ToolStripItem ToolStripItem ToolStripItem ToolStripItem Class

Definizione

Rappresenta la classe base astratta che gestisce gli eventi e il layout di tutti gli elementi che possono essere contenuti in ToolStrip o in ToolStripDropDown.Represents the abstract base class that manages events and layout for all the elements that a ToolStrip or ToolStripDropDown can contain.

public ref class ToolStripItem abstract : System::ComponentModel::Component, IDisposable, System::Windows::Forms::IDropTarget
public abstract class ToolStripItem : System.ComponentModel.Component, IDisposable, System.Windows.Forms.IDropTarget
type ToolStripItem = class
    inherit Component
    interface IDropTarget
    interface IComponent
    interface IDisposable
Public MustInherit Class ToolStripItem
Inherits Component
Implements IDisposable, IDropTarget
Ereditarietà
Derivato
Implementazioni

Esempi

Esempio di codice seguente viene illustrato come implementare una classe personalizzata ToolStripItem controllo.The following code example demonstrates how to implement a custom ToolStripItem control.

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Windows.Forms;

namespace RolloverItemDemoLib
{
    // This class implements a ToolStripItem that highlights
    // its border and text when the mouse enters its
    // client rectangle. It has a clickable state which is
    // exposed through the Clicked property and displayed
    // by highlighting or graying out the item's image. 
    public class RolloverItem : ToolStripItem
    {
        private bool clickedValue = false;
        private bool rolloverValue = false;

        private Rectangle imageRect;
        private Rectangle textRect;

        // For brevity, this implementation limits the possible 
        // TextDirection values to ToolStripTextDirection.Horizontal. 
        public override ToolStripTextDirection TextDirection
        {
            get
            {
                return base.TextDirection;
            }
            set
            {
                if (value == ToolStripTextDirection.Horizontal)
                {
                    base.TextDirection = value;
                }
                else
                {
                    throw new ArgumentException(
                        "RolloverItem supports only horizontal text.");
                }
            }
        }

        // For brevity, this implementation limits the possible 
        // TextImageRelation values to ImageBeforeText and TextBeforeImage. 
        public new TextImageRelation TextImageRelation
        {
            get
            {
                return base.TextImageRelation;
            }

            set
            {
                if (value == TextImageRelation.ImageBeforeText || 
                    value == TextImageRelation.TextBeforeImage)
                {
                    base.TextImageRelation = value;
                }
                else
                {
                    throw new ArgumentException(
                        "Unsupported TextImageRelation value.");
                }
            }
        }
        
        // This property returns true if the mouse is 
        // inside the client rectangle.
        public bool Rollover
        {
            get
            {
                return this.rolloverValue;
            }   
        }

        // This property returns true if the item 
        // has been toggled into the clicked state.
        // Clicking again toggles it to the 
        // unclicked state.
        public bool Clicked
        {
            get
            {
                return this.clickedValue;
            }
        }

        // The method defines the behavior of the Click event.
        // It simply toggles the state of the clickedValue field.
        protected override void OnClick(EventArgs e)
        {
            base.OnClick(e);

            this.clickedValue ^= true;
        }

        // The method defines the behavior of the DoubleClick 
        // event. It shows a MessageBox with the item's text.
        protected override void OnDoubleClick(EventArgs e)
        {
            base.OnDoubleClick(e);

            string msg = String.Format("Item: {0}", this.Text);

            MessageBox.Show(msg);
        }

        // This method defines the behavior of the MouseEnter event.
        // It sets the state of the rolloverValue field to true and
        // tells the control to repaint.
        protected override void OnMouseEnter(EventArgs e)
        {
            base.OnMouseEnter(e);

            this.rolloverValue = true;

            this.Invalidate();
        }

        // This method defines the behavior of the MouseLeave event.
        // It sets the state of the rolloverValue field to false and
        // tells the control to repaint.
        protected override void OnMouseLeave(EventArgs e)
        {
            base.OnMouseLeave(e);

            this.rolloverValue = false;

            this.Invalidate();
        }

        // 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 utility method computes the layout of the 
        // RolloverItem control's image area and the text area.
        // For brevity, only the following settings are 
        // supported:
        //
        // ToolStripTextDirection.Horizontal
        // TextImageRelation.ImageBeforeText 
        // TextImageRelation.ImageBeforeText
        // 
        // It would not be difficult to support vertical text
        // directions and other image/text relationships.
        private void ComputeImageAndTextLayout()
        {
            Rectangle cr = base.ContentRectangle;
            Image img = base.Owner.ImageList.Images[base.ImageKey];

            // Compute the center of the item's ContentRectangle.
            int centerY = (cr.Height - img.Height) / 2;

            // Find the dimensions of the image and the text 
            // areas of the item. The text occupies the space 
            // not filled by the image. 
            if (base.TextImageRelation == TextImageRelation.ImageBeforeText &&
                base.TextDirection == ToolStripTextDirection.Horizontal)
            {
                imageRect = new Rectangle(
                    base.ContentRectangle.Left,
                    centerY,
                    base.Image.Width,
                    base.Image.Height);

                textRect = new Rectangle(
                    imageRect.Width,
                    base.ContentRectangle.Top,
                    base.ContentRectangle.Width - imageRect.Width,
                    base.ContentRectangle.Height);
            }
            else if (base.TextImageRelation == TextImageRelation.TextBeforeImage &&
                     base.TextDirection == ToolStripTextDirection.Horizontal)
            {
                imageRect = new Rectangle(
                    base.ContentRectangle.Right - base.Image.Width,
                    centerY,
                    base.Image.Width,
                    base.Image.Height);

                textRect = new Rectangle(
                    base.ContentRectangle.Left,
                    base.ContentRectangle.Top,
                    imageRect.X,
                    base.ContentRectangle.Bottom);
            }
        }
    }

    #region RolloverItemRenderer

    // This is the custom renderer for the RolloverItem control.
    // It draws a border around the item when the mouse is
    // in the item's client area. It also draws the item's image
    // in an inactive state (grayed out) until the user clicks
    // the item to toggle its "clicked" state.
    internal class RolloverItemRenderer : ToolStripSystemRenderer
    {
        protected override void OnRenderItemImage(
            ToolStripItemImageRenderEventArgs e)
        {
            base.OnRenderItemImage(e);

            RolloverItem item = e.Item as RolloverItem;

            // If the ToolSTripItem is of type RolloverItem, 
            // perform custom rendering for the image.
            if (item != null)
            {
                if (item.Clicked)
                {
                    // The item is in the clicked state, so 
                    // draw the image as usual.
                    e.Graphics.DrawImage(
                        e.Image,
                        e.ImageRectangle.X,
                        e.ImageRectangle.Y);
                }
                else
                {
                    // In the unclicked state, gray out the image.
                    ControlPaint.DrawImageDisabled(
                        e.Graphics,
                        e.Image,
                        e.ImageRectangle.X,
                        e.ImageRectangle.Y,
                        item.BackColor);
                }
            }
        }

        // This method defines the behavior for rendering the
        // background of a ToolStripItem. If the item is a
        // RolloverItem, it paints the item's BackgroundImage 
        // centered in the client area. If the mouse is in the 
        // item's client area, a border is drawn around it.
        // If the item is on a drop-down or if it is on the
        // overflow, a gradient is painted in the background.
        protected override void OnRenderItemBackground(
            ToolStripItemRenderEventArgs e)
        {
            base.OnRenderItemBackground(e);

            RolloverItem item = e.Item as RolloverItem;

            // If the ToolSTripItem is of type RolloverItem, 
            // perform custom rendering for the background.
            if (item != null)
            {
                if (item.Placement == ToolStripItemPlacement.Overflow ||
                    item.IsOnDropDown)
                {
                    using (LinearGradientBrush b = new LinearGradientBrush(
                        item.ContentRectangle,
                        Color.Salmon,
                        Color.DarkRed,
                        0f,
                        false))
                    {
                        e.Graphics.FillRectangle(b, item.ContentRectangle);
                    }
                }

                // The RolloverItem control only supports 
                // the ImageLayout.Center setting for the
                // BackgroundImage property.
                if (item.BackgroundImageLayout == ImageLayout.Center)
                {
                    // Get references to the item's ContentRectangle
                    // and BackgroundImage, for convenience.
                    Rectangle cr = item.ContentRectangle;
                    Image bgi = item.BackgroundImage;

                    // Compute the center of the item's ContentRectangle.
                    int centerX = (cr.Width - bgi.Width) / 2;
                    int centerY = (cr.Height - bgi.Height) / 2;

                    // If the item is selected, draw the background
                    // image as usual. Otherwise, draw it as disabled.
                    if (item.Selected)
                    {
                        e.Graphics.DrawImage(bgi, centerX, centerY);
                    }
                    else
                    {
                        ControlPaint.DrawImageDisabled(
                                e.Graphics,
                                bgi,
                                centerX,
                                centerY,
                                item.BackColor);
                    }
                }

                // If the item is in the rollover state, 
                // draw a border around it.
                if (item.Rollover)
                {
                    ControlPaint.DrawFocusRectangle(
                        e.Graphics,
                        item.ContentRectangle);
                }
            }
        }

    #endregion

    }

    // This form tests various features of the RolloverItem
    // control. RolloverItem conrols are created and added
    // to the form's ToolStrip. They are also created and 
    // added to a button's ContextMenuStrip. The behavior
    // of the RolloverItem control differs depending on 
    // the type of parent control.
    public class RolloverItemTestForm : Form
    {
        private System.Windows.Forms.ToolStrip toolStrip1;
        private System.Windows.Forms.Button button1;

        private string infoIconKey = "Information icon";
        private string handIconKey = "Hand icon";
        private string exclIconKey = "Exclamation icon";
        private string questionIconKey = "Question icon";
        private string warningIconKey = "Warning icon ";

        private System.ComponentModel.IContainer components = null;

        public RolloverItemTestForm()
        {
            InitializeComponent();

            // Set up the form's ToolStrip control.
            InitializeToolStrip();

            // Set up the ContextMenuStrip for the button.
            InitializeContextMenu();
        }

        // This utility method initializes the ToolStrip control's 
        // image list. For convenience, icons from the SystemIcons 
        // class are used for this demonstration, but any images
        // could be used.
        private void InitializeImageList(ToolStrip ts)
        {
            if (ts.ImageList == null)
            {
                ts.ImageList = new ImageList();
                ts.ImageList.ImageSize = SystemIcons.Exclamation.Size;

                ts.ImageList.Images.Add(
                    this.infoIconKey,
                    SystemIcons.Information);

                ts.ImageList.Images.Add(
                    this.handIconKey,
                    SystemIcons.Hand);

                ts.ImageList.Images.Add(
                    this.exclIconKey,
                    SystemIcons.Exclamation);

                ts.ImageList.Images.Add(
                    this.questionIconKey,
                    SystemIcons.Question);

                ts.ImageList.Images.Add(
                    this.warningIconKey,
                    SystemIcons.Warning);
            }
        }

        private void InitializeToolStrip()
        {
            this.InitializeImageList(this.toolStrip1);

            this.toolStrip1.Renderer = new RolloverItemRenderer();

            RolloverItem item = this.CreateRolloverItem(
                this.toolStrip1,
                "RolloverItem on ToolStrip",
                this.Font,
                infoIconKey,
                TextImageRelation.ImageBeforeText,
                exclIconKey);

            this.toolStrip1.Items.Add(item);

            item = this.CreateRolloverItem(
                this.toolStrip1,
                "RolloverItem on ToolStrip",
                this.Font,
                infoIconKey,
                TextImageRelation.ImageBeforeText,
                exclIconKey);

            this.toolStrip1.Items.Add(item);
        }

        private void InitializeContextMenu()
        {
            Font f = new System.Drawing.Font(
                "Arial",
                18f,
                FontStyle.Bold);

            ContextMenuStrip cms = new ContextMenuStrip();
            this.InitializeImageList(cms);

            cms.Renderer = new RolloverItemRenderer();
            cms.AutoSize = true;
            cms.ShowCheckMargin = false;
            cms.ShowImageMargin = false;

            RolloverItem item = this.CreateRolloverItem(
                cms,
                "RolloverItem on ContextMenuStrip",
                f,
                handIconKey,
                TextImageRelation.ImageBeforeText,
                exclIconKey);

            cms.Items.Add(item);

            item = this.CreateRolloverItem(
                cms,
                "Another RolloverItem on ContextMenuStrip",
                f,
                questionIconKey,
                TextImageRelation.ImageBeforeText,
                exclIconKey);

            cms.Items.Add(item);

            item = this.CreateRolloverItem(
                cms,
                "And another RolloverItem on ContextMenuStrip",
                f,
                warningIconKey,
                TextImageRelation.ImageBeforeText,
                exclIconKey);

            cms.Items.Add(item);

            cms.Closing += new ToolStripDropDownClosingEventHandler(cms_Closing);

            this.button1.ContextMenuStrip = cms;
        }

        // This method handles the ContextMenuStrip 
        // control's Closing event. It prevents the 
        // RolloverItem from closing the drop-down  
        // when the item is clicked.
        void cms_Closing(object sender, ToolStripDropDownClosingEventArgs e)
        {
            if (e.CloseReason == ToolStripDropDownCloseReason.ItemClicked)
            {
                e.Cancel = true;
            }
        }

        // This method handles the Click event for the button.
        // it selects the first item in the ToolStrip control
        // by using the ToolStripITem.Select method.
        private void button1_Click(object sender, EventArgs e)
        {
            RolloverItem item = this.toolStrip1.Items[0] as RolloverItem;

            if (item != null)
            {
                item.Select();

                this.Invalidate();
            }
        }

        // 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;
        }

        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows Form Designer generated code

        private void InitializeComponent()
        {
            this.toolStrip1 = new System.Windows.Forms.ToolStrip();
            this.button1 = new System.Windows.Forms.Button();
            this.SuspendLayout();
            // 
            // toolStrip1
            // 
            this.toolStrip1.AllowItemReorder = true;
            this.toolStrip1.Location = new System.Drawing.Point(0, 0);
            this.toolStrip1.Name = "toolStrip1";
            this.toolStrip1.Size = new System.Drawing.Size(845, 25);
            this.toolStrip1.TabIndex = 0;
            this.toolStrip1.Text = "toolStrip1";
            // 
            // button1
            // 
            this.button1.Location = new System.Drawing.Point(12, 100);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(86, 23);
            this.button1.TabIndex = 1;
            this.button1.Text = "Click to select";
            this.button1.UseVisualStyleBackColor = true;
            this.button1.Click += new System.EventHandler(this.button1_Click);
            // 
            // RolloverItemTestForm
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 14F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.AutoSize = true;
            this.ClientSize = new System.Drawing.Size(845, 282);
            this.Controls.Add(this.button1);
            this.Controls.Add(this.toolStrip1);
            this.Font = new System.Drawing.Font("Arial", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
            this.Name = "RolloverItemTestForm";
            this.Text = "Form1";
            this.ResumeLayout(false);
            this.PerformLayout();

        }

        #endregion
    }

    static class Program
    {   
        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new RolloverItemTestForm());
        }
    }

}
Option Strict On
Option Explicit On

Imports System
Imports System.Collections.Generic
Imports System.ComponentModel
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms

' This class implements a ToolStripItem that highlights
' its border and text when the mouse enters its
' client rectangle. It has a clickable state which is
' exposed through the Clicked property and displayed
' by highlighting or graying out the item's image. 
Public Class RolloverItem
    Inherits ToolStripItem

   Private clickedValue As Boolean = False
   Private rolloverValue As Boolean = False
   
   Private imageRect As Rectangle
   Private textRect As Rectangle
   
   ' For brevity, this implementation limits the possible 
   ' TextDirection values to ToolStripTextDirection.Horizontal. 
   Public Overrides Property TextDirection() As ToolStripTextDirection
      Get
         Return MyBase.TextDirection
      End Get
      Set
         If value = ToolStripTextDirection.Horizontal Then
            MyBase.TextDirection = value
         Else
                Throw New ArgumentException( _
                "RolloverItem supports only horizontal text.")
         End If
      End Set
   End Property
   
   ' For brevity, this implementation limits the possible 
   ' TextImageRelation values to ImageBeforeText and TextBeforeImage. 
   Public Shadows Property TextImageRelation() As TextImageRelation
      Get
         Return MyBase.TextImageRelation
      End Get
      
      Set
            If Value = TextImageRelation.ImageBeforeText OrElse _
               Value = TextImageRelation.TextBeforeImage Then
                MyBase.TextImageRelation = Value
            Else
                Throw New ArgumentException("Unsupported TextImageRelation value.")
            End If
      End Set
   End Property
   
   ' This property returns true if the mouse is 
   ' inside the client rectangle.
   Public ReadOnly Property Rollover() As Boolean
      Get
         Return Me.rolloverValue
      End Get
    End Property

   ' This property returns true if the item 
   ' has been toggled into the clicked state.
   ' Clicking again toggles it to the 
   ' unclicked state.
   Public ReadOnly Property Clicked() As Boolean
      Get
         Return Me.clickedValue
      End Get
   End Property
   
   ' The method defines the behavior of the Click event.
   ' It simply toggles the state of the clickedValue field.
   Protected Overrides Sub OnClick(e As EventArgs)
      MyBase.OnClick(e)
      
        Me.clickedValue = Me.clickedValue Xor True
    End Sub

   ' The method defines the behavior of the DoubleClick 
   ' event. It shows a MessageBox with the item's text.
   Protected Overrides Sub OnDoubleClick(e As EventArgs)
      MyBase.OnDoubleClick(e)
      
      Dim msg As String = String.Format("Item: {0}", Me.Text)
      
      MessageBox.Show(msg)
    End Sub

   ' This method defines the behavior of the MouseEnter event.
   ' It sets the state of the rolloverValue field to true and
   ' tells the control to repaint.
   Protected Overrides Sub OnMouseEnter(e As EventArgs)
      MyBase.OnMouseEnter(e)
      
      Me.rolloverValue = True
      
      Me.Invalidate()
    End Sub
   
   ' This method defines the behavior of the MouseLeave event.
   ' It sets the state of the rolloverValue field to false and
   ' tells the control to repaint.
   Protected Overrides Sub OnMouseLeave(e As EventArgs)
      MyBase.OnMouseLeave(e)
      
