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LinkBehavior Enumeration

Specifies the behaviors of a link in a LinkLabel.

Namespace:  System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

public enum LinkBehavior

Member nameDescription
SystemDefaultThe behavior of this setting depends on the options set using the Internet Options dialog box in Control Panel or Internet Explorer.
AlwaysUnderlineThe link always displays with underlined text.
HoverUnderlineThe link displays underlined text only when the mouse is hovered over the link text.
NeverUnderlineThe link text is never underlined. The link can still be distinguished from other text by use of the LinkColor property of the LinkLabel control.

Use the members of this enumeration to set the value of the LinkBehavior property of the LinkLabel.

The following example demonstrates setting the LinkLabel.LinkBehavior property using the LinkBehavior enumeration. It alsodemonstrates setting the LinkLabel.LinkColor, Text and LinkVisited properties. To run this sample place it in a blank form and call the InitializeLinkLabel method from the form's constructor or Load method.



	// 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);
	}


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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