HttpCapabilitiesBase.CanRenderMixedSelects Proprietà

Definizione

Spazio dei nomi:
System.Web.Configuration
Assembly:
System.Web.dll

Ottiene un valore che indica se il browser supporta gli elementi <option> WML che specificano attributi onpick e value.Gets a value indicating whether the browser supports WML <option> elements that specify both onpick and value attributes.

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

Valore della proprietà

Boolean

true se il browser supporta gli elementi <option> WLM che specificano entrambi gli attributi onpick e value. In caso contrario, false.true if the browser supports WML <option> elements that specify both onpick and value attributes; otherwise, false. Il valore predefinito è true.The default is true.

Esempio

Nell'esempio di codice seguente viene illustrato come determinare se il browser supporta gli <option> elementi HTML che specificano entrambi onpick value gli attributi e.The following code example shows how to determine whether the browser supports HTML <option> elements that specify both onpick and value attributes.

<%@ 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).CanRenderMixedSelects)
        {
            labelText = "Browser supports HTML OPTION elements which specify both ONPICK and VALUE attributes.";
        }
        else
        {
            labelText = "Browser does not support HTML OPTION elements which specify both ONPICK and VALUE attributes.";
        }

        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)).CanRenderMixedSelects Then
            labelText = "Browser supports HTML OPTION elements which specify both ONPICK and VALUE attributes."
        Else
            labelText = "Browser does not support HTML OPTION elements which specify both ONPICK and VALUE attributes."
        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>

Commenti

La CanRenderMixedSelects proprietà si applica solo ai dispositivi mobili compatibili con WML.The CanRenderMixedSelects property applies only to WML-compatible mobile devices.

Se false , onpick i valori vengono visualizzati come collegamenti ipertestuali e value gli attributi richiedono un <do> elemento per il postback.If false, onpick values are displayed as hyperlinks and value attributes require a <do> element for postback.

Si applica a