ToolStripLabel.LinkVisited Proprietà

Definizione

Spazio dei nomi:

System.Windows.Forms

Assembly:

System.Windows.Forms.dll

Ottiene o imposta un valore che indica se un collegamento deve essere visualizzato come se fosse stato visitato.

public:
 property bool LinkVisited { bool get(); void set(bool value); };

public bool LinkVisited { get; set; }

member this.LinkVisited : bool with get, set

Public Property LinkVisited As Boolean

Valore della proprietà

Boolean

true se i collegamenti devono essere visualizzati come se fossero stati visitati; in caso contrario, false. Il valore predefinito è false.

Esempio

Nell'esempio di codice seguente viene illustrato come inizializzare un ToolStripLabel oggetto per contenere un collegamento impostando le IsLinkproprietà , LinkColorActiveLinkColor, VisitedLinkColor, LinkVisited e LinkBehavior .

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

public class Form1 : Form
{
    private ToolStripLabel toolStripLabel1;
    private ToolStrip toolStrip1;

    public Form1()
    {
        InitializeComponent();
    }
    [STAThread]
    static void Main()
    {
        Application.EnableVisualStyles();
        Application.SetCompatibleTextRenderingDefault(false);
        Application.Run(new Form1());
    }

    private void InitializeComponent()
    {
        this.toolStrip1 = new System.Windows.Forms.ToolStrip();
        this.toolStripLabel1 = new System.Windows.Forms.ToolStripLabel();
        this.toolStrip1.SuspendLayout();
        this.SuspendLayout();
        // 
        // toolStrip1
        // 
        this.toolStrip1.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
            this.toolStripLabel1});
        this.toolStrip1.Location = new System.Drawing.Point(0, 0);
        this.toolStrip1.Name = "toolStrip1";
        this.toolStrip1.Size = new System.Drawing.Size(292, 25);
        this.toolStrip1.TabIndex = 0;
        this.toolStrip1.Text = "toolStrip1";
        // 
        // toolStripLabel1
        // 
        this.toolStripLabel1.IsLink = true;
        this.toolStripLabel1.LinkBehavior = System.Windows.Forms.LinkBehavior.AlwaysUnderline;
        this.toolStripLabel1.Name = "toolStripLabel1";
        this.toolStripLabel1.Size = new System.Drawing.Size(71, 22);
        this.toolStripLabel1.Tag = "http://search.microsoft.com/search/search.aspx?";
        this.toolStripLabel1.Text = "Search MSDN";
        this.toolStripLabel1.Click += new System.EventHandler(this.toolStripLabel1_Click);
        // 
        // Form1
        // 
        this.ClientSize = new System.Drawing.Size(292, 273);
        this.Controls.Add(this.toolStrip1);
        this.Name = "Form1";
        this.toolStrip1.ResumeLayout(false);
        this.toolStrip1.PerformLayout();
        this.ResumeLayout(false);
        this.PerformLayout();
    }

    private void toolStripLabel1_Click(object sender, EventArgs e)
    {
        ToolStripLabel toolStripLabel1 = (ToolStripLabel)sender;

        // Start Internet Explorer and navigate to the URL in the
        // tag property.
        System.Diagnostics.Process.Start("IEXPLORE.EXE", toolStripLabel1.Tag.ToString());

        // Set the LinkVisited property to true to change the color.
        toolStripLabel1.LinkVisited = true;
    }
}

Imports System.Collections.Generic
Imports System.ComponentModel
Imports System.Data
Imports System.Drawing
Imports System.Text
Imports System.Windows.Forms

Public Class Form1
   Inherits Form
   Private WithEvents toolStripLabel1 As ToolStripLabel
   Private toolStrip1 As ToolStrip
   
   Public Sub New()
      InitializeComponent()
   End Sub
   
   <STAThread()>  _
   Shared Sub Main()
      Application.EnableVisualStyles()
      Application.SetCompatibleTextRenderingDefault(False)
      Application.Run(New Form1())
   End Sub
   
   
   Private Sub InitializeComponent()
      Me.toolStrip1 = New System.Windows.Forms.ToolStrip()
      Me.toolStripLabel1 = New System.Windows.Forms.ToolStripLabel()
      Me.toolStrip1.SuspendLayout()
      Me.SuspendLayout()
      ' 
      ' toolStrip1
      ' 
      Me.toolStrip1.Items.AddRange(New System.Windows.Forms.ToolStripItem() {Me.toolStripLabel1})
      Me.toolStrip1.Location = New System.Drawing.Point(0, 0)
      Me.toolStrip1.Name = "toolStrip1"
      Me.toolStrip1.Size = New System.Drawing.Size(292, 25)
      Me.toolStrip1.TabIndex = 0
      Me.toolStrip1.Text = "toolStrip1"
      ' 
      ' toolStripLabel1
      ' 
      Me.toolStripLabel1.IsLink = True
      Me.toolStripLabel1.LinkBehavior = System.Windows.Forms.LinkBehavior.AlwaysUnderline
      Me.toolStripLabel1.Name = "toolStripLabel1"
      Me.toolStripLabel1.Size = New System.Drawing.Size(71, 22)
      Me.toolStripLabel1.Tag = "http://search.microsoft.com/search/search.aspx?"
      Me.toolStripLabel1.Text = "Search MSDN"
      ' 
      ' Form1
      ' 
      Me.ClientSize = New System.Drawing.Size(292, 273)
      Me.Controls.Add(toolStrip1)
      Me.Name = "Form1"
      Me.toolStrip1.ResumeLayout(False)
      Me.toolStrip1.PerformLayout()
      Me.ResumeLayout(False)
      Me.PerformLayout()
   End Sub
    
   
   Private Sub toolStripLabel1_Click(sender As Object, e As EventArgs) Handles toolStripLabel1.Click
      Dim toolStripLabel1 As ToolStripLabel = CType(sender, ToolStripLabel)
      
      ' Start Internet Explorer and navigate to the URL in the
      ' tag property.
      System.Diagnostics.Process.Start("IEXPLORE.EXE", toolStripLabel1.Tag.ToString())
      
      ' Set the LinkVisited property to true to change the color.
      toolStripLabel1.LinkVisited = True
   End Sub
End Class

Commenti

Un LinkLabel controllo non indica automaticamente che un collegamento è un collegamento visitato. Per visualizzare il collegamento come collegamento visitato, è possibile impostare il valore di questa proprietà su true in un gestore eventi per l'evento click dell'oggetto LinkLabel. Viene visualizzato un collegamento visitato utilizzando il colore specificato nella VisitedLinkColor proprietà del ToolStripLabel controllo .