Repeater.ItemCreated Evento

  • Referência

Definição

Namespace:
System.Web.UI.WebControls
Assembly:
System.Web.dll

Ocorre quando um item é criado no controle Repeater.

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

Tipo de evento

RepeaterItemEventHandler

Exemplos

O exemplo a seguir demonstra como especificar e codificar um manipulador para o ItemCreated evento do Repeater controle. Uma nova linha de texto indicando que o tipo de item é exibido sempre que um Repeater item é criado.

<%@ 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">
       int Count = 1;
       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_ItemCreated(Object Sender, RepeaterItemEventArgs e) {
          String iTypeText = "";
 
          switch (e.Item.ItemType) {
             case ListItemType.Item:
                iTypeText = "Item";
                break;
             case ListItemType.AlternatingItem:
                iTypeText = "AlternatingItem";
                break;
             case ListItemType.Header:
                iTypeText = "Header";
                break;
             case ListItemType.Footer:
                iTypeText = "Footer";
                break;
             case ListItemType.Separator:
                iTypeText = "Separator";
                break;
          }
          Label1.Text += "(" + Count++ + ") A Repeater " + iTypeText + " has been created; <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" OnItemCreated="R1_ItemCreated" 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> <%# DataBinder.Eval(Container.DataItem, "Ticker") %> </td>
             </tr>
          </ItemTemplate>
             
          <FooterTemplate>
             </table>
          </FooterTemplate>
             
       </asp:Repeater>
       <br />
         
       <asp:Label id="Label1" font-names="Verdana" ForeColor="Red" 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">
    Dim Count As Integer = 1

    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_ItemCreated(Sender As Object, e As RepeaterItemEventArgs)
        Dim iTypeText As String = ""
        
        Select Case e.Item.ItemType
            Case ListItemType.Item
                iTypeText = "Item"
            Case ListItemType.AlternatingItem
                iTypeText = "AlternatingItem"
            Case ListItemType.Header
                iTypeText = "Header"
            Case ListItemType.Footer
                iTypeText = "Footer"
            Case ListItemType.Separator
                iTypeText = "Separator"
        End Select
        Count = Count + 1
        Label1.Text &= "(" & Count & ") A Repeater " & iTypeText & _
            " has been created; <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 'New
        
        
        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" OnItemCreated="R1_ItemCreated" 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> <%# DataBinder.Eval(Container.DataItem, "Ticker") %> </td>
             </tr>
          </ItemTemplate>
             
          <FooterTemplate>
             </table>
          </FooterTemplate>
             
       </asp:Repeater>
       <br />
         
       <asp:Label id="Label1" font-names="Verdana" ForeColor="Red" font-size="10pt" runat="server"/>
    </form>
 </body>
 </html>

Comentários

Esse evento é gerado quando um item é criado no Repeater controle .

Para obter mais informações sobre como lidar com eventos, consulte Manipulando e levantando eventos.

Aplica-se a

Confira também