C# LinkLabel.LinkVisited属性代码示例

// Declare the LinkLabel object.
internal System.Windows.Forms.LinkLabel LinkLabel1;

// Declare keywords array to identify links
string[] keywords;

private void InitializeLinkLabel()
{
    this.LinkLabel1 = new System.Windows.Forms.LinkLabel();
            this.LinkLabel1.Links.Clear();

    // Set the location, name and size.
    this.LinkLabel1.Location = new System.Drawing.Point(10, 20);
    this.LinkLabel1.Name = "CompanyLinks";
    this.LinkLabel1.Size = new System.Drawing.Size(104, 150);

    // Set the LinkBehavior property to show underline when mouse
    // hovers over the links.
    this.LinkLabel1.LinkBehavior = System.Windows.Forms.LinkBehavior.HoverUnderline;
    string textString = "For more information see our" +
        " company website or the research page at Contoso Ltd. ";

    // Set the text property.
    this.LinkLabel1.Text = textString;

    // Set the color of the links to black, unless the mouse
    // is hovering over a link.
    this.LinkLabel1.LinkColor = System.Drawing.Color.Black;
    this.LinkLabel1.ActiveLinkColor = System.Drawing.Color.Blue;

    // Associate the event-handling method with the LinkClicked
    // event.
    this.LinkLabel1.LinkClicked += 
        new LinkLabelLinkClickedEventHandler(LinkLabel1_LinkClicked);

    // Add links to the LinkCollection using starting index and
    // length of keywords.
    keywords = new string[]{"company", "research"};
    foreach ( string keyword in keywords )
    {
        this.LinkLabel1.Links.Add(textString.IndexOf(keyword), keyword.Length);
    }

    // Add the label to the form.
    this.Controls.Add(this.LinkLabel1);
}

private void LinkLabel1_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
{

    string url = "";

    // Determine which link was clicked and set the appropriate url.
    switch(LinkLabel1.Links.IndexOf(e.Link))
    {
        case 0:
            url = "www.microsoft.com";

            break;
        case 1:
            url = "www.contoso.com/research";
            break;
    }

    // Set the visited property to True. This will change
    // the color of the link.
    e.Link.Visited = true;

    // Open Internet Explorer to the correct url.
    System.Diagnostics.Process.Start("IExplore.exe", url);
}

//引入命名空间
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 System.Windows.Forms.LinkLabel driveLinkLabel;
      private System.Windows.Forms.LinkLabel deitelLinkLabel;
      private System.Windows.Forms.LinkLabel notepadLinkLabel;
      
      public Form1() {
        InitializeComponent();
      }

      private void driveLinkLabel_LinkClicked( object sender, LinkLabelLinkClickedEventArgs e )
      {
        driveLinkLabel.LinkVisited = true;
        System.Diagnostics.Process.Start( @"C:\" );
      } 

      private void deitelLinkLabel_LinkClicked( object sender, LinkLabelLinkClickedEventArgs e )
      {
        deitelLinkLabel.LinkVisited = true;
        System.Diagnostics.Process.Start( "IExplore", "http://www.java2s.com" );
      }

      private void notepadLinkLabel_LinkClicked( object sender, LinkLabelLinkClickedEventArgs e )
      {
         notepadLinkLabel.LinkVisited = true;
         System.Diagnostics.Process.Start( "notepad" );
      }

      private void InitializeComponent()
      {
         this.driveLinkLabel = new System.Windows.Forms.LinkLabel();
         this.deitelLinkLabel = new System.Windows.Forms.LinkLabel();
         this.notepadLinkLabel = new System.Windows.Forms.LinkLabel();
         this.SuspendLayout();
         // 
         // driveLinkLabel
         // 
         this.driveLinkLabel.AutoSize = true;
         this.driveLinkLabel.Font = new System.Drawing.Font("Microsoft Sans Serif", 12F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
         this.driveLinkLabel.Location = new System.Drawing.Point(28, 24);
         this.driveLinkLabel.Name = "driveLinkLabel";
         this.driveLinkLabel.Size = new System.Drawing.Size(133, 20);
         this.driveLinkLabel.TabIndex = 0;
         this.driveLinkLabel.TabStop = true;
         this.driveLinkLabel.Text = "Click to browse C:\\";
         this.driveLinkLabel.LinkClicked += new System.Windows.Forms.LinkLabelLinkClickedEventHandler(this.driveLinkLabel_LinkClicked);
         // 
         // deitelLinkLabel
         // 
         this.deitelLinkLabel.AutoSize = true;
         this.deitelLinkLabel.Font = new System.Drawing.Font("Microsoft Sans Serif", 12F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
         this.deitelLinkLabel.Location = new System.Drawing.Point(28, 68);
         this.deitelLinkLabel.Name = "deitelLinkLabel";
         this.deitelLinkLabel.Size = new System.Drawing.Size(198, 20);
         this.deitelLinkLabel.TabIndex = 1;
         this.deitelLinkLabel.TabStop = true;
         this.deitelLinkLabel.Text = "Click to visit www.java2s.com";
         this.deitelLinkLabel.LinkClicked += new System.Windows.Forms.LinkLabelLinkClickedEventHandler(this.deitelLinkLabel_LinkClicked);
         // 
         // notepadLinkLabel
         // 
         this.notepadLinkLabel.AutoSize = true;
         this.notepadLinkLabel.Font = new System.Drawing.Font("Microsoft Sans Serif", 12F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
         this.notepadLinkLabel.Location = new System.Drawing.Point(28, 114);
         this.notepadLinkLabel.Name = "notepadLinkLabel";
         this.notepadLinkLabel.Size = new System.Drawing.Size(147, 20);
         this.notepadLinkLabel.TabIndex = 2;
         this.notepadLinkLabel.TabStop = true;
         this.notepadLinkLabel.Text = "Click to run Notepad";
         this.notepadLinkLabel.LinkClicked += new System.Windows.Forms.LinkLabelLinkClickedEventHandler(this.notepadLinkLabel_LinkClicked);
         // 
         // LinkLabelTestForm
         // 
         this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
         this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
         this.ClientSize = new System.Drawing.Size(261, 164);
         this.Controls.Add(this.notepadLinkLabel);
         this.Controls.Add(this.deitelLinkLabel);
         this.Controls.Add(this.driveLinkLabel);
         this.Name = "LinkLabelTestForm";
         this.Text = "LinkLabelTest";
         this.ResumeLayout(false);
         this.PerformLayout();

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