ListControl.Items Property

Gets the collection of items in the list control.

Namespace:  System.Web.UI.WebControls
Assembly:  System.Web (in System.Web.dll)

[PersistenceModeAttribute(PersistenceMode.InnerDefaultProperty)]
public virtual ListItemCollection Items { get; }

Property Value

Type: System.Web.UI.WebControls.ListItemCollection
A ListItemCollection that represents the items within the list. The default is an empty list.

Use this property to get the properties of items in the list control. This property can be used to determine the selected items in the list control.

TopicLocation
How to: Set Web Server Control Properties in CollectionsBuilding ASP .NET Web Applications
How to: Set Web Server Control Properties in CollectionsBuilding ASP .NET Web Applications

The following example demonstrates how to use the Items property to determine the selected items in a CheckBoxList control.

<%@ 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 runat="server">
    <title>ASP.NET Example</title>
</head>
 <body>
    <script language="c#" runat="server">
       void Check_Clicked(Object sender, EventArgs e) {
          Message.Text="Selected Item(s):" + "<br />" + "<br />";
          for (int i=0; i<checkboxlist1.Items.Count; i++) {
             if (checkboxlist1.Items[i].Selected)
                Message.Text=Message.Text + checkboxlist1.Items[i].Text + "<br />";
          }
       }
    </script>

    <form id="form1" method="post" runat="server">

       <asp:CheckBoxList id="checkboxlist1" runat="server"
            AutoPostBack="True"
            CellPadding="5"
            CellSpacing="5"
            RepeatColumns="2"
            RepeatDirection="Vertical"
            RepeatLayout="Flow"
            TextAlign="Right"
            OnSelectedIndexChanged="Check_Clicked">

          <asp:ListItem>Item 1</asp:ListItem>
          <asp:ListItem>Item 2</asp:ListItem>
          <asp:ListItem>Item 3</asp:ListItem>
          <asp:ListItem>Item 4</asp:ListItem>
          <asp:ListItem>Item 5</asp:ListItem>
          <asp:ListItem>Item 6</asp:ListItem>

       </asp:CheckBoxList>

       <br /><br />
       <asp:label id="Message" runat="server"/>

    </form>

 </body>
 </html>
    

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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