AJAX popup control extender - how do I put on a Cancel button? - asp.net

Question

Normally with an AJAX popup control extender, you simply select the item and your selection will populate the associated control.
However if I want to populate the control either directly or by a drop down list, then I would like to have a submit button and a cancel button.
I have found how to put in a Submit button. But how do I put in a cancel button?
<asp:TextBox runat="server" ID="txtWeek1MonAMTimeIn" Width="40px" />
<cc1:PopupControlExtender
ID="PopupControlExtenderWeek1TimeIn" runat="server"
PopupControlID="pnlWeek1MonAMTimeIn"
Position="Bottom"
TargetControlID="txtWeek1MonAMTimeIn"
>
</cc1:PopupControlExtender>
<!-- Panel for editing data -->
<asp:UpdatePanel runat="server" ID="UDPWeek1MonAMTimeIn">
<ContentTemplate>
<asp:Panel runat="server" ID="pnlWeek1MonAMTimeIn" CssClass="popupControl"
onprerender="pnlWeek1MonAMTimeIn_PreRender">
<div class="span-7" style="padding:10px;">
<div>
<div class="span-2">
Time In
</div>
<div class="span-5">
<lib:input runat="server" id="libWeek1MonAMTimeIn" DataType="Time" />
</div>
</div>
<div>
<div class="span-2">
Time Out
</div>
<div class="span-5">
<lib:input runat="server" id="libWeek1MonAMTimeOut" DataType="Time" />
</div>
</div>
<div>
<div class="span-2">
Not in
</div>
<div class="span-5">
<asp:DropDownList runat="server" ID="ddlLeaveWeek1MonAM" />
</div>
</div>
<div>
<div class="span-2">
<asp:Button runat="server" ID="btnCancelWeek1MonAMTimeIn" UseSubmitBehavior="false" Text="Cancel" onclick="btnCancelWeek1MonAMTimeIn_Click" />
</div>
<div class="span-5">
<asp:Button runat="server" ID="btnSubmitWeek1MonAMTimeIn" Text="Submit"
UseSubmitBehavior="false" onclick="btnSubmitWeek1MonAMTimeIn_Click" /></div>
</div>
</div>
</asp:Panel>
</ContentTemplate>
</asp:UpdatePanel>
protected void btnSubmitWeek1MonAMTimeIn_Click(object sender, EventArgs e)
{
PopupControlExtender.GetProxyForCurrentPopup(this.Page).Commit(string.Empty);
}

Answer 1

use ModalPopupExtender,
it has CancelControlId as property
http://www.asp.net/AJAX/AjaxControlToolkit/Samples/ModalPopup/ModalPopup.aspx