ToolStripItem.AllowDrop ToolStripItem.AllowDrop ToolStripItem.AllowDrop ToolStripItem.AllowDrop Property


実装するイベントによって、ドラッグ アンド ドロップおよび項目の順番変更が処理されるかどうかを示す値を取得または設定します。Gets or sets a value indicating whether drag-and-drop and item reordering are handled through events that you implement.

 virtual property bool AllowDrop { bool get(); void set(bool value); };
public virtual bool AllowDrop { get; set; }
member this.AllowDrop : bool with get, set
Public Overridable Property AllowDrop As Boolean


コントロールでドラッグ アンド ドロップ操作を実行できる場合は true。それ以外の場合は falsetrue if drag-and-drop operations are allowed in the control; otherwise, false. 既定値は false です。The default is false.


次のコード例は、設定する方法を示します、AllowDropプロパティ。The following code example demonstrates how to set the AllowDrop property. このコード例が示されている例の一部、ToolStripItemクラス。This code example is part of a larger example provided for the ToolStripItem class.

// This utility method creates a RolloverItem 
// and adds it to a ToolStrip control.
private RolloverItem CreateRolloverItem(
    ToolStrip owningToolStrip,
    string txt,
    Font f,
    string imgKey,
    TextImageRelation tir,
    string backImgKey)
    RolloverItem item = new RolloverItem();

    item.Alignment = ToolStripItemAlignment.Left;
    item.AllowDrop = false;
    item.AutoSize = true;

    item.BackgroundImage = owningToolStrip.ImageList.Images[backImgKey];
    item.BackgroundImageLayout = ImageLayout.Center;
    item.DisplayStyle = ToolStripItemDisplayStyle.ImageAndText;
    item.DoubleClickEnabled = true;
    item.Enabled = true;
    item.Font = f;

    // These assignments are equivalent. Each assigns an
    // image from the owning toolstrip's image list.
    item.ImageKey = imgKey;
    //item.Image = owningToolStrip.ImageList.Images[infoIconKey];
    //item.ImageIndex = owningToolStrip.ImageList.Images.IndexOfKey(infoIconKey);
    item.ImageScaling = ToolStripItemImageScaling.None;

    item.Owner = owningToolStrip;
    item.Padding = new Padding(2);
    item.Text = txt;
    item.TextAlign = ContentAlignment.MiddleLeft;
    item.TextDirection = ToolStripTextDirection.Horizontal;
    item.TextImageRelation = tir;

    return item;
' This utility method creates a RolloverItem 
' and adds it to a ToolStrip control.
 Private Function CreateRolloverItem( _
 ByVal owningToolStrip As ToolStrip, _
 ByVal txt As String, _
 ByVal f As Font, _
 ByVal imgKey As String, _
 ByVal tir As TextImageRelation, _
 ByVal backImgKey As String) As RolloverItem

     Dim item As New RolloverItem()

     item.Alignment = ToolStripItemAlignment.Left
     item.AllowDrop = False
     item.AutoSize = True

     item.BackgroundImage = owningToolStrip.ImageList.Images(backImgKey)
     item.BackgroundImageLayout = ImageLayout.Center
     item.DisplayStyle = ToolStripItemDisplayStyle.ImageAndText
     item.DoubleClickEnabled = True
     item.Enabled = True
     item.Font = f

     ' These assignments are equivalent. Each assigns an
     ' image from the owning toolstrip's image list.
     item.ImageKey = imgKey
     'item.Image = owningToolStrip.ImageList.Images[infoIconKey];
     'item.ImageIndex = owningToolStrip.ImageList.Images.IndexOfKey(infoIconKey);
     item.ImageScaling = ToolStripItemImageScaling.None

     item.Owner = owningToolStrip
     item.Padding = New Padding(2)
     item.Text = txt
     item.TextAlign = ContentAlignment.MiddleLeft
     item.TextDirection = ToolStripTextDirection.Horizontal
     item.TextImageRelation = tir

     Return item
 End Function


設定、AllowDropプロパティをtrue設定と、AllowItemReorderプロパティをfalse内に定義したドラッグ アンド ドロップの動作に応答する、 ToolStripItem.DragEnterToolStripItem.DragLeave、およびToolStripItem.DragDropイベント。Set the AllowDrop property to true and set the AllowItemReorder property to false to respond to drag-and-drop behavior you have defined in the ToolStripItem.DragEnter, ToolStripItem.DragLeave, and ToolStripItem.DragDrop events.

設定、AllowDropプロパティをfalse設定と、AllowItemReorderプロパティをtrueさせる、ToolStripItemドラッグ アンド ドロップおよび項目の順番変更を個別に処理するクラス。Set the AllowDrop property to false and set the AllowItemReorder property to true to cause the ToolStripItem class to handle drag-and-drop and item reordering privately.

両方の設定、AllowDropAllowItemReorderプロパティtrue例外をスローします。Setting both the AllowDrop and the AllowItemReorder properties to true throws an exception.