HttpCapabilitiesBase.SupportsAccesskeyAttribute 属性

定义

获取一个值,该值指示浏览器是否支持 HTML <a>(定位点)和 <input> 元素的 ACCESSKEY 特性。Gets a value indicating whether the browser supports the ACCESSKEY attribute of HTML <a> (anchor) and <input> elements.

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

属性值

Boolean

如果浏览器支持 HTML <a>(定位点)和 <input> 元素的 accesskey 特性,则为 true;否则为 falsetrue if the browser supports the accesskey attribute of HTML <a> (anchor) and <input> elements; otherwise, false. 默认值为 falseThe default is false.

示例

下面的代码示例演示如何确定浏览器是否支持 accesskey HTML <a> (定位点) 和元素的特性 <input>The following code example shows how to determine whether the browser supports the accesskey attribute of HTML <a> (anchor) and <input> elements.

<%@ 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).SupportsAccesskeyAttribute)
        {
            labelText = "Browser supports the ACCESSKEY attribute of HTML A(anchor) and INPUT elements.";
        }
        else
        {
            labelText = "Browser does not support the ACCESSKEY attribute of HTML A(anchor) and INPUT elements.";
        }

        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)).SupportsAccesskeyAttribute Then
            labelText = "Browser supports the ACCESSKEY attribute of HTML A(anchor) and INPUT elements."
        Else
            labelText = "Browser does not support the ACCESSKEY attribute of HTML A(anchor) and INPUT elements."
        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

accesskey 属性通过在设备上分配软密钥或其他控制器来与 HTML <a> (定位点) 和元素进行交互,将网页上表单和链接的控制扩展到移动和可访问的平台 <input>The accesskey attribute extends control of forms and links on a Web page to mobile and accessible platforms by assigning a soft key or other controller on the device to interact with HTML <a> (anchor) and <input> elements.

适用于