ToolStripItem.Owner ToolStripItem.Owner ToolStripItem.Owner ToolStripItem.Owner Property

定義

この項目の所有者を取得または設定します。Gets or sets the owner of this item.

public:
 property System::Windows::Forms::ToolStrip ^ Owner { System::Windows::Forms::ToolStrip ^ get(); void set(System::Windows::Forms::ToolStrip ^ value); };
[System.ComponentModel.Browsable(false)]
public System.Windows.Forms.ToolStrip Owner { get; set; }
member this.Owner : System.Windows.Forms.ToolStrip with get, set
Public Property Owner As ToolStrip

プロパティ値

ToolStrip を所有しているか、これから所有する ToolStripItemThe ToolStrip that owns or is to own the ToolStripItem.

次のコード例は、 Ownerカスタム表示にプロパティを使用する方法を示しています。The following code example demonstrates how to use the Owner property for custom rendering. このコード例は、 ToolStripItem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 ToolStripItem class.

// This method defines the painting behavior of the control.
// It performs the following operations:
//
// Computes the layout of the item's image and text.
// Draws the item's background image.
// Draws the item's image.
// Draws the item's text.
//
// Drawing operations are implemented in the 
// RolloverItemRenderer class.
protected override void OnPaint(PaintEventArgs e)
{
    base.OnPaint(e);

    if (this.Owner != null)
    {
        // Find the dimensions of the image and the text 
        // areas of the item. 
        this.ComputeImageAndTextLayout();

        // Draw the background. This includes drawing a highlighted 
        // border when the mouse is in the client area.
        ToolStripItemRenderEventArgs ea = new ToolStripItemRenderEventArgs(
             e.Graphics,
             this);
        this.Owner.Renderer.DrawItemBackground(ea);

        // Draw the item's image. 
        ToolStripItemImageRenderEventArgs irea =
            new ToolStripItemImageRenderEventArgs(
            e.Graphics,
            this,
            imageRect );
        this.Owner.Renderer.DrawItemImage(irea);

        // If the item is on a drop-down, give its
        // text a different highlighted color.
        Color highlightColor = 
            this.IsOnDropDown ?
            Color.Salmon : SystemColors.ControlLightLight;

        // Draw the text, and highlight it if the 
        // the rollover state is true.
        ToolStripItemTextRenderEventArgs rea =
            new ToolStripItemTextRenderEventArgs(
            e.Graphics,
            this,
            base.Text,
            textRect,
            this.rolloverValue ? highlightColor : base.ForeColor,
            base.Font,
            base.TextAlign);
        this.Owner.Renderer.DrawItemText(rea);
    }
}
' This method defines the painting behavior of the control.
' It performs the following operations:
'
' Computes the layout of the item's image and text.
' Draws the item's background image.
' Draws the item's image.
' Draws the item's text.
'
' Drawing operations are implemented in the 
' RolloverItemRenderer class.
Protected Overrides Sub OnPaint(e As PaintEventArgs)
   MyBase.OnPaint(e)
   
   If (Me.Owner IsNot Nothing) Then
      ' Find the dimensions of the image and the text 
      ' areas of the item. 
      Me.ComputeImageAndTextLayout()
      
      ' Draw the background. This includes drawing a highlighted 
      ' border when the mouse is in the client area.
      Dim ea As New ToolStripItemRenderEventArgs(e.Graphics, Me)
      Me.Owner.Renderer.DrawItemBackground(ea)
      
      ' Draw the item's image. 
      Dim irea As New ToolStripItemImageRenderEventArgs(e.Graphics, Me, imageRect)
      Me.Owner.Renderer.DrawItemImage(irea)
      
      ' If the item is on a drop-down, give its
      ' text a different highlighted color.
         Dim highlightColor As Color = CType(IIf(Me.IsOnDropDown, Color.Salmon, SystemColors.ControlLightLight), Color)
      
      ' Draw the text, and highlight it if the 
      ' the rollover state is true.
         Dim rea As New ToolStripItemTextRenderEventArgs( _
            e.Graphics, _
            Me, _
            MyBase.Text, _
            textRect, _
            CType(IIf(Me.rolloverValue, highlightColor, MyBase.ForeColor), Color), _
            MyBase.Font, _
            MyBase.TextAlign)
      Me.Owner.Renderer.DrawItemText(rea)
   End If
 End Sub

注釈

Owner項目コレクションに現在ToolStripItemのが含まれているを返します。 ToolStripOwner returns the ToolStrip whose Items collection contains the current ToolStripItem. これは、オーバーフローを処理するImageList特殊なコードを記述しなくてToolStripも、トップレベルのプロパティを参照するための最適な方法です。This is the best way to reference ImageList or other properties in the top-level ToolStrip without writing special code to handle overflow.

Owner 項目ToolStripOverflowがに含まれている場合でも、は同じままです。The Owner remains the same even if the item falls into the ToolStripOverflow. は、 DisplayedItemsコレクションnullに含まれているがItemsコレクション内にはない特定の要素に対してを指定できます。OwnerThe Owner can be null for certain elements that are in the DisplayedItems collection but not in the Items collection.

適用対象