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Repeater.Items Eigenschaft

Definition

Ruft eine Auflistung von RepeaterItem-Objekten im Repeater-Steuerelement ab.

public:
 virtual property System::Web::UI::WebControls::RepeaterItemCollection ^ Items { System::Web::UI::WebControls::RepeaterItemCollection ^ get(); };
[System.ComponentModel.Browsable(false)]
public virtual System.Web.UI.WebControls.RepeaterItemCollection Items { get; }
[<System.ComponentModel.Browsable(false)>]
member this.Items : System.Web.UI.WebControls.RepeaterItemCollection
Public Overridable ReadOnly Property Items As RepeaterItemCollection

Eigenschaftswert

RepeaterItemCollection

Eine Auflistung von RepeaterItem-Objekten. Standard ist eine leere RepeaterItemCollection.

Attribute

Beispiele

Im folgenden Beispiel wird veranschaulicht, wie Die Items Eigenschaft verwendet wird, um den Index des elements zu bestimmen, das aus dem Repeater Steuerelement ausgewählt ist.

<%@ Page Language="C#" AutoEventWireup="True" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
 <head>
    <title>Repeater Example</title>
<script language="C#" runat="server">
       void Page_Load(Object Sender, EventArgs e) {
 
          if (!IsPostBack) {
             ArrayList values = new ArrayList();
 
             values.Add(new PositionData("Microsoft", "Msft"));
             values.Add(new PositionData("Intel", "Intc"));
             values.Add(new PositionData("Dell", "Dell"));
 
             Repeater1.DataSource = values;
             Repeater1.DataBind();
          }
       }
 
       void R1_ItemCommand(Object Sender, RepeaterCommandEventArgs e) {        
          Label2.Text = "Button " + Repeater1.Items[e.Item.ItemIndex].ItemIndex.ToString() + 
                        " has just been clicked! <br />";
       }    
 
       public class PositionData {
         
          private string name;
          private string ticker;
 
          public PositionData(string name, string ticker) {
             this.name = name;
             this.ticker = ticker;
          }
 
          public string Name {
             get {
                return name;
             }
          }
 
          public string Ticker {
             get {
                return ticker;
             }
          }
       }
 
    </script>
 
 </head>
 <body>
 
    <h3>Repeater Example</h3>
 
    <form id="form1" runat="server">
 
       <b>Repeater1:</b>
         
       <br />
         
       <asp:Repeater id="Repeater1" 
                     OnItemCommand="R1_ItemCommand" 
                     runat="server">
          <HeaderTemplate>
             <table border="1">
                <tr>
                   <td><b>Company</b></td>
                   <td><b>Symbol</b></td>
                </tr>
          </HeaderTemplate>
             
          <ItemTemplate>
             <tr>
                <td> <%# DataBinder.Eval(Container.DataItem, "Name") %> </td>
                <td> <asp:Button Text=<%# DataBinder.Eval(Container.DataItem, "Ticker") %> 
                          runat="server" /></td>
             </tr>
          </ItemTemplate>
             
          <FooterTemplate>
             </table>
          </FooterTemplate>
             
       </asp:Repeater>
       <br />
         
       <asp:Label id="Label2" 
            style="font-family:Verdana; color:Green; font-size:medium"
            runat="server"/>
    </form>
 </body>
 </html>
<%@ Page Language="VB" AutoEventWireup="True" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
 <head>
    <title>Repeater Example</title>
<script language="VB" runat="server">

    Sub Page_Load(Sender As Object, e As EventArgs)
        
        If Not IsPostBack Then
            Dim values As New ArrayList()
            
            values.Add(New PositionData("Microsoft", "Msft"))
            values.Add(New PositionData("Intel", "Intc"))
            values.Add(New PositionData("Dell", "Dell"))
            
            Repeater1.DataSource = values
            Repeater1.DataBind()
        End If
    End Sub

    Sub R1_ItemCommand(Sender As Object, e As RepeaterCommandEventArgs)
        Label2.Text = "Button " & _
            Repeater1.Items(e.Item.ItemIndex).ItemIndex.ToString() & _
            " has just been clicked! <br />"
    End Sub
 
    Public Class PositionData
        
        Private myName As String
        Private myTicker As String        
        
        Public Sub New(newName As String, newTicker As String)
            Me.myName = newName
            Me.myTicker = newTicker
        End Sub        
        
        Public ReadOnly Property Name() As String
            Get
                Return myName
            End Get
        End Property        
        
        Public ReadOnly Property Ticker() As String
            Get
                Return myTicker
            End Get
        End Property
    End Class

 
    </script>
 
 </head>
 <body>
 
    <h3>Repeater Example</h3>
 
    <form id="form1" runat="server">
 
       <b>Repeater1:</b>
         
       <br />
         
       <asp:Repeater id="Repeater1" 
                     OnItemCommand="R1_ItemCommand" 
                     runat="server">
          <HeaderTemplate>
             <table border="1">
                <tr>
                   <td><b>Company</b></td>
                   <td><b>Symbol</b></td>
                </tr>
          </HeaderTemplate>
             
          <ItemTemplate>
             <tr>
                <td> <%# DataBinder.Eval(Container.DataItem, "Name") %> </td>
                <td> <asp:Button Text=<%# DataBinder.Eval(Container.DataItem, "Ticker") %> 
                          runat="server" /></td>
             </tr>
          </ItemTemplate>
             
          <FooterTemplate>
             </table>
          </FooterTemplate>
             
       </asp:Repeater>
       <br />
         
       <asp:Label id="Label2" 
            style="font-family:Verdana; color:Green; font-size:medium"
            runat="server"/>
    </form>
 </body>
 </html>

Hinweise

Das Repeater Steuerelement füllt die Items Auflistung auf, indem jedes Objekt in seinem DataSourceObjekt aufgezählt wird. Die Items Auflistung wird dann vom Repeater Steuerelement verwendet, um jedes Element im Steuerelement zu rendern.

Gilt für

Siehe auch