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Page.Header Property

Gets the document header for the page if the head element is defined with a runat=server in the page declaration.

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

[BrowsableAttribute(false)]
public HtmlHead Header { get; }

Property Value

Type: System.Web.UI.HtmlControls.HtmlHead
An HtmlHead containing the page header.

The Header property gets a reference to an HtmlHead object that you can use to set document header information for the page. The HtmlHead allows you to add information such as style sheets, style rules, a title, and metadata to the head element.

NoteNote

Adding styles programmatically using the methods of the IStyleSheet interface during asynchronous postbacks is not supported. When you add AJAX capabilities to a Web page, asynchronous postbacks update regions of the page without updating the whole page. For more information, see Microsoft Ajax Overview.

The following code example demonstrates how to access the HtmlHead control programmatically using the Header property. A title element and style element are added to the head element of the page.

<%@ 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, System.EventArgs e)
  {

      // Create a Style object for the body of the page.
      Style bodyStyle = new Style();

      bodyStyle.ForeColor = System.Drawing.Color.Blue;
      bodyStyle.BackColor = System.Drawing.Color.LightGray;

      // Add the style rule named bodyStyle to the header 
      // of the current page. The rule is for the body HTML element.
      Page.Header.StyleSheet.CreateStyleRule(bodyStyle, null, "body");

      // Add the page title to the header element.
      Page.Header.Title = "HtmlHead Example"; 

  }

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >

<head id="head1"
      runat="server">
      <title>To be replaced.</title>
</head>

<body>
  <form id="form1" runat="server">

  <h3>HtmlHead Class Example</h3>  

  <asp:label id="Label1" 
    text = "View the HTML source code of this page to see the title 
            and body style added to the header element."
    runat="server">
  </asp:label>   

  </form>
</body>
</html>

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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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