Export (0) Print
Expand All

HtmlMeta Class

Allows programmatic access to the HTML <meta> tag on the server.

Namespace:  System.Web.UI.HtmlControls
Assembly:  System.Web (in System.Web.dll)

[AspNetHostingPermissionAttribute(SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
[AspNetHostingPermissionAttribute(SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
public class HtmlMeta : HtmlControl
<asp:HtmlMeta />

The HtmlMeta control provides programmatic access to the HTML <meta> element on the server. The HTML <meta> element is a container for data about the rendered page, but not page content itself. The <meta> tag is placed between the opening and closing HTML <head> elements. Each <meta> element describes a metadata property name and its associated value.

Use the HtmlMeta control's Name property to specify the metadata property name, and the Content property to specify the metadata property value. Use the Scheme property to specify additional information to user agents on how to interpret the metadata property. Use the HttpEquiv property in place of the Name property when the resulting metadata property will be retrieved using HTTP.

You can get a reference to the page <head> element using the Header property of the Page object.

The following code example demonstrates how to use the HtmlMeta control to define HTML <meta> elements for a Web page. Two <meta> elements are defined, one listing keywords describing the page and one listing the date the page was created.

<%@ Page Language="C#" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">

  protected void Page_Load(object sender, EventArgs e)
  {
    // Create two instances of an HtmlMeta control.
    HtmlMeta hm1 = new HtmlMeta();
    HtmlMeta hm2 = new HtmlMeta();    

    // Get a reference to the page header element.
    HtmlHead head = (HtmlHead)Page.Header;

    // Define an HTML <meta> element that is useful for search engines.
    hm1.Name = "keywords";
    hm1.Content = "words that describe your web page";
    head.Controls.Add(hm1);

    // Define an HTML <meta> element with a Scheme attribute.
    hm2.Name = "date";
    hm2.Content = DateTime.Now.ToString("yyyy-MM-dd");
    hm2.Scheme = "YYYY-MM-DD";
    head.Controls.Add(hm2);

  }
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>HtmlMeta Example</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    View the HTML source code of the page to see the two HTML meta elements added.
    </div>
    </form>
</body>
</html>

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

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

.NET Framework

Supported in: 3.5, 3.0, 2.0

Community Additions

ADD
Show:
© 2014 Microsoft