In this topic you will add content to a Panel control.

1. In your Web application, add a standard Panel control to the main content of  your page.
2. Click the Panel smart tag and select Add Extender from the Tasks menu.
3. In the Extender Wizard, select C1ListExtender and click OK. A C1ListExtender control is added to the page and the TargetControlID is set to Panel1.
4. Select View | Properties Window in the Visual Studio menu.
5. Click the drop-down list at the top of the Properties window and select TextBox1_C1InputDateExtender.
6. Click the ellipsis button next to the C1ListExtender.ListItems property and add six members (Members 0-5). Set the Label and Value properties for each member as follows:

The markup should look similar to the following:

<cc1:C1ListExtender ID="Panel1_C1ListExtender" runat="server"

        TargetControlID="Panel1">

<ListItems>

            <cc1:ListItem Label="Label1" Value="Value1" />

            <cc1:ListItem Label="Label2" Value="Value2" />

            <cc1:ListItem Label="Label3" Value="Value3" />

            <cc1:ListItem Label="Label4" Value="Value4" />

            <cc1:ListItem Label="Label5" Value="Value5" />

            <cc1:ListItem Label="Label6" Value="Value6" />

      </ListItems>

    </cc1:C1ListExtender>

Now you can begin setting properties for the C1ListExtender to format the list.