This documentation is archived and is not being maintained.

ToolStripItem.DragDrop Event

Occurs when the user drags an item and the user releases the mouse button, indicating that the item should be dropped into this item.

Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in system.windows.forms.dll)

public event DragEventHandler DragDrop
/** @event */
public void add_DragDrop (DragEventHandler value)

/** @event */
public void remove_DragDrop (DragEventHandler value)

In JScript, you can handle the events defined by a class, but you cannot define your own.
Not applicable.

The X and Y properties of the DragEventArgs are in screen coordinates, not client coordinates. For more information about handling events, see Consuming Events.

The following code example shows how to convert the X and Y properties to a client Point. This code example is part of a larger example provided for the ToolStripRenderer class.

// This method defines the DragOver event behavior. 
protected override void OnDragOver(DragEventArgs dea)
{
    base.OnDragOver(dea);

    // Get the ToolStripButton control 
    // at the given mouse position.
    Point p = new Point(dea.X, dea.Y);
    ToolStripButton item = this.GetItemAt(
        this.PointToClient(p)) as ToolStripButton;

    // If the ToolStripButton control is the empty cell,
    // indicate that the move operation is valid.
    if( item == this.emptyCellButton )
    {
        // Set the drag operation to indicate a valid move.
        dea.Effect = DragDropEffects.Move;
    }
}

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0
Show: