ItemDragEventArgs Class
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
The ItemDragEventArgs type exposes the following members.
| Name | Description | |
|---|---|---|
![]() | ItemDragEventArgs(MouseButtons) | Initializes a new instance of the ItemDragEventArgs class with a specified mouse button. |
![]() | ItemDragEventArgs(MouseButtons, Object) | Initializes a new instance of the ItemDragEventArgs class with a specified mouse button and the item that is being dragged. |
| Name | Description | |
|---|---|---|
![]() | Equals(Object) | Determines whether the specified Object is equal to the current Object. (Inherited from Object.) |
![]() | Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.) |
![]() | GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
![]() | GetType | Gets the Type of the current instance. (Inherited from Object.) |
![]() | MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
![]() | ToString | Returns a string that represents the current object. (Inherited from Object.) |
The ItemDrag event occurs when the user begins dragging an item. An ItemDragEventArgs object specifies which mouse button was pressed.
The following example illustrates the use of ItemDragEventArgs when enabling drag-and-drop operations within a TreeView. The Button property determines whether the dragged node should be moved or copied to its destination. The node, represented by the Item property, is then passed to the TreeView control's DoDragDrop method along with a value indicating the desired effect.
For the complete example, see the TreeView::ItemDrag reference topic.
private: void treeView1_ItemDrag( Object^ /*sender*/, ItemDragEventArgs^ e ) { // Move the dragged node when the left mouse button is used. if ( e->Button == ::MouseButtons::Left ) { DoDragDrop( e->Item, DragDropEffects::Move ); } // Copy the dragged node when the right mouse button is used. else // Copy the dragged node when the right mouse button is used. if ( e->Button == ::MouseButtons::Right ) { DoDragDrop( e->Item, DragDropEffects::Copy ); } }
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
