ToolStripItem.DragDrop ToolStripItem.DragDrop ToolStripItem.DragDrop ToolStripItem.DragDrop Event

定義

ユーザーが項目をドラッグし、マウス ボタンを離したとき (つまり、項目がドロップされたとき) に発生します。Occurs when the user drags an item and the user releases the mouse button, indicating that the item should be dropped into this item.

public:
 event System::Windows::Forms::DragEventHandler ^ DragDrop;
[System.ComponentModel.Browsable(false)]
public event System.Windows.Forms.DragEventHandler DragDrop;
member this.DragDrop : System.Windows.Forms.DragEventHandler 
Public Custom Event DragDrop As DragEventHandler 
属性

次のコード例は、 XおよびYプロパティをクライアントPointに変換する方法を示しています。The following code example shows how to convert the X and Y properties to a client Point. このコード例は、 ToolStripRendererクラスに対して提供される大規模な例の一部です。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;
    }
}
' This method defines the DragOver event behavior. 
Protected Overrides Sub OnDragOver(dea As DragEventArgs)
   MyBase.OnDragOver(dea)
   
   ' Get the ToolStripButton control 
   ' at the given mouse position.
   Dim p As New Point(dea.X, dea.Y)
   Dim item As ToolStripButton = CType(Me.GetItemAt(Me.PointToClient(p)), ToolStripButton)
   
   
   ' If the ToolStripButton control is the empty cell,
   ' indicate that the move operation is valid.
     If item Is Me.emptyCellButton Then
         ' Set the drag operation to indicate a valid move.
         dea.Effect = DragDropEffects.Move
     End If
 End Sub

注釈

のプロパティYとプロパティは、クライアント座標ではなく画面座標にあります。DragEventArgs XThe X and Y properties of the DragEventArgs are in screen coordinates, not client coordinates. イベントの処理の詳細については、「処理とイベントの発生」を参照してください。For more information about handling events, see Handling and Raising Events.

適用対象