Page.Header 屬性

  • 參考

定義

命名空間:
System.Web.UI
組件:
System.Web.dll

取得頁面的文件標頭，如果在頁面宣告中使用 head 定義 runat=server 項目。

public:
 property System::Web::UI::HtmlControls::HtmlHead ^ Header { System::Web::UI::HtmlControls::HtmlHead ^ get(); };
[System.ComponentModel.Browsable(false)]
public System.Web.UI.HtmlControls.HtmlHead Header { get; }
[<System.ComponentModel.Browsable(false)>]
member this.Header : System.Web.UI.HtmlControls.HtmlHead
Public ReadOnly Property Header As HtmlHead

屬性值

HtmlHead

包含頁面標頭的 HtmlHead。

屬性
BrowsableAttribute

範例

下列程式碼範例示範如何使用 屬性，以程式設計方式 Header 存取 HtmlHead 控制項。 元素 title 和 style 元素會新增至 head 頁面的 元素。

<%@ 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;

      // <Snippet2>
      // 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");
      // </Snippet2>
 
      // 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>

<%@ Page Language="VB" %>

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

<script runat="server">
    
    Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)
        
        ' Create a Style object for the body of the page.
        Dim bodyStyle As New Style()
        
        bodyStyle.ForeColor = System.Drawing.Color.Blue
        bodyStyle.BackColor = System.Drawing.Color.LightGray

        ' <Snippet2>
        ' 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, Nothing, "body")
        ' </Snippet2>
            
        ' Add the page title to the header element.
        Page.Header.Title = "HtmlHead Example"

    End Sub

</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>

備註

屬性 Header 會取得物件的參考 HtmlHead ，可用來設定頁面的檔頁首資訊。 HtmlHead可讓您將樣式表單、樣式規則、標題和中繼資料等資訊新增至 head 元素。

注意

不支援在非同步回傳期間，以程式設計方式使用 介面的方法 IStyleSheet 新增樣式。 當您將 AJAX 功能新增至網頁時，非同步回傳會更新頁面的區域，而不更新整個頁面。 如需詳細資訊，請參閱Microsoft Ajax 概觀。

適用於

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