HttpCapabilitiesBase.RequiresLeadingPageBreak 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網頁主體的第一個項目為 HTML <br> 項目。

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

屬性值

Boolean

如果瀏覽器要求網頁主體中的第一個項目為 HTML BR 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網頁主體中的第一個專案成為 HTML <br> 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).RequiresLeadingPageBreak)
        {
            labelText = "Browser requires that the first element in the body of a web page be an HTML BR element.";
        }
        else
        {
            labelText = "Browser does not require that the first element in the body of a web page be an HTML BR element.";
        }

        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)).RequiresLeadingPageBreak Then
            labelText = "Browser requires that the first element in the body of a web page be an HTML BR element."
        Else
            labelText = "Browser does not require that the first element in the body of a web page be an HTML BR element."
        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 ，則伺服器控制配接器會在網頁中緊接在 標籤後面 <body> 插入其他 <br> 元素。

適用於