HtmlAnchor Control

Definition and Usage

The HtmlAnchor control is used to control an <a> element. In HTML, the <a> element is used to create a hyperlink. The hyperlink may link to a bookmark or to another Web page.

Properties

Property	Description
HRef	The URL target of the link
id	A unique id for the control
Name	The name of the anchor
OnServerClick	The name of the function to be executed when the link is clicked
runat	Specifies that the control is a server control. Must be set to "server"
Target	The target window to open
Title	A title to be displayed by the browser (like the alt attribute of the img element)

Example 1

In the following example we declare an HtmlAnchor control in an .aspx file (remember to embed the control inside an HtmlForm control). Then we modify the URL, target, and title of the HtmlAnchor control in an event handler (an event handler is a subroutine that executes code for a given event). The Page_Load event is one of many events that ASP.NET understands:

<script runat="server">
  Sub Page_Load(Sender As Object,E As EventArgs)
    a1.HRef="http://www.w3schools.com"
    a1.Target="_blank"
    a1.Title="Link to W3Schools.com"
  End Sub
</script>

<html>
<body>
<form runat="server">
<a id="a1" runat="server">Go to W3Schools</a>
</form>
</body>
</html>

Example 2

In the following example we declare an HtmlAnchor control in an .aspx file (remember to embed the control inside an HtmlForm control). When the user clicks on the link, we send the text "Hello World!" to the span element:

<script runat="server">
  Sub display_txt(Source As Object,E as EventArgs)
    txt.InnerHtml="Hello World!"
  End Sub
</script>

<html>
<body>
<form runat="server">
<a OnServerClick="display_txt" runat="server">Click here!</a>
<h3><span id="txt" runat="server"/></h3>
</form>
</body>
</html>

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