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HttpCapabilitiesBase.HasBackButton Property

Gets a value indicating whether the browser has a dedicated Back button.

Namespace: System.Web.Configuration
Assembly: System.Web (in system.web.dll)

public virtual bool HasBackButton { get; }
/** @property */
public boolean get_HasBackButton ()

public function get HasBackButton () : boolean

Not applicable.

Property Value

true if the browser has a dedicated Back button; otherwise, false. The default is true.

If false, a link control might be necessary when a Back button is not available.

The following code example shows how to determine whether the browser has a dedicated Back button.

<%@ 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).HasBackButton)
        {
            labelText = "Browser has a dedicated back button.";
        }
        else
        {
            labelText = "Browser has no back button.";
        }

        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>

Windows 98, Windows Server 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0
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