Repeater.CreateItem(Int32, ListItemType) Método

Referencia

Definición

Espacio de nombres:: System.Web.UI.WebControls

Ensamblado:: System.Web.dll

Importante

Parte de la información hace referencia a la versión preliminar del producto, que puede haberse modificado sustancialmente antes de lanzar la versión definitiva. Microsoft no otorga ninguna garantía, explícita o implícita, con respecto a la información proporcionada aquí.

Crea un objeto RepeaterItem con el tipo de elemento y la ubicación especificados dentro del control Repeater.

protected:
 virtual System::Web::UI::WebControls::RepeaterItem ^ CreateItem(int itemIndex, System::Web::UI::WebControls::ListItemType itemType);

protected virtual System.Web.UI.WebControls.RepeaterItem CreateItem (int itemIndex, System.Web.UI.WebControls.ListItemType itemType);

abstract member CreateItem : int * System.Web.UI.WebControls.ListItemType -> System.Web.UI.WebControls.RepeaterItem
override this.CreateItem : int * System.Web.UI.WebControls.ListItemType -> System.Web.UI.WebControls.RepeaterItem

Protected Overridable Function CreateItem (itemIndex As Integer, itemType As ListItemType) As RepeaterItem

Parámetros

itemIndex: Int32

Ubicación especificada dentro del control Repeater donde se va a colocar el elemento creado.

itemType: ListItemType

Un objeto ListItemType que representa el tipo especificado del elemento Repeater que se crea.

Devoluciones

RepeaterItem

El nuevo objeto RepeaterItem .

Ejemplos

En el ejemplo de código siguiente se muestra cómo invalidar el CreateItem método en un control de servidor personalizado para que siempre devuelva un índice y un tipo nuevos RepeaterItem y correspondientes en un control de servidor personalizado Repeater .

<%@ Register TagPrefix="aspSample" Namespace="Samples.AspNet.CS.Controls" Assembly="Samples.AspNet.CS" %>
<%@ 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>Custom Repeater - CreateItem - C# 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();
        }
      }

      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>
        <form id="Form1" method="post" runat="server">
            <h3>Custom Repeater - CreateItem - C# Example</h3>
            
            <aspSample:CustomRepeaterCreateItem id="Repeater1" runat="server">
              <HeaderTemplate>
                <table border="1" cellpadding="4" cellspacing="0">
                  <tr>
                    <th>Company</th>
                    <th>Symbol</th>
                  </tr>
              </HeaderTemplate>
              <ItemTemplate>
                <tr>
                  <td> <%# DataBinder.Eval(Container.DataItem, "Name") %></td>
                  <td> <%# DataBinder.Eval(Container.DataItem, "Ticker") %></td>
                </tr>
              </ItemTemplate>
              <FooterTemplate>
                </table>
              </FooterTemplate>
          </aspSample:CustomRepeaterCreateItem>
       </form>
    </body>
</html>

<%@ Register TagPrefix="aspSample" Namespace="Samples.AspNet.VB.Controls" Assembly="Samples.AspNet.VB" %>
<%@ 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>Custom Repeater - CreateItem - VB.NET 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

            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>
        <form id="Form1" method="post" runat="server">
            <h3>Custom Repeater - CreateItem - VB.NET Example</h3>
            
            <aspSample:CustomRepeaterCreateItem id="Repeater1" runat="server" >
                    <HeaderTemplate>
                        <table border="1" cellpadding="4" cellspacing="0">
                            <tr>
                                <th>Company</th>
                                <th>Symbol</th>
                            </tr>
                    </HeaderTemplate>
                    <ItemTemplate>
                        <tr>
                            <td> <%# DataBinder.Eval(Container.DataItem, "Name") %></td>
                            <td> <%# DataBinder.Eval(Container.DataItem, "Ticker") %></td>
                        </tr>
                    </ItemTemplate>
                    <FooterTemplate>
                        </table>
                    </FooterTemplate>
                </aspSample:CustomRepeaterCreateItem>
        </form>
    </body>
</html>

using System.Web;
using System.Security.Permissions;

namespace Samples.AspNet.CS.Controls
{
  [AspNetHostingPermission(SecurityAction.Demand, Level=AspNetHostingPermissionLevel.Minimal)]
  public sealed class CustomRepeaterCreateItem : System.Web.UI.WebControls.Repeater
  {
    protected override System.Web.UI.WebControls.RepeaterItem CreateItem(int itemIndex, System.Web.UI.WebControls.ListItemType itemType)
    {
      // Return a new RepeaterItem with the corresponding item index and type.
      return new System.Web.UI.WebControls.RepeaterItem(itemIndex, itemType);
    }
  }
}

Imports System.Web
Imports System.Security.Permissions

Namespace Samples.AspNet.VB.Controls
    <AspNetHostingPermission(SecurityAction.Demand, Level:=AspNetHostingPermissionLevel.Minimal)> _
    Public NotInheritable Class CustomRepeaterCreateItem
        Inherits System.Web.UI.WebControls.Repeater

        Protected Overrides Function CreateItem(ByVal itemIndex As Integer, ByVal itemType As System.Web.UI.WebControls.ListItemType) As System.Web.UI.WebControls.RepeaterItem

            ' Return a new RepeaterItem with the corresponding item index and type.
            Return New System.Web.UI.WebControls.RepeaterItem(itemIndex, itemType)
        End Function
    End Class
End Namespace

Se aplica a

Consulte también

Información general sobre el control de servidor web repeater

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