Fun C# ASP.NET Page for Lotto Numbers

To lighten the mood in my office, I came up with fun C# ASP.NET page to randomly display lotto numbers. It's configured for the Cali lotto format but you can easily modify it for whatever state your in. Enjoy.

using System;
using System.Web;
using System.Text;

public partial class numbers : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{

}

protected void GetLottoNumbers(object sender, EventArgs e)
{
ArrayList arlNum = new ArrayList();
Random RandomClass = new Random();

while (arlNum.Count < 5)
{
int g = RandomClass.Next(1, 56);
if (!arlNum.Contains(g))
{
arlNum.Add(g);
}
}

arlNum.Sort();

pnlNum.Visible = true;
lblN1.Text = arlNum[0].ToString();
lblN2.Text = arlNum[1].ToString();
lblN3.Text = arlNum[2].ToString();
lblN4.Text = arlNum[3].ToString();
lblN5.Text = arlNum[4].ToString();
lblN6.Text = RandomClass.Next(1, 46).ToString();
btnNumbers.Text = "Get Another Set";
}


}


-----------------------Portion of numbers.aspx------------------------------

<h2>IT Retirement Numbers</h2>
<hr />
<p><strong>Would you like to see some IT retirement numbers?</strong></p>

<asp:Button ID="btnNumbers" runat="server" Text="Get Numbers" OnClick="GetLottoNumbers" />

<asp:Panel ID="pnlNum" runat="server" Visible="false">

<br />
Here you go...

<asp:Label ID="lblN1" runat="server" Width="20" />

<asp:Label ID="lblN2" runat="server" Width="20" />

<asp:Label ID="lblN3" runat="server" Width="20" />

<asp:Label ID="lblN4" runat="server" Width="20" />

<asp:Label ID="lblN5" runat="server" Width="20" />

and mega number
<asp:Label ID="lblN6" runat="server" Width="20" />
</asp:Panel>