RepeaterItem.ItemType 属性

  • 参考

定义

命名空间:
System.Web.UI.WebControls
程序集:
System.Web.dll

获取 Repeater 控件中的项的类型。

public:
 virtual property System::Web::UI::WebControls::ListItemType ItemType { System::Web::UI::WebControls::ListItemType get(); };
public virtual System.Web.UI.WebControls.ListItemType ItemType { get; }
member this.ItemType : System.Web.UI.WebControls.ListItemType
Public Overridable ReadOnly Property ItemType As ListItemType

属性值

ListItemType

ListItemType 值之一。

示例

下面的示例演示如何使用 ItemType 属性来确定控件中 Repeater 项的项类型。 控件中创建 Repeater 项的顺序与项类型一起显示。

<%@ Page Language="C#" AutoEventWireup="True" %>
<%@ Import Namespace="System.Data" %>
<!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("Item 1", "$6.00"));
            values.Add(new PositionData("Item 2", "$7.48"));
            values.Add(new PositionData("Item 3", "$9.96"));
 
            Repeater1.DataSource = values;
            Repeater1.DataBind();
         }

      }
      void Button_Click(Object Sender, EventArgs e) 
      {        
         Label1.Text = "The Items collection contains: <br />";

         foreach(RepeaterItem item in Repeater1.Items)
         {        
            Label1.Text += item.ItemType + " - " +
                           ((DataBoundLiteralControl)item.Controls[0]).Text +
                           "<br />";
         }
      }    
 
      public class PositionData 
      {
        
         private string item;
         private string price;
 
         public PositionData(string item, string price) 
         {
            this.item = item;
            this.price = price;
         }
 
         public string Item 
         {
            get 
            {
               return item;
            }
         }
 
         public string Price 
         {
            get 
            {
               return price;
            }
         }
      }
 
   </script>
 
</head>
<body>
 
   <form id="form1" runat="server">

      <h3>Repeater Example</h3>
         
      <br />
         
      <asp:Repeater id="Repeater1" 
                    runat="server">
         <HeaderTemplate>
            <table border="1">
               <tr>
                  <td><b>Item</b></td>
                  <td><b>Price</b></td>
               </tr>
         </HeaderTemplate>
             
         <ItemTemplate>
            <tr>
               <td> <%# DataBinder.Eval(Container.DataItem, "Item") %> </td>
               <td> <%# DataBinder.Eval(Container.DataItem, "Price") %> </td>
            </tr>
         </ItemTemplate>
            
         <FooterTemplate>
            </table>
         </FooterTemplate>
             
      </asp:Repeater>
      <br />

      <asp:Button id="Button1"
           Text="Display Items in Repeater"
           OnClick="Button_Click"
           runat="server"/>

      <br /><br />
         
      <asp:Label id="Label1"                 
                 runat="server"/>
   </form>
</body>
</html>

<%@ Page Language="VB" AutoEventWireup="True" %>
<%@ Import Namespace="System.Data" %>
<!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("Item 1", "$6.00"))
            values.Add(New PositionData("Item 2", "$7.48"))
            values.Add(New PositionData("Item 3", "$9.96"))
            
            Repeater1.DataSource = values
            Repeater1.DataBind()
        End If
    End Sub
     
    Sub Button_Click(Sender As Object, e As EventArgs)
        Label1.Text = "The Items collection contains: <br />"
        
        Dim item As RepeaterItem
        For Each item In  Repeater1.Items
      Label1.Text &= item.ItemType.ToString() & " - " & _
          CType(item.Controls(0), DataBoundLiteralControl).Text & "<br />"
        Next item
    End Sub
 
    Public Class PositionData
        
        Private myItem As String
        Private myPrice As String        
        
        Public Sub New(newItem As String, newPrice As String)
            Me.myItem = newItem
            Me.myPrice = newPrice
        End Sub        
        
        Public ReadOnly Property Item() As String
            Get
                Return myItem
            End Get
        End Property        
        
        Public ReadOnly Property Price() As String
            Get
                Return myPrice
            End Get
        End Property
    End Class
 
   </script>
 
</head>
<body>
 
   <form id="form1" runat="server">

      <h3>Repeater Example</h3>
         
      <br />
         
      <asp:Repeater id="Repeater1" 
                    runat="server">
         <HeaderTemplate>
            <table border="1">
               <tr>
                  <td><b>Item</b></td>
                  <td><b>Price</b></td>
               </tr>
         </HeaderTemplate>
             
         <ItemTemplate>
            <tr>
               <td> <%# DataBinder.Eval(Container.DataItem, "Item") %> </td>
               <td> <%# DataBinder.Eval(Container.DataItem, "Price") %> </td>
            </tr>
         </ItemTemplate>
            
         <FooterTemplate>
            </table>
         </FooterTemplate>
             
      </asp:Repeater>
      <br />

      <asp:Button id="Button1"
           Text="Display Items in Repeater"
           OnClick="Button_Click"
           runat="server"/>

      <br /><br />
         
      <asp:Label id="Label1"                 
                 runat="server"/>
   </form>
</body>
</html>

注解

使用 ItemType 属性确定控件中 Repeater 项的类型。 下表列出了不同的项类型。

项类型 说明
标头 控件的 Repeater 标题部分。
脚注 控件的 Repeater 页脚部分。
Item 控件中的 Repeater 项。
交替项 控件中的 Repeater 交替项。
SelectedItem 控件中的 Repeater 选定项。
EditItem 为在控件中编辑而选择的 Repeater 项。
Separator 控件项 Repeater 之间的分隔符。
寻呼机 控件的页面 Repeater 选择部分。

适用于

另请参阅