      Me.rolloverValue = False
      
      Me.Invalidate()
    End Sub
   
   ' 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

   ' This utility method computes the layout of the 
   ' RolloverItem control's image area and the text area.
   ' For brevity, only the following settings are 
   ' supported:
   '
   ' ToolStripTextDirection.Horizontal
   ' TextImageRelation.ImageBeforeText 
   ' TextImageRelation.ImageBeforeText
   ' 
   ' It would not be difficult to support vertical text
   ' directions and other image/text relationships.
   Private Sub ComputeImageAndTextLayout()
      Dim cr As Rectangle = MyBase.ContentRectangle
      Dim img As Image = MyBase.Owner.ImageList.Images(MyBase.ImageKey)
      
      ' Compute the center of the item's ContentRectangle.
        Dim centerY As Integer = CInt((cr.Height - img.Height) / 2)
      
      ' Find the dimensions of the image and the text 
      ' areas of the item. The text occupies the space 
      ' not filled by the image. 
        If MyBase.TextImageRelation = _
        TextImageRelation.ImageBeforeText AndAlso _
        MyBase.TextDirection = ToolStripTextDirection.Horizontal Then

            imageRect = New Rectangle( _
            MyBase.ContentRectangle.Left, _
            centerY, _
            MyBase.Image.Width, _
            MyBase.Image.Height)

            textRect = New Rectangle( _
            imageRect.Width, _
            MyBase.ContentRectangle.Top, _
            MyBase.ContentRectangle.Width - imageRect.Width, _
            MyBase.ContentRectangle.Height)

        ElseIf MyBase.TextImageRelation = _
        TextImageRelation.TextBeforeImage AndAlso _
        MyBase.TextDirection = ToolStripTextDirection.Horizontal Then

            imageRect = New Rectangle( _
            MyBase.ContentRectangle.Right - MyBase.Image.Width, _
            centerY, _
            MyBase.Image.Width, _
            MyBase.Image.Height)

            textRect = New Rectangle( _
            MyBase.ContentRectangle.Left, _
            MyBase.ContentRectangle.Top, _
            imageRect.X, _
            MyBase.ContentRectangle.Bottom)

        End If
    End Sub
End Class

' This is the custom renderer for the RolloverItem control.
' It draws a border around the item when the mouse is
' in the item's client area. It also draws the item's image
' in an inactive state (grayed out) until the user clicks
' the item to toggle its "clicked" state.
Friend Class RolloverItemRenderer
    Inherits ToolStripSystemRenderer

    Protected Overrides Sub OnRenderItemImage(ByVal e As ToolStripItemImageRenderEventArgs)
        MyBase.OnRenderItemImage(e)

        Dim item As RolloverItem = CType(e.Item, RolloverItem)

        ' If the ToolSTripItem is of type RolloverItem, 
        ' perform custom rendering for the image.
        If (item IsNot Nothing) Then
            If item.Clicked Then
                ' The item is in the clicked state, so 
                ' draw the image as usual.
                e.Graphics.DrawImage(e.Image, e.ImageRectangle.X, e.ImageRectangle.Y)
            Else
                ' In the unclicked state, gray out the image.
                ControlPaint.DrawImageDisabled(e.Graphics, e.Image, e.ImageRectangle.X, e.ImageRectangle.Y, item.BackColor)
            End If
        End If
    End Sub

    ' This method defines the behavior for rendering the
    ' background of a ToolStripItem. If the item is a
    ' RolloverItem, it paints the item's BackgroundImage 
    ' centered in the client area. If the mouse is in the 
    ' item's client area, a border is drawn around it.
    ' If the item is on a drop-down or if it is on the
    ' overflow, a gradient is painted in the background.
    Protected Overrides Sub OnRenderItemBackground(ByVal e As ToolStripItemRenderEventArgs)
        MyBase.OnRenderItemBackground(e)

        Dim item As RolloverItem = CType(e.Item, RolloverItem)

        ' If the ToolSTripItem is of type RolloverItem, 
        ' perform custom rendering for the background.
        If (item IsNot Nothing) Then
            If item.Placement = ToolStripItemPlacement.Overflow OrElse item.IsOnDropDown Then
                Dim b As New LinearGradientBrush(item.ContentRectangle, Color.Salmon, Color.DarkRed, 0.0F, False)
                Try
                    e.Graphics.FillRectangle(b, item.ContentRectangle)
                Finally
                    b.Dispose()
                End Try
            End If

            ' The RolloverItem control only supports 
            ' the ImageLayout.Center setting for the
            ' BackgroundImage property.
            If item.BackgroundImageLayout = ImageLayout.Center Then
                ' Get references to the item's ContentRectangle
                ' and BackgroundImage, for convenience.
                Dim cr As Rectangle = item.ContentRectangle
                Dim bgi As Image = item.BackgroundImage

                ' Compute the center of the item's ContentRectangle.
                Dim centerX As Integer = CInt((cr.Width - bgi.Width) / 2)
                Dim centerY As Integer = CInt((cr.Height - bgi.Height) / 2)

                ' If the item is selected, draw the background
                ' image as usual. Otherwise, draw it as disabled.
                If item.Selected Then
                    e.Graphics.DrawImage(bgi, centerX, centerY)
                Else
                    ControlPaint.DrawImageDisabled(e.Graphics, bgi, centerX, centerY, item.BackColor)
                End If
            End If

            ' If the item is in the rollover state, 
            ' draw a border around it.
            If item.Rollover Then
                ControlPaint.DrawFocusRectangle(e.Graphics, item.ContentRectangle)
            End If
        End If
    End Sub

End Class

' This form tests various features of the RolloverItem
' control. RolloverItem conrols are created and added
' to the form's ToolStrip. They are also created and 
' added to a button's ContextMenuStrip. The behavior
' of the RolloverItem control differs depending on 
' the type of parent control.

Public Class RolloverItemTestForm
   Inherits Form
   Private toolStrip1 As System.Windows.Forms.ToolStrip
   Private WithEvents button1 As System.Windows.Forms.Button
   
   Private infoIconKey As String = "Information icon"
   Private handIconKey As String = "Hand icon"
   Private exclIconKey As String = "Exclamation icon"
   Private questionIconKey As String = "Question icon"
   Private warningIconKey As String = "Warning icon "
   
   Private components As System.ComponentModel.IContainer = Nothing
   
   
   Public Sub New()
      InitializeComponent()
      
      ' Set up the form's ToolStrip control.
      InitializeToolStrip()
      
      ' Set up the ContextMenuStrip for the button.
      InitializeContextMenu()
    End Sub
   
   
   ' This utility method initializes the ToolStrip control's 
   ' image list. For convenience, icons from the SystemIcons 
   ' class are used for this demonstration, but any images
   ' could be used.
   Private Sub InitializeImageList(ts As ToolStrip)
      If ts.ImageList Is Nothing Then
         ts.ImageList = New ImageList()
         ts.ImageList.ImageSize = SystemIcons.Exclamation.Size
         
         ts.ImageList.Images.Add(Me.infoIconKey, SystemIcons.Information)
         
         ts.ImageList.Images.Add(Me.handIconKey, SystemIcons.Hand)
         
         ts.ImageList.Images.Add(Me.exclIconKey, SystemIcons.Exclamation)
         
         ts.ImageList.Images.Add(Me.questionIconKey, SystemIcons.Question)
         
         ts.ImageList.Images.Add(Me.warningIconKey, SystemIcons.Warning)
      End If
    End Sub
   
   
   Private Sub InitializeToolStrip()
      Me.InitializeImageList(Me.toolStrip1)
      
      Me.toolStrip1.Renderer = New RolloverItemRenderer()
      
      Dim item As RolloverItem = Me.CreateRolloverItem(Me.toolStrip1, "RolloverItem on ToolStrip", Me.Font, infoIconKey, TextImageRelation.ImageBeforeText, exclIconKey)
      
      Me.toolStrip1.Items.Add(item)
      
      item = Me.CreateRolloverItem(Me.toolStrip1, "RolloverItem on ToolStrip", Me.Font, infoIconKey, TextImageRelation.ImageBeforeText, exclIconKey)
      
      Me.toolStrip1.Items.Add(item)
    End Sub
   
   
   Private Sub InitializeContextMenu()
        Dim f As New System.Drawing.Font("Arial", 18.0F, FontStyle.Bold)
      
      Dim cms As New ContextMenuStrip()
      Me.InitializeImageList(cms)
      
      cms.Renderer = New RolloverItemRenderer()
      cms.AutoSize = True
      cms.ShowCheckMargin = False
      cms.ShowImageMargin = False
      
        Dim item As RolloverItem = Me.CreateRolloverItem( _
        cms, _
        "RolloverItem on ContextMenuStrip", _
        f, _
        handIconKey, _
        TextImageRelation.ImageBeforeText, _
        exclIconKey)
      
      cms.Items.Add(item)
      
        item = Me.CreateRolloverItem( _
        cms, _
        "Another RolloverItem on ContextMenuStrip", _
        f, _
        questionIconKey, _
        TextImageRelation.ImageBeforeText, _
        exclIconKey)
      
      cms.Items.Add(item)
      
        item = Me.CreateRolloverItem( _
        cms, _
        "And another RolloverItem on ContextMenuStrip", _
        CType(f, Drawing.Font), _
        warningIconKey, _
        TextImageRelation.ImageBeforeText, _
        exclIconKey)
      
      cms.Items.Add(item)
      
