Web Forms :: Simple Delegate Example - Cleaner Code?

I need to pass a value from the selected button in user control to the containing page. I have it working fine but only by using a bunch of if statements that strike me as ugly. Can't figure out how to use a switch statement which, I think, would be a bit less cumbersome. I'd welcome on how to clean up this code (obviously I'm new to delegates).

Here's the code:

User Control:
<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="DelegateUserControl.ascx.cs"
Inherits="Foobar.UserControls.DelegateUserControl" %>
<asp:Button ID="Button1" runat="server" Text="Button 1" onclick="Button_Click" />
<asp:Button ID="Button2" runat="server" Text="Button 2" onclick="Button_Click" />
<asp:Button ID="Button3" runat="server" Text="Button 3" onclick="Button_Click" />

User Control code behind:

using System;
namespace Foobar.UserControls
{
public delegate void SendButtonValueToPage(int buttonValue);
public partial class DelegateUserControl : System.Web.UI.UserControl
{
public static event SendButtonValueToPage SendButtonIdToPage;

[Code]....