Csharp/CSharp Tutorial/GUI Windows Forms/LinkLabel

Add Image in an ImageList to a LinkLabel

<source lang="csharp">using System; using System.Drawing; using System.Windows.Forms; using System.Collections; public class ImageLists : Form {

 ImageList imgList;
 Label lbl;
 LinkLabel lnk;
 Button btn;
 public ImageLists()
 {
      Size = new Size(300,300);
   imgList = new ImageList();
   Image img;
   String[] arFiles = {"1.ico","2.ico","3.ico"};

   for (int i = 0; i < arFiles.Length; i++)
   {
     img = Image.FromFile(arFiles[i]);
     imgList.Images.Add(img);
   }
   imgList.ImageSize = new Size(32, 32);

   lbl = new Label();
      lbl.Parent = this;
      lbl.Text = "Label";
      lbl.Location = new Point(0,0);
      lbl.Size = new Size(lbl.PreferredWidth + imgList.ImageSize.Width, 
     imgList.ImageSize.Height + 10);
      lbl.BorderStyle = BorderStyle.Fixed3D;
   lbl.ImageList = imgList;
   lbl.ImageIndex = 0;
   lbl.ImageAlign = ContentAlignment.MiddleRight;
      int yDelta = lbl.Height + 10;
    
      lnk = new LinkLabel();
      lnk.Parent = this;
      lnk.Text = "LinkLabel";
      lnk.Size = new Size(lnk.PreferredWidth + imgList.ImageSize.Width, 
     imgList.ImageSize.Height + 10);
      lnk.Location = new Point(0, yDelta);
   lnk.ImageList = imgList;
   lnk.ImageIndex = 0;
   lnk.ImageAlign = ContentAlignment.MiddleRight;
   btn = new Button();
   btn.Parent = this;
   btn.ImageList = imgList;
   btn.ImageIndex = imgList.Images.Count - 1;
   btn.Location = new Point(0, 2 * yDelta);
   btn.Size = new Size(3 * imgList.ImageSize.Width, 
             2 * imgList.ImageSize.Height);

   lbl.ImageIndex = 1;
   lnk.ImageIndex = 0;
   btn.ImageIndex = 2;
 }
 static void Main() 
 {
     Application.Run(new ImageLists());
 }

}</source>

LinkLabels: Add a link

<source lang="csharp">using System; using System.Drawing; using System.Windows.Forms; public class LinkLabelAddLink : Form {

   LinkLabel lnkLA = new LinkLabel();
 public LinkLabelAddLink(){
   Size = new Size(300,250);
 
   lnkLA.Parent = this;
   lnkLA.Text = "nfex.ru";
   lnkLA.Location = new Point(0,25);
   lnkLA.AutoSize = true;
   lnkLA.BorderStyle = BorderStyle.None;
   lnkLA.Links.Add(0,7,"www.nfex.ru");
   lnkLA.LinkClicked += new System.Windows.Forms.LinkLabelLinkClickedEventHandler(lnkLA_LinkClicked);
 }
 static void Main() 
 {
   Application.Run(new LinkLabelAddLink());
 }
 private void lnkLA_LinkClicked(object sender,LinkLabelLinkClickedEventArgs e)
 {
     lnkLA.LinkVisited = true;
      System.Diagnostics.Process.Start(e.Link.LinkData.ToString());
 }

}</source>

LinkLabels: link to text file

<source lang="csharp">using System; using System.Drawing; using System.Windows.Forms; public class LinkLabelLinkToAFile : Form {

 public LinkLabelLinkToAFile(){
   Size = new Size(300,250);
 
   LinkLabel lnkTxtFile = new LinkLabel();
   lnkTxtFile.Parent = this;
   lnkTxtFile.Text = "Address";
   lnkTxtFile.Location = new Point(0,100);
   lnkTxtFile.AutoSize = true;
   lnkTxtFile.BorderStyle = BorderStyle.None;
   lnkTxtFile.LinkBehavior = LinkBehavior.NeverUnderline;
   lnkTxtFile.ActiveLinkColor = Color.Green;
   lnkTxtFile.LinkColor = Color.Red;
   lnkTxtFile.VisitedLinkColor = Color.Orange;
   lnkTxtFile.Links.Add(0,lnkTxtFile.Text.ToString().Length,@"c:\test.txt");
   lnkTxtFile.LinkClicked += new System.Windows.Forms.LinkLabelLinkClickedEventHandler(lnkGeneric_LinkClicked);
 }
 static void Main() 
 {
   Application.Run(new LinkLabelLinkToAFile());
 }
 private void lnkGeneric_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
 {
   LinkLabel lnk = new LinkLabel();
   lnk = (LinkLabel)sender;
     lnk.Links[lnk.Links.IndexOf(e.Link)].Visited = true;
      System.Diagnostics.Process.Start(e.Link.LinkData.ToString());
 }