      AddHandler cms.Closing, AddressOf cms_Closing
      
      Me.button1.ContextMenuStrip = cms
    End Sub
   
   
   ' This method handles the ContextMenuStrip 
   ' control's Closing event. It prevents the 
   ' RolloverItem from closing the drop-down  
   ' when the item is clicked.
   Private Sub cms_Closing(sender As Object, e As ToolStripDropDownClosingEventArgs)
      If e.CloseReason = ToolStripDropDownCloseReason.ItemClicked Then
         e.Cancel = True
      End If
    End Sub
   
   
   ' This method handles the Click event for the button.
   ' it selects the first item in the ToolStrip control
   ' by using the ToolStripITem.Select method.
   Private Sub button1_Click(sender As Object, e As EventArgs) Handles button1.Click
        Dim item As RolloverItem = CType(Me.toolStrip1.Items(0), RolloverItem)
      
      If (item IsNot Nothing) Then
         item.Select()
         
         Me.Invalidate()
      End If
    End Sub

   ' 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

   Protected Overrides Sub Dispose(disposing As Boolean)
      If disposing AndAlso (components IsNot Nothing) Then
         components.Dispose()
      End If
      MyBase.Dispose(disposing)
    End Sub
   
   #Region "Windows Form Designer generated code"
   
   Private Sub InitializeComponent()
      Me.toolStrip1 = New System.Windows.Forms.ToolStrip()
      Me.button1 = New System.Windows.Forms.Button()
      Me.SuspendLayout()
      ' 
      ' toolStrip1
      ' 
      Me.toolStrip1.AllowItemReorder = True
      Me.toolStrip1.Location = New System.Drawing.Point(0, 0)
      Me.toolStrip1.Name = "toolStrip1"
      Me.toolStrip1.Size = New System.Drawing.Size(845, 25)
      Me.toolStrip1.TabIndex = 0
      Me.toolStrip1.Text = "toolStrip1"
      ' 
      ' button1
      ' 
      Me.button1.Location = New System.Drawing.Point(12, 100)
      Me.button1.Name = "button1"
      Me.button1.Size = New System.Drawing.Size(86, 23)
      Me.button1.TabIndex = 1
      Me.button1.Text = "Click to select"
      Me.button1.UseVisualStyleBackColor = True
      ' 
      ' RolloverItemTestForm
      ' 
      Me.AutoScaleDimensions = New System.Drawing.SizeF(6F, 14F)
      Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
      Me.AutoSize = True
      Me.ClientSize = New System.Drawing.Size(845, 282)
      Me.Controls.Add(button1)
      Me.Controls.Add(toolStrip1)
        Me.Font = New System.Drawing.Font("Arial", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, 0)
      Me.Name = "RolloverItemTestForm"
      Me.Text = "Form1"
      Me.ResumeLayout(False)
      Me.PerformLayout()
    End Sub
   
#End Region

End Class


Public Class Program

    <STAThread()> _
    Shared Sub Main()
        Application.EnableVisualStyles()
        Application.SetCompatibleTextRenderingDefault(False)
        Application.Run(New RolloverItemTestForm())
    End Sub
End Class

Commenti

Oggetto ToolStripItem è un elemento, ad esempio un pulsante, casella combinata, casella di testo o etichetta che può essere contenuta in un ToolStrip controllo o un ToolStripDropDown controllo, che è simile a un menu di scelta rapida di Windows.A ToolStripItem is an element such as a button, combo box, text box, or label that can be contained in a ToolStrip control or a ToolStripDropDown control, which is similar to a Windows shortcut menu. Il ToolStrip classe gestisce il disegno e tastiera e mouse, tra cui trascinamento e rilascio di input, per i seguenti elementi di input e di ToolStripItem classe gestisce gli eventi e il layout di elementi stessi.The ToolStrip class manages the painting and keyboard and mouse input, including drag-and-drop input, for these elements, and the ToolStripItem class manages events and layout within the elements themselves.

ToolStripItem classi di ereditare direttamente da ToolStripItem, o ereditare indirettamente ToolStripItem attraverso ToolStripControlHost o ToolStripDropDownItem.ToolStripItem classes either inherit directly from ToolStripItem, or they inherit indirectly from ToolStripItem through ToolStripControlHost or ToolStripDropDownItem.

ToolStripItem i controlli devono essere contenuti in un ToolStrip, MenuStrip, StatusStrip, o ContextMenuStrip e non possono essere aggiunti direttamente a un form.ToolStripItem controls must be contained in a ToolStrip, MenuStrip, StatusStrip, or ContextMenuStrip and cannot be added directly to a form. Le varie classi di contenitori sono progettate per contenere un sottoinsieme appropriato di ToolStripItem controlli.The various container classes are designed to contain an appropriate subset of ToolStripItem controls.

Nota un determinato ToolStripItem non può contenere più elementi padre ToolStrip.Note A given ToolStripItem cannot have more than one parent ToolStrip. È necessario copiare il il ToolStripItem e aggiungerlo a altro ToolStrip controlli.You must copy of the ToolStripItem and add it to other ToolStrip controls.

Nella tabella seguente mostra gli elementi da cui deriva il ToolStripItem classe e che pertanto possono essere ospitati in un ToolStrip o ToolStripDropDown.The following table shows the elements that derive from the ToolStripItem class and which therefore can be hosted in a ToolStrip or ToolStripDropDown.

ElementoElement DescrizioneDescription
ToolStripButton Pulsante della barra degli strumenti che supporta le immagini e testo.A toolbar button that supports images and text.
ToolStripLabel Un'etichetta di testo in genere usata in una barra di stato o ToolStrip come commento o del titolo.A text label typically used in a status bar or ToolStrip as a comment or title.
ToolStripSeparator Uno spazio non selezionabile o lo spazio con una barra verticale che visivamente gli elementi raggruppati.A non-selectable space or space with a vertical bar that visually groups elements.
ToolStripControlHost Oggetto ToolStripItem che ospita una ToolStripComboBox, ToolStripTextBox, ToolStripProgressBar, gli altri controlli Windows Form o controlli personalizzati.A ToolStripItem that hosts a ToolStripComboBox, ToolStripTextBox, ToolStripProgressBar, other Windows Forms controls, or custom controls.

Oggetto ToolStripComboBox è una casella di testo in cui l'utente può immettere testo, unitamente a un elenco da cui l'utente può selezionare il testo per riempire la casella di testo.A ToolStripComboBox is a text box in which the user can enter text, along with a list from which the user can select text to fill the text box.

Oggetto ToolStripTextBox consente all'utente di immettere testo.A ToolStripTextBox enables the user to enter text.

Oggetto ToolStripProgressBar rappresenta un controllo indicatore di stato Windows contenuto in un StatusStrip.A ToolStripProgressBar represents a Windows progress bar control contained in a StatusStrip.
ToolStripDropDownItem Oggetto ToolStripItem che ospita una ToolStripMenuItem, ToolStripSplitButton, e ToolStripDropDownButton.A ToolStripItem that hosts a ToolStripMenuItem, ToolStripSplitButton, and ToolStripDropDownButton.

Oggetto ToolStripMenuItem è un'opzione selezionabile visualizzata in un menu o un menu di scelta rapida.A ToolStripMenuItem is a selectable option displayed on a menu or context menu.

Oggetto ToolStripSplitButton è una combinazione di un pulsante normale e un pulsante a discesa.A ToolStripSplitButton is a combination of a regular button and a drop-down button.

Oggetto ToolStripDropDownButton è un pulsante che supporta la funzionalità di elenco a discesa.A ToolStripDropDownButton is a button that supports drop-down functionality.
ToolStripStatusLabel Un pannello in un StatusStrip controllo.A panel in a StatusStrip control.

Costruttori

ToolStripItem() ToolStripItem() ToolStripItem() ToolStripItem()

Inizializza una nuova istanza della classe ToolStripItem.Initializes a new instance of the ToolStripItem class.

ToolStripItem(String, Image, EventHandler) ToolStripItem(String, Image, EventHandler) ToolStripItem(String, Image, EventHandler) ToolStripItem(String, Image, EventHandler)

Inizializza una nuova istanza della classe ToolStripItem con il nome, l'immagine e il gestore eventi specificati.Initializes a new instance of the ToolStripItem class with the specified name, image, and event handler.

ToolStripItem(String, Image, EventHandler, String) ToolStripItem(String, Image, EventHandler, String) ToolStripItem(String, Image, EventHandler, String) ToolStripItem(String, Image, EventHandler, String)

Inizializza una nuova istanza della classe ToolStripItem con il testo, l'immagine, il gestore eventi e il nome specificati.Initializes a new instance of the ToolStripItem class with the specified display text, image, event handler, and name.

Proprietà

AccessibilityObject AccessibilityObject AccessibilityObject AccessibilityObject

Ottiene l'oggetto AccessibleObject assegnato al controllo.Gets the AccessibleObject assigned to the control.

