HttpCapabilitiesBase.RequiresUniqueFilePathSuffix 属性

定义

获取一个值,该值指示浏览器是否需要唯一的窗体-操作 URL。

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

属性值

Boolean

如果浏览器需要唯一表单操作 URL,则为 true;否则为 false。 默认值为 false

示例

下面的代码示例演示如何确定浏览器是否需要唯一的表单操作 URL。

<%@ 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).RequiresUniqueFilePathSuffix)
        {
            labelText = "Browser requires FORM ACTION URLs be unique.";
        }
        else
        {
            labelText = "Browser does not require FORM ACTION URLs be unique.";
        }

        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)).RequiresUniqueFilePathSuffix Then
            labelText = "Browser requires FORM ACTION URLs be unique."
        Else
            labelText = "Browser does not require FORM ACTION URLs be unique."
        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>

注解

自引用 HTML <form> 元素是属性 action 为其指定其自己的 URL 的元素。 如果 true,自引用表单不返回正确的结果。 这是因为浏览器或中间网关的缓存。 为此,服务器控制适配器会将默认查询字符串追加到自引用窗体的表单操作 URL 值 (__ufps=``uniquefilepathsuffix) 。

适用于