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

Definición

Obtiene o establece un valor que indica si las operaciones de arrastrar y colocar y la reordenación de elementos se controlan mediante eventos que se implementan.Gets or sets a value indicating whether drag-and-drop and item reordering are handled through events that you implement.

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

Valor de propiedad

true si están permitidas las operaciones de arrastrar y colocar en el control; en caso contrario, false.true if drag-and-drop operations are allowed in the control; otherwise, false. De manera predeterminada, es false.The default is false.

Excepciones

Ejemplos

En el ejemplo de código siguiente se muestra cómo establecer el AllowDrop propiedad.The following code example demonstrates how to set the AllowDrop property. Este ejemplo de código forma parte de un ejemplo más extenso proporcionado para el ToolStripItem clase.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

Comentarios

Establecer el AllowDrop propiedad true y establezca el AllowItemReorder propiedad a false para responder al comportamiento de arrastrar y colocar ha definido en el ToolStripItem.DragEnter, ToolStripItem.DragLeave, y ToolStripItem.DragDrop eventos.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.

Establecer el AllowDrop propiedad false y establezca el AllowItemReorder propiedad a true para hacer que el ToolStripItem clase para controlar de arrastrar y colocar y forma privada reordenación de elementos.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.

Si se establecen los AllowDrop y AllowItemReorder propiedades a true produce una excepción.Setting both the AllowDrop and the AllowItemReorder properties to true throws an exception.

Se aplica a