AccessibleDefaultActionDescription AccessibleDefaultActionDescription AccessibleDefaultActionDescription AccessibleDefaultActionDescription

Ottiene o imposta la descrizione dell'azione predefinita del controllo usata dalle applicazioni client di accessibilità.Gets or sets the default action description of the control for use by accessibility client applications.

AccessibleDescription AccessibleDescription AccessibleDescription AccessibleDescription

Ottiene o imposta la descrizione che verrà visualizzata alle applicazioni client di accessibilità.Gets or sets the description that will be reported to accessibility client applications.

AccessibleName AccessibleName AccessibleName AccessibleName

Ottiene o imposta il nome del controllo usato dalle applicazioni client di accessibilità.Gets or sets the name of the control for use by accessibility client applications.

AccessibleRole AccessibleRole AccessibleRole AccessibleRole

Ottiene o imposta il ruolo accessibile del controllo, che specifica il tipo di elemento dell'interfaccia utente del controllo.Gets or sets the accessible role of the control, which specifies the type of user interface element of the control.

Alignment Alignment Alignment Alignment

Ottiene o imposta un valore che indica se l'elemento deve essere allineato verso l'inizio o verso la fine dell'oggetto ToolStrip.Gets or sets a value indicating whether the item aligns towards the beginning or end of the ToolStrip.

AllowDrop AllowDrop AllowDrop AllowDrop

Ottiene o imposta un valore che indica se le operazioni di trascinamento e rilascio e ridisposizione degli elementi devono essere gestite tramite eventi implementati dallo sviluppatore.Gets or sets a value indicating whether drag-and-drop and item reordering are handled through events that you implement.

Anchor Anchor Anchor Anchor

Ottiene o imposta i bordi del contenitore a cui è associato un oggetto ToolStripItem e determina la modalità con cui un oggetto ToolStripItem viene ridimensionato con il relativo elemento padre.Gets or sets the edges of the container to which a ToolStripItem is bound and determines how a ToolStripItem is resized with its parent.

AutoSize AutoSize AutoSize AutoSize

Ottiene o imposta un valore che indica se l'elemento deve essere ridimensionato automaticamente.Gets or sets a value indicating whether the item is automatically sized.

AutoToolTip AutoToolTip AutoToolTip AutoToolTip

Ottiene o imposta un valore che indica se usare la proprietà Text o ToolTipText per la descrizione comando di ToolStripItem ToolTip.Gets or sets a value indicating whether to use the Text property or the ToolTipText property for the ToolStripItem ToolTip.

Available Available Available Available

Ottiene o imposta un valore che indica se l'oggetto ToolStripItem deve essere posizionato su ToolStrip.Gets or sets a value indicating whether the ToolStripItem should be placed on a ToolStrip.

BackColor BackColor BackColor BackColor

Ottiene o imposta il colore di sfondo dell'elemento.Gets or sets the background color for the item.

BackgroundImage BackgroundImage BackgroundImage BackgroundImage

Ottiene o imposta l'immagine di sfondo visualizzata nell'elemento.Gets or sets the background image displayed in the item.

BackgroundImageLayout BackgroundImageLayout BackgroundImageLayout BackgroundImageLayout

Ottiene o imposta il layout dell'immagine di sfondo usato per ToolStripItem.Gets or sets the background image layout used for the ToolStripItem.

Bounds Bounds Bounds Bounds

Ottiene le dimensioni e la posizione dell'elemento.Gets the size and location of the item.

CanRaiseEvents CanRaiseEvents CanRaiseEvents CanRaiseEvents

Ottiene un valore che indica se il componente può generare un evento.Gets a value indicating whether the component can raise an event.

(Inherited from Component)
CanSelect CanSelect CanSelect CanSelect

Ottiene un valore che indica se l'elemento può essere selezionato.Gets a value indicating whether the item can be selected.

Container Container Container Container

Ottiene il IContainer che contiene il Component.Gets the IContainer that contains the Component.

(Inherited from Component)
ContentRectangle ContentRectangle ContentRectangle ContentRectangle

Ottiene l'area in cui il contenuto, come testo e icone, può essere posizionato all'interno di un oggetto ToolStripItem senza sovrascrivere i bordi dello sfondo.Gets the area where content, such as text and icons, can be placed within a ToolStripItem without overwriting background borders.

DefaultAutoToolTip DefaultAutoToolTip DefaultAutoToolTip DefaultAutoToolTip

Ottiene un valore che indica se visualizzare l'oggetto ToolTip specificato come valore predefinito.Gets a value indicating whether to display the ToolTip that is defined as the default.

DefaultDisplayStyle DefaultDisplayStyle DefaultDisplayStyle DefaultDisplayStyle

Ottiene un valore che indica cosa è visualizzato su ToolStripItem.Gets a value indicating what is displayed on the ToolStripItem.

DefaultMargin DefaultMargin DefaultMargin DefaultMargin

Ottiene il margine predefinito di un elemento.Gets the default margin of an item.

DefaultPadding DefaultPadding DefaultPadding DefaultPadding

Ottiene le caratteristiche di spaziatura interna dell'elemento.Gets the internal spacing characteristics of the item.

DefaultSize DefaultSize DefaultSize DefaultSize

Ottiene le dimensioni predefinite dell'elemento.Gets the default size of the item.

DesignMode DesignMode DesignMode DesignMode

Ottiene un valore che indica se il Component si trova in modalità progettazione.Gets a value that indicates whether the Component is currently in design mode.

(Inherited from Component)
DismissWhenClicked DismissWhenClicked DismissWhenClicked DismissWhenClicked

Ottiene un valore che indica se gli elementi di un oggetto ToolStripDropDown vengono nascosti dopo che si è fatto clic su di essi.Gets a value indicating whether items on a ToolStripDropDown are hidden after they are clicked.

DisplayStyle DisplayStyle DisplayStyle DisplayStyle

Ottiene o imposta se visualizzare o meno testo e immagini su ToolStripItem.Gets or sets whether text and images are displayed on a ToolStripItem.

Dock Dock Dock Dock

Ottiene o imposta i bordi di ToolStripItem ancorati al relativo controllo padre e determina la modalità con cui un oggetto ToolStripItem viene ridimensionato con il relativo elemento padre.Gets or sets which ToolStripItem borders are docked to its parent control and determines how a ToolStripItem is resized with its parent.

DoubleClickEnabled DoubleClickEnabled DoubleClickEnabled DoubleClickEnabled

Ottiene o imposta un valore che indica se l'oggetto ToolStripItem può essere attivato facendo doppio clic con il mouse.Gets or sets a value indicating whether the ToolStripItem can be activated by double-clicking the mouse.

Enabled Enabled Enabled Enabled

Ottiene o imposta un valore che indica se il controllo padre di ToolStripItem è abilitato.Gets or sets a value indicating whether the parent control of the ToolStripItem is enabled.

Events Events Events Events

Ottiene l'elenco dei gestori eventi allegati a questo Component.Gets the list of event handlers that are attached to this Component.

(Inherited from Component)
Font Font Font Font

Ottiene o imposta il tipo di carattere del testo visualizzato dall'elemento.Gets or sets the font of the text displayed by the item.

ForeColor ForeColor ForeColor ForeColor

Ottiene o imposta il colore primo piano dell'elemento.Gets or sets the foreground color of the item.

Height Height Height Height

Ottiene o imposta l'altezza in pixel di un oggetto ToolStripItem.Gets or sets the height, in pixels, of a ToolStripItem.

Image Image Image Image

Ottiene o imposta l'immagine visualizzata in un oggetto ToolStripItem.Gets or sets the image that is displayed on a ToolStripItem.

ImageAlign ImageAlign ImageAlign ImageAlign

Ottiene o imposta l'allineamento dell'immagine su ToolStripItem.Gets or sets the alignment of the image on a ToolStripItem.

ImageIndex ImageIndex ImageIndex ImageIndex

Ottiene o imposta il valore di indice dell'immagine visualizzata sull'elemento.Gets or sets the index value of the image that is displayed on the item.

ImageKey ImageKey ImageKey ImageKey

Ottiene o imposta la funzione di accesso alla chiave per l'immagine contenuta in ImageList visualizzata su ToolStripItem.Gets or sets the key accessor for the image in the ImageList that is displayed on a ToolStripItem.

ImageScaling ImageScaling ImageScaling ImageScaling

Ottiene o imposta un valore che indica se un'immagine su ToolStripItem viene automaticamente ridimensionata per adattarla a un contenitore.Gets or sets a value indicating whether an image on a ToolStripItem is automatically resized to fit in a container.

ImageTransparentColor ImageTransparentColor ImageTransparentColor ImageTransparentColor

Ottiene o imposta il colore da considerare trasparente in un'immagine di ToolStripItem.Gets or sets the color to treat as transparent in a ToolStripItem image.

IsDisposed IsDisposed IsDisposed IsDisposed

Ottiene un valore che indica se l'oggetto è stato eliminato.Gets a value indicating whether the object has been disposed of.

IsOnDropDown IsOnDropDown IsOnDropDown IsOnDropDown

Ottiene un valore che indica se il contenitore dell'oggetto Control corrente è ToolStripDropDown.Gets a value indicating whether the container of the current Control is a ToolStripDropDown.

