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Repeater.OnItemCommand(RepeaterCommandEventArgs) Méthode

Définition

Déclenche l’événement ItemCommand.

protected:
 virtual void OnItemCommand(System::Web::UI::WebControls::RepeaterCommandEventArgs ^ e);
protected virtual void OnItemCommand (System.Web.UI.WebControls.RepeaterCommandEventArgs e);
abstract member OnItemCommand : System.Web.UI.WebControls.RepeaterCommandEventArgs -> unit
override this.OnItemCommand : System.Web.UI.WebControls.RepeaterCommandEventArgs -> unit
Protected Overridable Sub OnItemCommand (e As RepeaterCommandEventArgs)

Paramètres

e
RepeaterCommandEventArgs

Objet RepeaterCommandEventArgs qui contient les données d’événement.

Exemples

L’exemple suivant illustre une façon de gérer un ItemCommand événement du Repeater contrôle. Des informations sur le bouton s’affichent chaque fois qu’un Button contrôle dans le Repeater contrôle est cliqué.

<%@ 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">
<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 = "The " + ((Button)e.CommandSource).Text + " button 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>
<html xmlns="http://www.w3.org/1999/xhtml" >
 <head>
    <title>Repeater Example</title>
 </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" font-names="Verdana" ForeColor="Green" font-size="10pt" 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 = "The " & CType(e.CommandSource, Button).Text & _
            " button 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" font-names="Verdana" ForeColor="Green" font-size="10pt" runat="server"/>
    </form>
 </body>
 </html>

Remarques

Le déclenchement d'un événement appelle le gestionnaire des événements par l'intermédiaire d'un délégué. Pour plus d’informations sur la façon de gérer les événements, consultez gestion et déclenchement d’événements.

Notes pour les héritiers

Lors de la substitution OnItemCommand(RepeaterCommandEventArgs) dans une classe dérivée, veillez à appeler la méthode de la classe de OnItemCommand(RepeaterCommandEventArgs) base.

S’applique à

Voir aussi