}</source>

LinkLabels: multiple links and generic handler

<source lang="csharp">using System; using System.Drawing; using System.Windows.Forms; public class LinkLabelMoreLinks : Form {

 public LinkLabelMoreLinks(){
   Size = new Size(300,250);
 
   LinkLabel lnkMulti = new LinkLabel();
   lnkMulti.Parent = this;
   lnkMulti.Text = "nfex.ru";
   lnkMulti.Location = new Point(0,75);
   lnkMulti.AutoSize = true;
   lnkMulti.BorderStyle = BorderStyle.None;
   lnkMulti.LinkBehavior = LinkBehavior.HoverUnderline;
   lnkMulti.Links.Add(0,4,"www.nfex.ru");
   lnkMulti.Links.Add(6,5,"www.google.ru");
   lnkMulti.Links.Add(13,2, "www.vw.ru");
   lnkMulti.LinkClicked += new System.Windows.Forms.LinkLabelLinkClickedEventHandler(lnkGeneric_LinkClicked);
 }
 static void Main() 
 {
   Application.Run(new LinkLabelMoreLinks());
 }
 private void lnkGeneric_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
 {
   LinkLabel lnk = new LinkLabel();
   lnk = (LinkLabel)sender;
     lnk.Links[lnk.Links.IndexOf(e.Link)].Visited = true;
      System.Diagnostics.Process.Start(e.Link.LinkData.ToString());
 }

}</source>

LinkLabels: Text property and LinkArea

<source lang="csharp">using System; using System.Drawing; using System.Windows.Forms; public class LinkLabelTextPropertyLinkArea : Form {

   LinkLabel lnkMsft = new LinkLabel();
 public LinkLabelTextPropertyLinkArea(){
   Size = new Size(300,250);
 
   lnkMsft.Parent = this;
   lnkMsft.Text = "www.nfex.ru";
   lnkMsft.Location = new Point(0,0);
   lnkMsft.AutoSize = true;
   lnkMsft.BorderStyle = BorderStyle.None;
   lnkMsft.LinkArea = new LinkArea(4,9);
   lnkMsft.LinkClicked +=   new System.Windows.Forms.LinkLabelLinkClickedEventHandler(lnkMsft_LinkClicked);
 }
 static void Main() 
 {
   Application.Run(new LinkLabelTextPropertyLinkArea());
 }
 private void lnkMsft_LinkClicked(object sender, 
                  LinkLabelLinkClickedEventArgs e)
 {
     lnkMsft.Links[lnkMsft.Links.IndexOf(e.Link)].Visited = true;
      System.Diagnostics.Process.Start(lnkMsft.Text);
 }

}</source>

LinkLabels: use generic Add and generic handler

<source lang="csharp">using System; using System.Drawing; using System.Windows.Forms; public class LinkLabelGenericAddHandler : Form {

 public LinkLabelGenericAddHandler(){
   Size = new Size(300,250);
 
   LinkLabel lnkSterSol = new LinkLabel();
   lnkSterSol.Parent = this;
   lnkSterSol.Text = "www.nfex.ru";
   lnkSterSol.Location = new Point(0,50);
   lnkSterSol.AutoSize = true;
   lnkSterSol.BorderStyle = BorderStyle.None;
   lnkSterSol.Links.Add(0,lnkSterSol.Text.ToString().Length,"www.nfex.ru");
   lnkSterSol.LinkClicked += new System.Windows.Forms.LinkLabelLinkClickedEventHandler(lnkGeneric_LinkClicked);
 }
 static void Main() 
 {
   Application.Run(new LinkLabelGenericAddHandler());
 }
 private void lnkGeneric_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
 {
   LinkLabel lnk = new LinkLabel();
   lnk = (LinkLabel)sender;
     lnk.Links[lnk.Links.IndexOf(e.Link)].Visited = true;
      System.Diagnostics.Process.Start(e.Link.LinkData.ToString());
 }

}</source>