.Operations
  [Expand]DevExpress.XtraTreeList.StyleFormatConditions
  [Expand]DevExpress.XtraTreeMap
  [Expand]DevExpress.XtraTreeMap.Printing
  [Expand]DevExpress.XtraVerticalGrid
  [Expand]DevExpress.XtraVerticalGrid.Events
  [Expand]DevExpress.XtraVerticalGrid.Localization
  [Expand]DevExpress.XtraVerticalGrid.Rows
  [Expand]DevExpress.XtraWaitForm
  [Expand]DevExpress.XtraWizard
[Expand]ASP.NET Controls and MVC Extensions
[Expand]ASP.NET Bootstrap Controls
[Expand]ASP.NET Core Bootstrap Controls
[Expand]WPF Controls
[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]eXpress Persistent Objects
[Expand]CodeRush
[Expand]CodeRush Classic
[Expand]Cross-Platform Core Libraries
[Expand]Tools and Utilities
 End-User Documentation
View this topic on docs.devexpress.com (Learn more)

DiagramControl.QueryConnectionPoints Event

Fires each time the end-user moves the cursor with the active Connector Tool near shapes or their connection points.

Namespace:DevExpress.XtraDiagram
Assembly:DevExpress.XtraDiagram.v19.2.dll

Expanded Syntax

Expanded Event Data

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

The following DiagramQueryConnectionPointsEventArgs properties provide information specific to this event.
Property Description
Connector Returns the connector whose point is being moved by the end-user.
ConnectorPointType Returns the type of the connection point that is being moved by the end-user.
HoveredItem Returns the item hovered with the connection point that is being moved by the end-user.
ItemConnectionBorderState Specifies whether to enable connection to an item and show a visual indication.
ItemConnectionPointStates Provides access to the collection of objects that represent connection points of a diagram item.
OppositeItem Returns the diagram item to which the opposite connection point is glued.
OppositeItemPointIndex Returns the index of the opposite connection point.
OppositePoint Returns the coordinates of the opposite connection point.

Expanded Remarks

The event's ItemConnectionBorderState property specifies whether to highlight the shape or the connection point near the cursor.

The HoveredItem property returns the item hovered with the connection point that is being moved by the end-user. The ItemConnectionPointStates property provides access to the collection of the item's connection points. The OppositeItem property returns the diagram item to which the opposite connection point is glued.

The example below illustrates how to prevent the end-user from attaching connectors to a shape.

Expanded See Also

Is this topic helpful?​​​​​​​