ItemDragOver Event

Occurs when an UltraExplorerBarItem is dragged over a valid drop location.

Syntax

Visual Basic

'Declaration
 
Public Event ItemDragOver As ItemDragOverEventHandler

C#

public event ItemDragOverEventHandler ItemDragOver

Event Data

The event handler receives an argument of type ItemDragOverEventArgs containing data related to this event. The following ItemDragOverEventArgs properties provide information specific to this event.

Property	Description
AllowDrop	Returns/sets whether the UltraExplorerBarItem can be dropped in the TargetGroup.
DragAction	Returns/sets whether a drop of the UltraExplorerBarItem should result in a move or copy of the UltraExplorerBarItem.
DragCursor	Returns/sets the cursor to be displayed while over the TargetGroup. If set to null a default cursor will be supplied.
Item	Returns the UltraExplorerBarItem associated with the ItemDragOverEventArgs.
TargetGroup	Returns the UltraExplorerBarGroup that the UltraExplorerBarItem will be dropped on.
X	Returns the x-coordinate of the mouse position in screen coordinates.
Y	Returns the y-coordinate of the mouse position in screen coordinates.

Example

The following code shows how to process the ItemDragOver event.

For an overview of how to handle events in Visual Basic or Visual C#, see Event Handlers in Visual Basic and Visual C#. For specific information and code examples illustrating how to consume events in your application, see Consuming Events in the .NET Framework Developer's Guide.

Visual Basic

Imports System.Diagnostics
Imports Infragistics.Win
Imports Infragistics.Win.UltraWinExplorerBar

	Private Sub ultraExplorerBar1_ItemDragOver(ByVal sender As Object, ByVal e As Infragistics.Win.UltraWinExplorerBar.ItemDragOverEventArgs) Handles ultraExplorerBar1.ItemDragOver

		Debug.WriteLine(String.Format("The item '{0}' is being dragged to group '{1}'", e.Item.Text, e.TargetGroup))
		Debug.WriteLine(String.Format("The group is currently over point: ", New Point(e.X, e.Y).ToString()))


		' Don't allow the Item to be dropped if the target group has a key of "System" and
		' the Item is being moved
		If (e.TargetGroup.Key = "System" AndAlso e.DragAction = ItemDragAction.Move) Then
			e.AllowDrop = False
			e.DragCursor = Cursors.No
		End If

	End Sub

C#

using System.Diagnostics;
using Infragistics.Win;
using Infragistics.Win.UltraWinExplorerBar;

		private void ultraExplorerBar1_ItemDragOver(object sender, Infragistics.Win.UltraWinExplorerBar.ItemDragOverEventArgs e)
		{
			Debug.WriteLine(string.Format("The item '{0}' is being dragged to group '{1}'", e.Item.Text, e.TargetGroup));
			Debug.WriteLine(string.Format("The group is currently over point: ", new Point(e.X, e.Y).ToString()));


			// Don't allow the Item to be dropped if the target group has a key of "System" and
			// the Item is being moved
			if (e.TargetGroup.Key == "System"  &&  e.DragAction == ItemDragAction.Move)
			{
				e.AllowDrop		= false;
				e.DragCursor	= Cursors.No;
			}
		}

Requirements

Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2