HttpCapabilitiesBase.RequiresContentTypeMetaTag 屬性

  • 參考

定義

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

取得值，指出瀏覽器是否需要指定 <meta> 屬性的 HTML content-type 項目。

public:
 virtual property bool RequiresContentTypeMetaTag { bool get(); };
public virtual bool RequiresContentTypeMetaTag { get; }
member this.RequiresContentTypeMetaTag : bool
Public Overridable ReadOnly Property RequiresContentTypeMetaTag As Boolean

屬性值

Boolean

如果瀏覽器需要指定 content-type 屬性的 HTML <meta> 項目，則為 true；否則為 false。 預設為 false。

範例

下列程式碼範例示範如何判斷瀏覽器是否需要指定屬性的 content-type HTML <meta> 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">
    void Page_Load(Object Sender, EventArgs e)
    {
        CheckBrowserCaps();
    }

    void CheckBrowserCaps()
    {
        String labelText = "";
        System.Web.HttpBrowserCapabilities myBrowserCaps = Request.Browser;
        if (((System.Web.Configuration.HttpCapabilitiesBase)myBrowserCaps).RequiresContentTypeMetaTag)
        {
            labelText = "Browser requires an HTML META element whose CONTENT-TYPE attribute is specified.";
        }
        else
        {
            labelText = "Browser does not require an HTML META element whose CONTENT-TYPE attribute is specified.";
        }

        Label1.Text = labelText;
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
    <title>Browser Capabilities Sample</title>
</head>
<body>
    <form runat="server" id="form1">
        <div>
            Browser Capabilities:
            <p/><asp:Label ID="Label1" Runat="server" />
        </div>
    </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)
        CheckBrowserCaps()
    End Sub

    Function CheckBrowserCaps()

        Dim labelText As String = ""
        Dim myBrowserCaps As System.Web.HttpBrowserCapabilities = Request.Browser
        If (CType(myBrowserCaps, System.Web.Configuration.HttpCapabilitiesBase)).RequiresContentTypeMetaTag Then
            labelText = "Browser requires an HTML META element whose CONTENT-TYPE attribute is specified."
        Else
            labelText = "Browser does not require an HTML META element whose CONTENT-TYPE attribute is specified."
        End If

        Label1.Text = labelText

    End Function 'CheckBrowserCaps
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
    <title>Browser Capabilities Sample</title>
</head>
<body>
    <form runat="server" id="form1">
        <div>
            Browser Capabilities:
            <p/><asp:Label ID="Label1" Runat="server" />
        </div>
    </form>
</body>
</html>

備註

如果 true 為 ，伺服器控制項配接器會將下列標籤插入網頁的 HTML <head> 元素：

<META HTTP-EQUIV="CONTENT-TYPE" CONTENT=""; CHARSET="">

在此範例中， CONTENT 是 屬性傳 PreferredRenderingMime 回的值，而且 charset 是使用的字元編碼。

適用於