HttpCapabilitiesBase.BackgroundSounds Proprietà

Definizione

Ottiene un valore che indica se il browser supporta la riproduzione di suoni di sottofondo mediante l'elemento <bgsounds> HTML.Gets a value indicating whether the browser supports playing background sounds using the <bgsounds> HTML element.

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

Valore della proprietà

Boolean

true se il browser supporta la riproduzione di suoni in background. In caso contrario, false.true if the browser supports playing background sounds; otherwise, false. Il valore predefinito è false.The default is false.

Esempio

Nell'esempio di codice seguente viene illustrato come determinare se il browser supporta la riproduzione di suoni in background.The following code example shows how to determine whether the browser supports playing background sounds.

<%@ 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).BackgroundSounds)
        {
            labelText = "Browser supports BackgroundSounds";
        }
        else
        {
            labelText = "Browser does not support BackgroundSounds";
        }

        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

    Sub CheckBrowserCaps()

        Dim labelText As String = ""
        Dim myBrowserCaps As System.Web.HttpBrowserCapabilities = Request.Browser
        If (CType(myBrowserCaps, System.Web.Configuration.HttpCapabilitiesBase)).BackgroundSounds Then
            labelText = "Browser supports BackgroundSounds"
        Else
            labelText = "Browser does not support BackgroundSounds"
        End If

        Label1.Text = labelText

    End Sub '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>

Si applica a