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ListItem.Selected Property

Gets or sets a value indicating whether the item is selected.

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

public bool Selected { get; set; }
/** @property */
public boolean get_Selected ()

/** @property */
public void set_Selected (boolean value)

public function get Selected () : boolean

public function set Selected (value : boolean)

Property Value

true if the item is selected; otherwise, false. The default is false.

Use the Selected property to determine whether the ListItem is currently selected in the list control that contains it. This property is commonly used, when iterating through a collection of ListItem objects in a list control, to determine whether an item is selected.

TopicLocation
How to: Set the Selection in List Web Server ControlsBuilding ASP .NET Web Applications
How to: Set the Selection in List Web Server ControlsBuilding ASP .NET Web Applications
How to: Set the Selection in List Web Server Controls (Visual Studio)Building ASP .NET Web Applications in Visual Studio

The following example demonstrates how to use the Selected property when iterating through the Items collection of a CheckBoxList control to determine which check boxes are selected.

NoteNote

The following code sample uses the single-file code model and may not work correctly if copied directly into a code-behind file. This code sample must be copied into an empty text file that has an .aspx extension. For more information on the Web Forms code model, see ASP.NET Web Page Code Model.

<%@ Page Language="C#" AutoEventWireup="True" %>
<html>
 <head>
 
 </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 action="checkboxlist.aspx" 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>
    

Windows 98, Windows 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

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

.NET Framework

Supported in: 2.0, 1.1, 1.0

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