Bagikan melalui

Command.ItemCommand Kejadian

  • Referensi

Definisi

Ruang nama:
System.Web.UI.MobileControls
Rakitan:
System.Web.Mobile.dll

Terjadi ketika pengguna memilih perintah yang terkait dengan ObjectList item. API ini kedaluarsa. Untuk informasi tentang cara mengembangkan aplikasi seluler ASP.NET, lihat Situs & Mobile Apps dengan ASP.NET.

public:
 event System::Web::UI::WebControls::CommandEventHandler ^ ItemCommand;
public event System.Web.UI.WebControls.CommandEventHandler ItemCommand;
member this.ItemCommand : System.Web.UI.WebControls.CommandEventHandler 
Public Custom Event ItemCommand As CommandEventHandler

Jenis Acara

CommandEventHandler

Contoh

Contoh kode berikut menunjukkan cara menggunakan ItemCommand peristiwa untuk beberapa perintah di halaman.

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

<script runat="server">
    void cmd_OnItemCommand(object sender, CommandEventArgs e)
    {
        // Create variables for data
        string txt1 = "Today's quote of {0} is {1}";
        string txt2 = "Yesterday's quote of {0} was {1}";
        int val = (Convert.ToInt32(e.CommandArgument) - 5);
        
        // Set the text values of the labels
        message1.Text = String.Format(txt1, e.CommandName, 
            e.CommandArgument);
        message2.Text = String.Format(txt2, e.CommandName, val);
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<body>
    <mobile:form id="form1" runat="server">
        <p>
            <mobile:label id="message1" runat="server">
                Click the button for quotes
            </mobile:label>
            <mobile:label id="message2" runat="server" />
        </p>
        <mobile:command id="CmdA" Format="Link" 
            onItemCommand ="cmd_OnItemCommand" 
            CommandArgument="70" CommandName="ca" 
            runat="server" Text="Company A" />
        <mobile:command id="CmdB" Format="Link" 
            onItemCommand ="cmd_OnItemCommand" 
            CommandArgument="25" CommandName="cb" 
            runat="server" Text="Company B" />
        <mobile:command id="CmdC" Format="Button" 
            OnItemCommand ="cmd_OnItemCommand" 
            CommandArgument="110" CommandName="cc" 
            runat="server" Text= "Company C" />
    </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" %>

<script runat="server">
    Private Sub cmd_OnItemCommand(ByVal sender As Object, ByVal e As CommandEventArgs)
        ' Create variables for data
        Dim txt1 As String = "Today's quote of {0} is {1}"
        Dim txt2 As String = "Yesterday's quote of {0} was {1}"
        Dim Val As Integer = (Convert.ToInt32(e.CommandArgument) - 5)
        
        ' Set the text values of the labels
        message1.Text = String.Format(txt1, e.CommandName, _
            e.CommandArgument)
        message2.Text = String.Format(txt2, e.CommandName, Val)
    End Sub
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<body>
    <mobile:form id="form1" runat="server">
        <p>
            <mobile:label id="message1" runat="server">
                Click the button for quotes
            </mobile:label>
            <mobile:label id="message2" runat="server" />
        </p>
        <mobile:command id="CmdA" Format="Link" 
            onItemCommand="cmd_OnItemCommand"
            CommandArgument="70" CommandName="ca" 
            runat="server" Text="Company A" />
        <mobile:command id="CmdB" Format="Link"
            onItemCommand ="cmd_OnItemCommand" 
            CommandArgument="25" CommandName="cb" 
            runat="server" Text="Company B" />
        <mobile:command id="CmdC" Format="Button" 
            OnItemCommand="cmd_OnItemCommand"
            CommandArgument="110" CommandName="cc" 
            runat="server" Text="Company C" />
    </mobile:form>
</body>
</html>

Keterangan

ItemCommand Saat penanganan aktivitas ditentukan, Command kontrol akan memberi tahu handler saat peristiwa item dihasilkan melalui interaksi pengguna.

Click Tidak seperti peristiwa, ItemCommand peristiwa digelembungkan ke kontrol induk. Penyajian ItemCommand peristiwa khusus perangkat dan dibahas secara rinci di bagian "Perilaku Khusus Perangkat" dari System.Web.UI.MobileControls.Command.

Acara OnItemCommand dimunculkan setelah acara OnClick . Dalam skenario di mana Anda mengulangi serangkaian tindakan yang sama setiap kali tombol perintah diklik, Anda dapat menggunakan CommandName properti Command atau CommandArgument kontrol untuk mengidentifikasi tombol perintah mana yang diklik pengguna.

Berlaku untuk

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