IsOnOverflow IsOnOverflow IsOnOverflow IsOnOverflow

Ottiene un valore che indica se la proprietà Placement è impostata su Overflow.Gets a value indicating whether the Placement property is set to Overflow.

Margin Margin Margin Margin

Ottiene o imposta lo spazio tra l'elemento e gli elementi adiacenti.Gets or sets the space between the item and adjacent items.

MergeAction MergeAction MergeAction MergeAction

Ottiene o imposta il modo in cui i menu figlio vengono uniti ai menu padre.Gets or sets how child menus are merged with parent menus.

MergeIndex MergeIndex MergeIndex MergeIndex

Ottiene o imposta la posizione di un elemento unito all'interno dell'oggetto ToolStrip corrente.Gets or sets the position of a merged item within the current ToolStrip.

Name Name Name Name

Ottiene o imposta il nome dell'elemento.Gets or sets the name of the item.

Overflow Overflow Overflow Overflow

Ottiene o imposta l'elemento associato a ToolStrip o a ToolStripOverflowButton oppure che può spostarsi tra i due.Gets or sets whether the item is attached to the ToolStrip or ToolStripOverflowButton or can float between the two.

Owner Owner Owner Owner

Ottiene o imposta il proprietario dell'elemento.Gets or sets the owner of this item.

OwnerItem OwnerItem OwnerItem OwnerItem

Ottiene l'elemento padre ToolStripItem di ToolStripItem.Gets the parent ToolStripItem of this ToolStripItem.

Padding Padding Padding Padding

Ottiene o imposta la spaziatura interna, in pixel, tra il contenuto dell'elemento e i relativi bordi.Gets or sets the internal spacing, in pixels, between the item's contents and its edges.

Parent Parent Parent Parent

Ottiene o imposta il contenitore padre di ToolStripItem.Gets or sets the parent container of the ToolStripItem.

Placement Placement Placement Placement

Ottiene il layout corrente dell'elemento.Gets the current layout of the item.

Pressed Pressed Pressed Pressed

Ottiene un valore che indica se lo stato dell'elemento è premuto.Gets a value indicating whether the state of the item is pressed.

RightToLeft RightToLeft RightToLeft RightToLeft

Ottiene o imposta un valore che indica se gli elementi devono essere posizionati da destra a sinistra e il testo deve essere scritto da destra a sinistra.Gets or sets a value indicating whether items are to be placed from right to left and text is to be written from right to left.

RightToLeftAutoMirrorImage RightToLeftAutoMirrorImage RightToLeftAutoMirrorImage RightToLeftAutoMirrorImage

Crea automaticamente l'immagine speculare di ToolStripItem quando la proprietà RightToLeft è impostata su Yes.Mirrors automatically the ToolStripItem image when the RightToLeft property is set to Yes.

Selected Selected Selected Selected

Ottiene un valore che indica se l'elemento è selezionato.Gets a value indicating whether the item is selected.

ShowKeyboardCues ShowKeyboardCues ShowKeyboardCues ShowKeyboardCues

Ottiene un valore che indica se mostrare o nascondere i tasti di scelta rapida.Gets a value indicating whether to show or hide shortcut keys.

Site Site Site Site

Ottiene o imposta l'oggetto ISite di Component.Gets or sets the ISite of the Component.

(Inherited from Component)
Size Size Size Size

Ottiene o imposta le dimensioni dell'elemento.Gets or sets the size of the item.

Tag Tag Tag Tag

Ottiene o imposta l'oggetto che contiene i dati sull'elemento.Gets or sets the object that contains data about the item.

Text Text Text Text

Ottiene o imposta il testo che deve essere visualizzato sull'elemento.Gets or sets the text that is to be displayed on the item.

TextAlign TextAlign TextAlign TextAlign

Ottiene o imposta l'allineamento del testo su ToolStripLabel.Gets or sets the alignment of the text on a ToolStripLabel.

TextDirection TextDirection TextDirection TextDirection

Ottiene l'orientamento del testo usato su ToolStripItem.Gets the orientation of text used on a ToolStripItem.

TextImageRelation TextImageRelation TextImageRelation TextImageRelation

Ottiene o imposta la posizione del testo e dell'immagine di ToolStripItem relativamente l'uno all'altra.Gets or sets the position of ToolStripItem text and image relative to each other.

ToolTipText ToolTipText ToolTipText ToolTipText

Ottiene o imposta il testo visualizzato come ToolTip per un controllo.Gets or sets the text that appears as a ToolTip for a control.

Visible Visible Visible Visible

Ottiene o imposta un valore che indica se l'elemento è visualizzato.Gets or sets a value indicating whether the item is displayed.

Width Width Width Width

Ottiene o imposta la larghezza in pixel di ToolStripItem.Gets or sets the width in pixels of a ToolStripItem.

Metodi

CreateAccessibilityInstance() CreateAccessibilityInstance() CreateAccessibilityInstance() CreateAccessibilityInstance()

Crea un nuovo oggetto di accessibilità per ToolStripItem.Creates a new accessibility object for the ToolStripItem.

CreateObjRef(Type) CreateObjRef(Type) CreateObjRef(Type) CreateObjRef(Type)

Consente di creare un oggetto che contiene tutte le informazioni rilevanti necessarie per la generazione del proxy utilizzato per effettuare la comunicazione con un oggetto remoto.Creates an object that contains all the relevant information required to generate a proxy used to communicate with a remote object.

(Inherited from MarshalByRefObject)
Dispose() Dispose() Dispose() Dispose()

Rilascia tutte le risorse usate da Component.Releases all resources used by the Component.

(Inherited from Component)
Dispose(Boolean) Dispose(Boolean) Dispose(Boolean) Dispose(Boolean)

Rilascia le risorse non gestite usate da ToolStripItem e, facoltativamente, le risorse gestite.Releases the unmanaged resources used by the ToolStripItem and optionally releases the managed resources.

DoDragDrop(Object, DragDropEffects) DoDragDrop(Object, DragDropEffects) DoDragDrop(Object, DragDropEffects) DoDragDrop(Object, DragDropEffects)

Inizia un'operazione di trascinamento e rilascio.Begins a drag-and-drop operation.

Equals(Object) Equals(Object) Equals(Object) Equals(Object)

Determina se l'oggetto specificato è uguale all'oggetto corrente.Determines whether the specified object is equal to the current object.

(Inherited from Object)
GetCurrentParent() GetCurrentParent() GetCurrentParent() GetCurrentParent()

Recupera l'oggetto ToolStrip che corrisponde al contenitore dell'oggetto ToolStripItem corrente.Retrieves the ToolStrip that is the container of the current ToolStripItem.

GetHashCode() GetHashCode() GetHashCode() GetHashCode()

Funge da funzione hash predefinita.Serves as the default hash function.

(Inherited from Object)
GetLifetimeService() GetLifetimeService() GetLifetimeService() GetLifetimeService()

Consente di recuperare l'oggetto servizio di durata corrente per controllare i criteri di durata per l'istanza.Retrieves the current lifetime service object that controls the lifetime policy for this instance.

(Inherited from MarshalByRefObject)
GetPreferredSize(Size) GetPreferredSize(Size) GetPreferredSize(Size) GetPreferredSize(Size)

Recupera le dimensioni di un'area rettangolare in grado di contenere il controllo.Retrieves the size of a rectangular area into which a control can be fit.

GetService(Type) GetService(Type) GetService(Type) GetService(Type)

Consente di restituire un oggetto che rappresenta un servizio fornito da Component o dal relativo Container.Returns an object that represents a service provided by the Component or by its Container.

(Inherited from Component)
GetType() GetType() GetType() GetType()

Ottiene l'oggetto Type dell'istanza corrente.Gets the Type of the current instance.

(Inherited from Object)
InitializeLifetimeService() InitializeLifetimeService() InitializeLifetimeService() InitializeLifetimeService()

Ottiene un oggetto servizio di durata per controllare i criteri di durata per questa istanza.Obtains a lifetime service object to control the lifetime policy for this instance.

(Inherited from MarshalByRefObject)
Invalidate() Invalidate() Invalidate() Invalidate()

Invalida l'intera superficie di ToolStripItem e ne determina il ridisegno.Invalidates the entire surface of the ToolStripItem and causes it to be redrawn.

Invalidate(Rectangle) Invalidate(Rectangle) Invalidate(Rectangle) Invalidate(Rectangle)

Invalida l'area specificata dell'oggetto ToolStripItem aggiungendola all'area di aggiornamento di ToolStripItem, ossia quella che verrà ridisegnata alla successiva operazione di disegno, e determina l'invio di un messaggio di disegno a ToolStripItem.Invalidates the specified region of the ToolStripItem by adding it to the update region of the ToolStripItem, which is the area that will be repainted at the next paint operation, and causes a paint message to be sent to the ToolStripItem.

IsInputChar(Char) IsInputChar(Char) IsInputChar(Char) IsInputChar(Char)

Determina se un carattere è un carattere di input riconosciuto dall'elemento.Determines whether a character is an input character that the item recognizes.

