[Expand]General Information
[Collapse]WinForms Controls
  .NET Core Support
 [Expand]What's Installed
 [Expand]Build an Application
 [Collapse]Controls and Libraries
  [Expand]Forms and User Controls
  [Expand]Messages, Notifications, and Dialogs
  [Expand]Editors and Simple Controls
  [Expand]Ribbon, Bars and Menu
  [Expand]Application UI Manager
  [Expand]Docking Library
  [Expand]Data Grid
  [Expand]Vertical Grid
  [Expand]Property Grid
  [Expand]Pivot Grid
  [Collapse]Tree List
   [Expand]Product Information
   [Expand]Feature Center
   [Expand]Visual Elements
   [Expand]Design-Time Features
    [Expand]Data Binding
    [Expand]Data Editing
    [Expand]Data Representation
    [Expand]Focus and Selection
     How to: Drag XtraGrid rows to the XtraTreeList
     How to: Dynamically Show and Hide Specific Nodes
     How to: Format a Column's Numeric Values as Currency
   [Expand]End User Capabilities
   [Expand]Member Tables
  [Expand]Gantt Control
  [Expand]Chart Control
  [Expand]Map Control
  [Expand]Rich Text Editor
  [Expand]Spell Checker
  [Expand]Form Layout Managers
  [Expand]Navigation Controls
  [Expand]PDF Viewer
  [Expand]TreeMap Control
  [Expand]Sunburst Control
 [Expand]Common Features
  Get More Help
 [Expand]API Reference
[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]Report and Dashboard Server
[Expand]eXpressApp Framework
[Expand]eXpress Persistent Objects
[Expand]CodeRush Classic
[Expand]Cross-Platform Core Libraries
[Expand]Tools and Utilities
 End-User Documentation
View this topic on docs.devexpress.com (Learn more)

How to: Drag XtraGrid rows to the XtraTreeList

This example demonstrates how to drag-and-drop rows from the Grid Control to the Tree List control. To support drag-and-drop operations within the GridView, set the ColumnViewOptionsBehavior.EditorShowMode property to either MouseUp or Click. This prevents a cell editor from being opened on the MouseDown event, as this event is used for initialization of drag-and drop operations. To allow the Tree List to accept data dropped onto it, set its AllowDrop property to true.

The TreeList.GetDXDragEventArgs method is used to convert drag event arguments to the DXDragEventArgs type. This allows you to get extended drag-and-drop parameters. The following parameters are used in this example:

  • DXDragEventArgsDrag.TagetNode - the target node over which the row is dropped;

DXDragEventArgsDrag.DragInsertPosition - specifies how a node is inserted (as a child, before or after a node, or at the end of the node collection).

The TreeList is bound to a BindingList data source. Nodes are added using the AppendNode method overload, which takes an array of column values as a parameter. The order of values in this array should match the order of the public properties in the data source.

Is this topic helpful?​​​​​​​