HttpCapabilitiesBase.CanInitiateVoiceCall Eigenschaft

Definition

Ruft einen Wert ab, der angibt, ob das Browsergerät einen Sprachanruf einleiten kann.Gets a value indicating whether the browser device is capable of initiating a voice call.

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

Eigenschaftswert

true, wenn das Browsergerät einen Sprachanruf initiieren kann, andernfalls false.true if the browser device is capable of initiating a voice call; otherwise, false. Die Standardeinstellung ist false.The default is false.

Beispiele

Im folgenden Codebeispiel wird gezeigt, wie Sie bestimmen können, ob das Browser Gerät einen Sprachanruf initiieren kann.The following code example shows how to determine whether the browser device is capable of initiating a voice call.

<%@ 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).CanInitiateVoiceCall)
        {
            labelText = "Browser can initiate a voice call.";
        }
        else
        {
            labelText = "Browser cannot initiate a voice call.";
        }

        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)).CanInitiateVoiceCall Then
            labelText = "Browser can initiate a voice call."
        Else
            labelText = "Browser cannot initiate a voice call."
        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>

Hinweise

Die CanInitiateVoiceCall-Eigenschaft gilt nur für WML-kompatible mobile Geräte.The CanInitiateVoiceCall property applies only to WML-compatible mobile devices.

Gilt für: