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MobilePage.ActiveForm Properti

Definisi

Mendapatkan atau mengatur formulir halaman yang saat ini aktif. API ini kedaluarsa. Untuk informasi tentang cara mengembangkan aplikasi seluler ASP.NET, lihat Situs & Mobile Apps dengan ASP.NET.

public:
 property System::Web::UI::MobileControls::Form ^ ActiveForm { System::Web::UI::MobileControls::Form ^ get(); void set(System::Web::UI::MobileControls::Form ^ value); };
[System.ComponentModel.Bindable(false)]
[System.ComponentModel.Browsable(false)]
public System.Web.UI.MobileControls.Form ActiveForm { get; set; }
[<System.ComponentModel.Bindable(false)>]
[<System.ComponentModel.Browsable(false)>]
member this.ActiveForm : System.Web.UI.MobileControls.Form with get, set
Public Property ActiveForm As Form

Nilai Properti

Formulir halaman saat ini aktif.

Atribut

Pengecualian

Halaman tidak berisi formulir apa pun.

Contoh

Contoh berikut menunjukkan cara menggunakan ActiveForm properti Form kontrol. Jika perangkat seluler saat ini memungkinkan kunci akses untuk kontrol, tombol akan menampilkan kunci akses yang mengirimkan formulir.

Catatan

Sampel kode berikut menggunakan model kode file tunggal dan mungkin tidak berfungsi dengan benar jika disalin langsung ke file code-behind. Sampel kode ini harus disalin ke dalam file teks kosong yang memiliki ekstensi .aspx. Untuk informasi selengkapnya, lihat Model Kode Halaman Formulir Web ASP.NET.

<%@ Page Language="C#" 
    Inherits="System.Web.UI.MobileControls.MobilePage" %>
<%@ Register TagPrefix="mobile" 
    Namespace="System.Web.UI.MobileControls" 
    Assembly="System.Web.Mobile" %>
<%@ Import Namespace="System.Web.Mobile" %>

<script runat="server">
    // <Snippet2>
    private void Command_OnClick(object sender, EventArgs e)
    {
        // Display the other form
        if (ActiveForm.ID == "Form1")
            ActiveForm = Form2;
        else
            ActiveForm = Form1;
    }
    // </Snippet2>

    public bool isAccessKey(MobileCapabilities caps, 
        string optValue)
    {
        // Determine if the browser is not a Web crawler 
        // and can use access keys
        if (!caps.Crawler && caps.SupportsAccesskeyAttribute)
            return true;
        return false;
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<body>
    <mobile:Form runat="server" id="Form1" >
        <mobile:Label Runat="server">This is Form1</mobile:Label>
        <mobile:Command id="cmd1" runat="server" Text="No AccessKey" 
            onClick="Command_OnClick">
            <DeviceSpecific>
               <Choice Filter="isAccessKey" Text="AccessKey is 1"/>
            </DeviceSpecific>
        </mobile:Command>
        <mobile:Label id="Label1" runat="server" />
    </mobile:Form>
    <mobile:Form ID="Form2" Runat="server">
        <mobile:Label Runat="server">This is Form2</mobile:Label>
        <mobile:Command id="cmd2" runat="server" text="Back to Form1"
            onClick="Command_OnClick">
            <DeviceSpecific>
                <Choice Filter="isAccessKey" Text="1 is AccessKey" AccessKey="1" />
            </DeviceSpecific>
        </mobile:Command>
    </mobile:Form>
</body>
</html>
<%@ Page Language="VB" 
    Inherits="System.Web.UI.MobileControls.MobilePage" %>
<%@ Register TagPrefix="mobile" 
    Namespace="System.Web.UI.MobileControls" 
    Assembly="System.Web.Mobile" %>
<%@ Import Namespace="System.Web.Mobile" %>

<script runat="server">
    ' <Snippet2>
    Private Sub Command_OnClick(ByVal sender As Object, ByVal e As EventArgs)
        ' Display the other form
        If ActiveForm.ID = "Form1" Then
            ActiveForm = Form2
        Else
            ActiveForm = Form1
        End If
    End Sub
    ' </Snippet2>

    Public Function isAccessKey(ByVal caps As MobileCapabilities, _
        ByVal optValue As String) As Boolean
        
        ' Determine if the browser is not a Web crawler 
        ' and can use access keys
        If Not caps.Crawler AndAlso caps.SupportsAccesskeyAttribute Then
            Return True
        End If
        Return False
    End Function

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<body>
    <mobile:Form runat="server" id="Form1" >
        <mobile:Label ID="Label1" Runat="server">This is Form1</mobile:Label>
        <mobile:Command id="cmd1" runat="server" Text="No AccessKey" 
            onClick="Command_OnClick">
            <DeviceSpecific>
               <Choice Filter="isAccessKey" Text="AccessKey is 1"/>
            </DeviceSpecific>
        </mobile:Command>
        <mobile:Label id="Label2" runat="server" />
    </mobile:Form>
    <mobile:Form ID="Form2" Runat="server">
        <mobile:Label ID="Label3" Runat="server">This is Form2</mobile:Label>
        <mobile:Command id="cmd2" runat="server" text="Back to Form1"
            onClick="Command_OnClick">
            <DeviceSpecific>
                <Choice Filter="isAccessKey" Text="1 is AccessKey" AccessKey="1" />
            </DeviceSpecific>
        </mobile:Command>
    </mobile:Form>
</body>
</html>

Keterangan

Saat halaman awalnya dirender, formulir pertama di halaman secara otomatis dibuat aktif. Pada postback berikutnya, formulir lain mungkin dibuat aktif, baik dengan mengatur properti ini secara terprogram, atau sebagai hasil navigasi pengguna melalui Link kontrol.

Berlaku untuk

Lihat juga