IsInputKey(Keys) IsInputKey(Keys) IsInputKey(Keys) IsInputKey(Keys)

Determina se il tasto specificato è un normale tasto di input o un tasto speciale che richiede una pre-elaborazione.Determines whether the specified key is a regular input key or a special key that requires preprocessing.

MemberwiseClone() MemberwiseClone() MemberwiseClone() MemberwiseClone()

Crea una copia superficiale dell'oggetto Object corrente.Creates a shallow copy of the current Object.

(Inherited from Object)
MemberwiseClone(Boolean) MemberwiseClone(Boolean) MemberwiseClone(Boolean) MemberwiseClone(Boolean)

Crea una copia dei riferimenti dell'oggetto MarshalByRefObject corrente.Creates a shallow copy of the current MarshalByRefObject object.

(Inherited from MarshalByRefObject)
OnAvailableChanged(EventArgs) OnAvailableChanged(EventArgs) OnAvailableChanged(EventArgs) OnAvailableChanged(EventArgs)

Genera l'evento AvailableChanged.Raises the AvailableChanged event.

OnBackColorChanged(EventArgs) OnBackColorChanged(EventArgs) OnBackColorChanged(EventArgs) OnBackColorChanged(EventArgs)

Genera l'evento BackColorChanged.Raises the BackColorChanged event.

OnBoundsChanged() OnBoundsChanged() OnBoundsChanged() OnBoundsChanged()

Si verifica quando la proprietà Bounds cambia.Occurs when the Bounds property changes.

OnClick(EventArgs) OnClick(EventArgs) OnClick(EventArgs) OnClick(EventArgs)

Genera l'evento Click.Raises the Click event.

OnDisplayStyleChanged(EventArgs) OnDisplayStyleChanged(EventArgs) OnDisplayStyleChanged(EventArgs) OnDisplayStyleChanged(EventArgs)

Genera l'evento DisplayStyleChanged.Raises the DisplayStyleChanged event.

OnDoubleClick(EventArgs) OnDoubleClick(EventArgs) OnDoubleClick(EventArgs) OnDoubleClick(EventArgs)

Genera l'evento DoubleClick.Raises the DoubleClick event.

OnDragDrop(DragEventArgs) OnDragDrop(DragEventArgs) OnDragDrop(DragEventArgs) OnDragDrop(DragEventArgs)

Genera l'evento DragDrop.Raises the DragDrop event.

OnDragEnter(DragEventArgs) OnDragEnter(DragEventArgs) OnDragEnter(DragEventArgs) OnDragEnter(DragEventArgs)

Genera l'evento DragEnter.Raises the DragEnter event.

OnDragLeave(EventArgs) OnDragLeave(EventArgs) OnDragLeave(EventArgs) OnDragLeave(EventArgs)

Genera l'evento DragLeave.Raises the DragLeave event.

OnDragOver(DragEventArgs) OnDragOver(DragEventArgs) OnDragOver(DragEventArgs) OnDragOver(DragEventArgs)

Genera l'evento DragOver.Raises the DragOver event.

OnEnabledChanged(EventArgs) OnEnabledChanged(EventArgs) OnEnabledChanged(EventArgs) OnEnabledChanged(EventArgs)

Genera l'evento EnabledChanged.Raises the EnabledChanged event.

OnFontChanged(EventArgs) OnFontChanged(EventArgs) OnFontChanged(EventArgs) OnFontChanged(EventArgs)

Genera l'evento FontChanged.Raises the FontChanged event.

OnForeColorChanged(EventArgs) OnForeColorChanged(EventArgs) OnForeColorChanged(EventArgs) OnForeColorChanged(EventArgs)

Genera l'evento ForeColorChanged.Raises the ForeColorChanged event.

OnGiveFeedback(GiveFeedbackEventArgs) OnGiveFeedback(GiveFeedbackEventArgs) OnGiveFeedback(GiveFeedbackEventArgs) OnGiveFeedback(GiveFeedbackEventArgs)

Genera l'evento GiveFeedback.Raises the GiveFeedback event.

OnLayout(LayoutEventArgs) OnLayout(LayoutEventArgs) OnLayout(LayoutEventArgs) OnLayout(LayoutEventArgs)

Genera l'evento Layout.Raises the Layout event.

OnLocationChanged(EventArgs) OnLocationChanged(EventArgs) OnLocationChanged(EventArgs) OnLocationChanged(EventArgs)

Genera l'evento LocationChanged.Raises the LocationChanged event.

OnMouseDown(MouseEventArgs) OnMouseDown(MouseEventArgs) OnMouseDown(MouseEventArgs) OnMouseDown(MouseEventArgs)

Genera l'evento MouseDown.Raises the MouseDown event.

OnMouseEnter(EventArgs) OnMouseEnter(EventArgs) OnMouseEnter(EventArgs) OnMouseEnter(EventArgs)

Genera l'evento MouseEnter.Raises the MouseEnter event.

OnMouseHover(EventArgs) OnMouseHover(EventArgs) OnMouseHover(EventArgs) OnMouseHover(EventArgs)

Genera l'evento MouseHover.Raises the MouseHover event.

OnMouseLeave(EventArgs) OnMouseLeave(EventArgs) OnMouseLeave(EventArgs) OnMouseLeave(EventArgs)

Genera l'evento MouseLeave.Raises the MouseLeave event.

OnMouseMove(MouseEventArgs) OnMouseMove(MouseEventArgs) OnMouseMove(MouseEventArgs) OnMouseMove(MouseEventArgs)

Genera l'evento MouseMove.Raises the MouseMove event.

OnMouseUp(MouseEventArgs) OnMouseUp(MouseEventArgs) OnMouseUp(MouseEventArgs) OnMouseUp(MouseEventArgs)

Genera l'evento MouseUp.Raises the MouseUp event.

OnOwnerChanged(EventArgs) OnOwnerChanged(EventArgs) OnOwnerChanged(EventArgs) OnOwnerChanged(EventArgs)

Genera l'evento OwnerChanged.Raises the OwnerChanged event.

OnOwnerFontChanged(EventArgs) OnOwnerFontChanged(EventArgs) OnOwnerFontChanged(EventArgs) OnOwnerFontChanged(EventArgs)

Genera l'evento FontChanged quando la proprietà Font dell'elemento padre di ToolStripItem cambia.Raises the FontChanged event when the Font property has changed on the parent of the ToolStripItem.

OnPaint(PaintEventArgs) OnPaint(PaintEventArgs) OnPaint(PaintEventArgs) OnPaint(PaintEventArgs)

Genera l'evento Paint.Raises the Paint event.

OnParentBackColorChanged(EventArgs) OnParentBackColorChanged(EventArgs) OnParentBackColorChanged(EventArgs) OnParentBackColorChanged(EventArgs)

Genera l'evento BackColorChanged.Raises the BackColorChanged event.

OnParentChanged(ToolStrip, ToolStrip) OnParentChanged(ToolStrip, ToolStrip) OnParentChanged(ToolStrip, ToolStrip) OnParentChanged(ToolStrip, ToolStrip)

Genera l'evento ParentChanged.Raises the ParentChanged event.

OnParentEnabledChanged(EventArgs) OnParentEnabledChanged(EventArgs) OnParentEnabledChanged(EventArgs) OnParentEnabledChanged(EventArgs)

Genera l'evento EnabledChanged quando cambia il valore della proprietà Enabled del contenitore dell'elemento.Raises the EnabledChanged event when the Enabled property value of the item's container changes.

OnParentForeColorChanged(EventArgs) OnParentForeColorChanged(EventArgs) OnParentForeColorChanged(EventArgs) OnParentForeColorChanged(EventArgs)

Genera l'evento ForeColorChanged.Raises the ForeColorChanged event.

OnParentRightToLeftChanged(EventArgs) OnParentRightToLeftChanged(EventArgs) OnParentRightToLeftChanged(EventArgs) OnParentRightToLeftChanged(EventArgs)

Genera l'evento RightToLeftChanged.Raises the RightToLeftChanged event.

OnQueryContinueDrag(QueryContinueDragEventArgs) OnQueryContinueDrag(QueryContinueDragEventArgs) OnQueryContinueDrag(QueryContinueDragEventArgs) OnQueryContinueDrag(QueryContinueDragEventArgs)

Genera l'evento QueryContinueDrag.Raises the QueryContinueDrag event.

OnRightToLeftChanged(EventArgs) OnRightToLeftChanged(EventArgs) OnRightToLeftChanged(EventArgs) OnRightToLeftChanged(EventArgs)

Genera l'evento RightToLeftChanged.Raises the RightToLeftChanged event.

OnTextChanged(EventArgs) OnTextChanged(EventArgs) OnTextChanged(EventArgs) OnTextChanged(EventArgs)

Genera l'evento TextChanged.Raises the TextChanged event.

OnVisibleChanged(EventArgs) OnVisibleChanged(EventArgs) OnVisibleChanged(EventArgs) OnVisibleChanged(EventArgs)

Genera l'evento VisibleChanged.Raises the VisibleChanged event.

PerformClick() PerformClick() PerformClick() PerformClick()

Consente di generare un evento Click per un pulsante.ToolStripItemGenerates a Click event for a ToolStripItem.

ProcessCmdKey(Message, Keys) ProcessCmdKey(Message, Keys) ProcessCmdKey(Message, Keys) ProcessCmdKey(Message, Keys)

Elabora un tasto di comando.Processes a command key.

ProcessDialogKey(Keys) ProcessDialogKey(Keys) ProcessDialogKey(Keys) ProcessDialogKey(Keys)

Elabora un tasto della finestra di dialogo.Processes a dialog key.

ProcessMnemonic(Char) ProcessMnemonic(Char) ProcessMnemonic(Char) ProcessMnemonic(Char)

Elabora un carattere per il tasto di scelta.Processes a mnemonic character.

ResetBackColor() ResetBackColor() ResetBackColor() ResetBackColor()

Questo metodo non è pertinente per questa classe.This method is not relevant to this class.

ResetDisplayStyle() ResetDisplayStyle() ResetDisplayStyle() ResetDisplayStyle()

Questo metodo non è pertinente per questa classe.This method is not relevant to this class.

ResetFont() ResetFont() ResetFont() ResetFont()

Questo metodo non è pertinente per questa classe.This method is not relevant to this class.

ResetForeColor() ResetForeColor() ResetForeColor() ResetForeColor()

Questo metodo non è pertinente per questa classe.This method is not relevant to this class.

ResetImage() ResetImage() ResetImage() ResetImage()

Questo metodo non è pertinente per questa classe.This method is not relevant to this class.

ResetMargin() ResetMargin() ResetMargin() ResetMargin()

Questo metodo non è pertinente per questa classe.This method is not relevant to this class.

ResetPadding() ResetPadding() ResetPadding() ResetPadding()

Questo metodo non è pertinente per questa classe.This method is not relevant to this class.

ResetRightToLeft() ResetRightToLeft() ResetRightToLeft() ResetRightToLeft()

Questo metodo non è pertinente per questa classe.This method is not relevant to this class.

ResetTextDirection() ResetTextDirection() ResetTextDirection() ResetTextDirection()

Questo metodo non è pertinente per questa classe.This method is not relevant to this class.

Select() Select() Select() Select()

Seleziona l'elemento.Selects the item.

SetBounds(Rectangle) SetBounds(Rectangle) SetBounds(Rectangle) SetBounds(Rectangle)

Imposta le dimensioni e la posizione dell'elemento.Sets the size and location of the item.

SetVisibleCore(Boolean) SetVisibleCore(Boolean) SetVisibleCore(Boolean) SetVisibleCore(Boolean)

Imposta il controllo ToolStripItem sullo stato visibile specificato.Sets the ToolStripItem to the specified visible state.

ToString() ToString() ToString() ToString()

Restituisce un oggetto String che contiene il nome dell'eventuale oggetto Component.Returns a String containing the name of the Component, if any. Questo metodo non deve essere sottoposto a override.This method should not be overridden.

Eventi

AvailableChanged AvailableChanged AvailableChanged AvailableChanged

Si verifica quando il valore della proprietà Available cambia.Occurs when the value of the Available property changes.

BackColorChanged BackColorChanged BackColorChanged BackColorChanged

Si verifica quando il valore della proprietà BackColor cambia.Occurs when the value of the BackColor property changes.

Click Click Click Click

Si verifica quando viene fatto clic sull'oggetto ToolStripItem.Occurs when the ToolStripItem is clicked.

DisplayStyleChanged DisplayStyleChanged DisplayStyleChanged DisplayStyleChanged

Si verifica quando viene modificata la proprietà DisplayStyle.Occurs when the DisplayStyle has changed.

Disposed Disposed Disposed Disposed

Si verifica quando il componente viene eliminato da una chiamata al metodo Dispose().Occurs when the component is disposed by a call to the Dispose() method.

(Inherited from Component)
DoubleClick DoubleClick DoubleClick DoubleClick

Si verifica quando viene fatto doppio clic sull'elemento con il mouse.Occurs when the item is double-clicked with the mouse.

DragDrop DragDrop DragDrop DragDrop

Si verifica quando l'utente trascina un elemento e rilascia il pulsante del mouse, indicando che l'elemento deve essere rilasciato in questo elemento.Occurs when the user drags an item and the user releases the mouse button, indicating that the item should be dropped into this item.

DragEnter DragEnter DragEnter DragEnter

Si verifica quando l'utente trascina un elemento nell'area client di questo elemento.Occurs when the user drags an item into the client area of this item.

DragLeave DragLeave DragLeave DragLeave

Si verifica quando l'utente trascina un elemento e il puntatore del mouse non è più posizionato sull'area client di questo elemento.Occurs when the user drags an item and the mouse pointer is no longer over the client area of this item.

DragOver DragOver DragOver DragOver

Si verifica quando l'utente trascina un elemento sull'area client di questo elemento.Occurs when the user drags an item over the client area of this item.

EnabledChanged EnabledChanged EnabledChanged EnabledChanged

Si verifica quando viene modificato il valore della proprietà Enabled.Occurs when the Enabled property value has changed.

ForeColorChanged ForeColorChanged ForeColorChanged ForeColorChanged

Si verifica quando il valore della proprietà ForeColor cambia.Occurs when the ForeColor property value changes.

GiveFeedback GiveFeedback GiveFeedback GiveFeedback

Si verifica durante un'operazione di trascinamento.Occurs during a drag operation.

LocationChanged LocationChanged LocationChanged LocationChanged

Si verifica quando viene aggiornata la posizione di un oggetto ToolStripItem.Occurs when the location of a ToolStripItem is updated.

MouseDown MouseDown MouseDown MouseDown

Si verifica quando il puntatore del mouse si trova sull'elemento e viene premuto un pulsante del mouse.Occurs when the mouse pointer is over the item and a mouse button is pressed.

MouseEnter MouseEnter MouseEnter MouseEnter

Si verifica quando il puntatore del mouse entra nell'elemento.Occurs when the mouse pointer enters the item.

MouseHover MouseHover MouseHover MouseHover

Si verifica quando il puntatore del mouse passa sull'elemento.Occurs when the mouse pointer hovers over the item.

MouseLeave MouseLeave MouseLeave MouseLeave

Si verifica quando il puntatore del mouse lascia l'elemento.Occurs when the mouse pointer leaves the item.

MouseMove MouseMove MouseMove MouseMove

Si verifica quando il puntatore del mouse viene spostato sull'elemento.Occurs when the mouse pointer is moved over the item.

MouseUp MouseUp MouseUp MouseUp

Si verifica quando il puntatore del mouse si trova sull'elemento e viene rilasciato un pulsante del mouse.Occurs when the mouse pointer is over the item and a mouse button is released.

OwnerChanged OwnerChanged OwnerChanged OwnerChanged

Si verifica quando la proprietà Owner cambia.Occurs when the Owner property changes.

Paint Paint Paint Paint

Si verifica quando l'elemento viene ridisegnato.Occurs when the item is redrawn.

QueryAccessibilityHelp QueryAccessibilityHelp QueryAccessibilityHelp QueryAccessibilityHelp

Si verifica quando un'applicazione client di accessibilità richiama la Guida per ToolStripItem.Occurs when an accessibility client application invokes help for the ToolStripItem.

QueryContinueDrag QueryContinueDrag QueryContinueDrag QueryContinueDrag

Si verifica durante un'operazione di trascinamento e rilascio e consente all'origine del trascinamento di determinare se l'operazione deve essere annullata.Occurs during a drag-and-drop operation and allows the drag source to determine whether the drag-and-drop operation should be canceled.

RightToLeftChanged RightToLeftChanged RightToLeftChanged RightToLeftChanged

Si verifica quando il valore della proprietà RightToLeft cambia.Occurs when the RightToLeft property value changes.

TextChanged TextChanged TextChanged TextChanged

Si verifica quando il valore della proprietà Text cambia.Occurs when the value of the Text property changes.

VisibleChanged VisibleChanged VisibleChanged VisibleChanged

Si verifica quando il valore della proprietà Visible cambia.Occurs when the value of the Visible property changes.

Implementazioni dell'interfaccia esplicita

IDropTarget.OnDragDrop(DragEventArgs) IDropTarget.OnDragDrop(DragEventArgs) IDropTarget.OnDragDrop(DragEventArgs) IDropTarget.OnDragDrop(DragEventArgs)

Genera l'evento DragDrop.Raises the DragDrop event.

IDropTarget.OnDragEnter(DragEventArgs) IDropTarget.OnDragEnter(DragEventArgs) IDropTarget.OnDragEnter(DragEventArgs) IDropTarget.OnDragEnter(DragEventArgs)

Genera l'evento DragEnter.Raises the DragEnter event.

IDropTarget.OnDragLeave(EventArgs) IDropTarget.OnDragLeave(EventArgs) IDropTarget.OnDragLeave(EventArgs) IDropTarget.OnDragLeave(EventArgs)

Genera l'evento DragLeave.Raises the DragLeave event.

IDropTarget.OnDragOver(DragEventArgs) IDropTarget.OnDragOver(DragEventArgs) IDropTarget.OnDragOver(DragEventArgs) IDropTarget.OnDragOver(DragEventArgs)

Genera l'evento DragOver.Raises the DragOver event.

Si applica a

Vedi anche