RadioButtonList Server Control

The RadioButtonList control is similar to ChckBoxlist Control there you can select more than one item and here we user can select only one item from the list.

A radioButtonList control is written to the page in the following construction:

Figure Goes here…..

<asp:RadioButtonList ID="rdlNumber" AutoPostBack="true" runat="server"
onselectedindexchanged="rdlNumber_SelectedIndexChanged">
<asp:ListItem Text="One" />
<asp:ListItem Text="Two" />
<asp:ListItem Text="Three" />
<asp:ListItem Text="Four" />
</asp:RadioButtonList>

When we are playing on event handler for RadioButtonList control we need onselectedindexchanged event.

It looks like this

Figure goes here…..

.aspx

<form id="Form1" runat="server">
<div>
<asp:Label ID="lblHeader" ForeColor="Orange" Text="How many Children?" runat="server" />
<asp:RadioButtonList ID="rdlNumber" AutoPostBack="true" runat="server"
onselectedindexchanged="rdlNumber_SelectedIndexChanged">
<asp:ListItem Text="One" />
<asp:ListItem Text="Two" />
<asp:ListItem Text="Three" />
<asp:ListItem Text="Four" />
</asp:RadioButtonList>
<br />
<asp:Label ID="lblMessage" ForeColor="BlueViolet" runat="server" />
</div>
</form>


.cs

protected void rdlNumber_SelectedIndexChanged(object sender, EventArgs e)
{
lblMessage.Text = "You have selected " + rdlNumber.SelectedItem.ToString();
}

Have fun J