Bagikan melalui

PagedControl.LoadItems Kejadian

  • Referensi

Definisi

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

Terjadi ketika kontrol dipaginasi khusus dan membutuhkan lebih banyak data. API ini kedaluarsa. Untuk informasi tentang cara mengembangkan aplikasi seluler ASP.NET, lihat Situs & Mobile Apps dengan ASP.NET.

public:
 event System::Web::UI::MobileControls::LoadItemsEventHandler ^ LoadItems;
public event System.Web.UI.MobileControls.LoadItemsEventHandler LoadItems;
member this.LoadItems : System.Web.UI.MobileControls.LoadItemsEventHandler 
Public Custom Event LoadItems As LoadItemsEventHandler

Jenis Acara

LoadItemsEventHandler

Contoh

Contoh berikut menunjukkan cara menggunakan ItemsPerPage properti untuk merender delapan item dari daftar 200 item per 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">
    // Called by the List whenever it needs new items
    private void LoadNow(object sender, LoadItemsEventArgs e)
    {
        int j = e.ItemIndex;
        int estItemSize = 110;

        // Get the optimum page weight for the device
        int wt = Form1.Adapter.Page.Adapter.OptimumPageWeight;
        // Get the number of items per page
        List1.ItemsPerPage = wt / estItemSize;
 
        // Clear the current items
        List1.Items.Clear();

        // Build a section of the array
        ArrayList arr= new ArrayList();
        for (int i = 1; i <= e.ItemCount; i++)
        {
            int v = i + j;
            arr.Add((v.ToString() + " List Item"));
        }

        // Assign the array to the list
        List1.DataSource = arr;
        List1.DataBind();
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<body>
    <mobile:Form id="Form1" runat="server" Paginate="true">
        <mobile:List id="List1" runat="server" 
            ItemCount="200" onLoadItems="LoadNow" />
    </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">
    ' Called by the List whenever it needs new items
    Private Sub LoadNow(ByVal sender As Object, _
        ByVal e As LoadItemsEventArgs)
        
        Dim i, j As Integer
        i = 0
        j = e.ItemIndex
        Dim estItemSize As Integer = 110

        ' Get the optimum page weight for the device
        Dim wt As Integer = _
            form1.Adapter.Page.Adapter.OptimumPageWeight
        ' Get the number of items per page
        List1.ItemsPerPage = wt / estItemSize

        ' Clear the current items
        List1.Items.Clear()
        
        ' Build a section of the array
        Dim arr As New ArrayList()
        For i = 1 To e.ItemCount
            arr.Add(j + i)
        Next
        
        ' Assign the array to the list
        List1.DataSource = arr
        List1.DataBind()
    End Sub

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<body>
    <mobile:form id="form1" runat="server" Paginate="true">
        <mobile:List id="List1" runat="server" 
            ItemCount="200" onLoadItems="LoadNow" 
            ItemsPerPage="8" />
    </mobile:form>
</body>
</html>

Keterangan

Ketika kontrol dipaginasi khusus, Anda tidak secara eksplisit mengikat kontrol. Setelah penomoran halaman, kontrol mengangkat peristiwa ini, menunjukkan bagian data apa yang diperlukan. Aplikasi dapat menangani peristiwa ini dan mengikat kontrol dengan data yang diperlukan.

Berlaku untuk

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