LinkBehavior Enumeration
Assembly: System.Windows.Forms (in system.windows.forms.dll)
| Member name | Description | |
|---|---|---|
| AlwaysUnderline | The link always displays with underlined text. | |
| HoverUnderline | The link displays underlined text only when the mouse is hovered over the link text. | |
| NeverUnderline | The link text is never underlined. The link can still be distinguished from other text by use of the LinkColor property of the LinkLabel control. | |
| SystemDefault | The behavior of this setting depends on the options set using the Internet Options dialog box in Control Panel or Internet Explorer. |
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. Friend WithEvents LinkLabel1 As System.Windows.Forms.LinkLabel ' Declare keywords array to identify links Dim keywords() As String Private Sub InitializeLinkLabel() Me.LinkLabel1 = New System.Windows.Forms.LinkLabel Me.LinkLabel1.Links.Clear() ' Set the location, name and size. Me.LinkLabel1.Location = New System.Drawing.Point(10, 20) Me.LinkLabel1.Name = "CompanyLinks" Me.LinkLabel1.Size = New System.Drawing.Size(104, 150) ' Set the LinkBehavior property to show underline when mouse ' hovers over the links. Me.LinkLabel1.LinkBehavior = _ System.Windows.Forms.LinkBehavior.HoverUnderline Dim textString As String = "For more information see our" & _ " company website or the research page at Contoso Ltd. " ' Set the text property. Me.LinkLabel1.Text = textString ' Set the color of the links to black, unless the mouse ' is hovering over a link. Me.LinkLabel1.LinkColor = System.Drawing.Color.Black Me.LinkLabel1.ActiveLinkColor = System.Drawing.Color.Blue ' Add links to the LinkCollection using starting index and ' length of keywords. keywords = New String() {"company", "research"} Dim keyword As String For Each keyword In keywords Me.LinkLabel1.Links.Add(textString.IndexOf(keyword), keyword.Length) Next ' Add the label to the form. Me.Controls.Add(Me.LinkLabel1) End Sub Private Sub LinkLabel1_LinkClicked(ByVal sender As Object, _ ByVal e As LinkLabelLinkClickedEventArgs) _ Handles LinkLabel1.LinkClicked Dim url As String ' Determine which link was clicked and set the appropriate url. Select Case LinkLabel1.Links.IndexOf(e.Link) Case 0 url = "www.microsoft.com" Case 1 url = "www.contoso.com/research" End Select ' 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) End Sub
// Declare the LinkLabel object.
private System.Windows.Forms.LinkLabel linkLabel1;
// Declare keywords array to identify links
private String keywords[];
private void InitializeLinkLabel()
{
this.linkLabel1 = new System.Windows.Forms.LinkLabel();
// Set the location, name and size.
this.linkLabel1.set_Location(new System.Drawing.Point(10, 20));
this.linkLabel1.set_Name("CompanyLinks");
this.linkLabel1.set_Size(new System.Drawing.Size(104, 150));
// Set the LinkBehavior property to show underline when mouse
// hovers over the links.
this.linkLabel1.set_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.set_Text(textString);
// Set the color of the links to black, unless the mouse
// is hovering over a link.
this.linkLabel1.set_LinkColor(System.Drawing.Color.get_Black());
this.linkLabel1.set_ActiveLinkColor(System.Drawing.Color.get_Blue());
// Associate the event-handling method with the LinkClicked
// event.
this.linkLabel1.add_LinkClicked(new LinkLabelLinkClickedEventHandler(
linkLabel1_LinkClicked));
// Add links to the LinkCollection using starting index and
// length of keywords.
keywords = new String[] { "company", "research" };
for (int iCtr = 0; iCtr < keywords.length; iCtr++) {
String keyword = keywords[iCtr];
this.linkLabel1.get_Links().Add(textString.IndexOf(keyword),
keyword.get_Length());
}
// Add the label to the form.
this.get_Controls().Add(this.linkLabel1);
} //InitializeLinkLabel
private void linkLabel1_LinkClicked(Object sender,
LinkLabelLinkClickedEventArgs e)
{
String url = "";
// Determine which link was clicked and set the appropriate url.
switch (linkLabel1.get_Links().IndexOf(e.get_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.get_Link().set_Visited(true);
// Open Internet Explorer to the correct url.
System.Diagnostics.Process.Start("IExplore.exe", url);
} //linkLabel1_LinkClicked
Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.