Introduction
The List controls enable us to display simple lists of options. For example, we
can use the RadioButtonList control to display a group of radio buttons, or the
BulletedList control to display a list of links. In this series of article we
will also discuss on DropDownList, RadioButtonList, ListBox, CheckBoxList, and
BulletedList controls too. We will also discuss how to bind them to a data
source such as a database tables.
Declaring List Items
The List controls render a list of options. Each option is represented by an
instance of the ListItem class. For example, we can use the page in given below
to render a set of options for selecting our subject and degree.
![list1.gif]()
<%@ Page Language="VB" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD
XHTML 1.0 Transitional//EN""http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<title>Favorite
Movie</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Label
id="lblSubjects"
Text="Chose
one of the Subject:"
AssociatedControlID="rblSubjects"
Runat="server"
Font-Bold="true"/>
<asp:RadioButtonList
id="rblSubjects"
Runat="server"
Width="285px">
<asp:ListItem
Text="ASP.Net"
Value="subject1"
Selected="True"/>
<asp:ListItem
Text="VB.Net"
Value="subject2" />
<asp:ListItem
Text="Silverlight"
Value="subject3" />
<asp:ListItem
text="Expression
Blend"
Value="subject4" />
</asp:RadioButtonList>
<hr />
<br />
<asp:Label
id="Label2"
Text="Chose
one of the Degree:"
AssociatedControlID="rblDegree"
Runat="server"
Font-Bold="true"/>
<br />
<asp:RadioButtonList
id="rblDegree"
Runat="server"
Width="285px">
<asp:ListItem
Text="BCA"
Value="degree1" />
<asp:ListItem
Text="MCA"
Value="degree2" />
<asp:ListItem
Text="B.TECH.(IT)"
Value="degree3" />
<asp:ListItem
text="M.TECH.(IT)"
Value="degree4" />
</asp:RadioButtonList>
</div>
</form>
</body>
</html>
In above coding we have used a RadioButtonList control twice. This control
contains four ListItem controls separately in twice of RadioButtonList.
The ListItem control supports the following five properties:
-
Attributes: it
enables us to add HTML attributes to a list item.
-
Enabled: it
enables us to disable a list item.
-
Selected: it
enables us to mark a list item as selected.
-
Text: it
enables us to specify the text displayed by the List Item.
-
Value: it
enables us to specify a hidden value associated with the List Item.
Note: Continue in Next Part.
HAVE A GREAT CODING!