ToolStripItem.DragDrop Event

Definition

Namespace:

System.Windows.Forms

Assembly:

System.Windows.Forms.dll

Source:

ToolStripItem.cs

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

C#

[System.ComponentModel.Browsable(false)]
public event System.Windows.Forms.DragEventHandler? DragDrop;

Event Type

DragEventHandler

Attributes

BrowsableAttribute

Examples

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.

C#

// 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;
    }
}

Remarks

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

Applies to