e-mailing form data

[enrmpaga]

i'm using asp.c# to validate form and e-mail the results to my inbox but keep getting this error message:
Compiler Error Message: CS0117: 'System.Web.UI.HtmlControls.HtmlForm' does not contain a definition for 'Form1'

need some assistance, my aspx & C# code:

[HTML]
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="join.aspx.cs" Inherits="join" %>

<form id="Form1" runat="server">
<label>Username:</label>
<asp:TextBox runat="server" ID="txtUsername" MaxLength="30"></asp:TextBox>
<asp:RequiredFieldValidator ID="rfvUsername" ControlToValidate="txtUsername" ErrorMessage="*Required"
runat="server"></asp:RequiredFieldValidator>
<div class="clear"></div>

<label>Password:</label>
<asp:TextBox runat="server" ID="txtPassword" MaxLength="30" TextMode="Password"></asp:TextBox>
<asp:RequiredFieldValidator id="rfvPassword" ControlToValidate="txtPassword" Display="Dynamic" ErrorMessage="*Required" runat="server">
</asp:RequiredFieldValidator>
<div class="clear"></div>
<label>Confirm Password:</label>
<asp:TextBox ID="txtConPass" MaxLength="30" TextMode="Password" runat="server"/>
<asp:RequiredFieldValidator id="rfvConPass" ControlToValidate="txtConPass" Display="Dynamic" ErrorMessage="*Required" runat="server">
</asp:RequiredFieldValidator>
<asp:CompareValidator id="PasswordCompareValidator" ControlToValidate="txtPassword" ControlToCompare="txtConPass" ErrorMessage="Passwords you entered did not match, please re-enter" Type="String" Operator="Equal" runat="server" />
<div class="clear"></div>

<label>Alien Race:</label>
<asp:TextBox runat="server" ID="txtAlienRace" MaxLength="40"></asp:TextBox>
<asp:RequiredFieldValidator ID="rfvAlienRace" ControlToValidate="txtAlienRace" ErrorMessage="*Required" runat="server"></asp:RequiredFieldValidator>
<div class="clear"></div>

<label>Galaxy:</label>
<asp:TextBox runat="server" ID="txtGalaxy" MaxLength="40"></asp:TextBox>
<asp:RequiredFieldValidator ID="rfvGalaxy" ControlToValidate="txtGalaxy" ErrorMessage="*Required" runat="server"></asp:RequiredFieldValidator>
<div class="clear"></div>

<label>Solar System:</label>
<asp:TextBox runat="server" ID="txtSolar" MaxLength="40"></asp:TextBox>
<asp:RequiredFieldValidator ID="rfvSolar" ControlToValidate="txtSolar" ErrorMessage="*Required" runat="server"></asp:RequiredFieldValidator>
<div class="clear"></div>

<label>Planet:</label>
<asp:TextBox runat="server" ID="txtPlanet" MaxLength="40"></asp:TextBox>
<asp:RequiredFieldValidator ID="rfvPlanet" ControlToValidate="txtPlanet" ErrorMessage="*Required" runat="server"></asp:RequiredFieldValidator>
<div class="clear"></div>

<label>Email Address:</label>
<asp:TextBox runat="server" ID="txtEmail" MaxLength="50"></asp:TextBox>
<asp:RequiredFieldValidator ID="rfvEmail" ControlToValidate="txtEmail" ErrorMessage="*Required"
runat="server"></asp:RequiredFieldValidator>
<asp:RegularExpressionValidator ID="rgxEmail" runat="server" ControlToValidate="txtEmail"
ValidationExpression="^\S+@\S+\.\S+$" ErrorMessage="*Invalid email address">
</asp:RegularExpressionValidator>
<div class="clear"></div>
<label>Confirm E-mail:</label>
<asp:TextBox ID="txtEmailCon" MaxLength="50" runat="server"/>
<asp:RequiredFieldValidator id="rfvEmailCon" ControlToValidate="txtEmailCon" Display="Dynamic" ErrorMessage="*Required" runat="server">
</asp:RequiredFieldValidator>
<asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server" ControlToValidate="txtEmailCon"
ValidationExpression="^\S+@\S+\.\S+$" ErrorMessage="*Invalid email address">
</asp:RegularExpressionValidator>
<asp:CompareValidator id="CompareValidator2" ControlToValidate="txtEmail" ControlToCompare="txtEmailCon" ErrorMessage="Email you entered did not match, please re-enter" Type="String" Operator="Equal" runat="server" />
<div class="clear"></div>

<asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Submit Application" CssClass="submitbutton"/>&nbsp;
</form>[/HTML]

lusing System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.Mail;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
 
 
public partial class join : System.Web.UI.Page
{
 
    private void Button1_Click(object sender, System.EventArgs e)
    {
 
        MailMessage mail = new MailMessage();
 
        mail.To = "[e-mail]";
 
        mail.From = txtUsername.Text;
 
        mail.Subject = "Pagan Alliance Applicant";
 
        mail.Body = Form.Form1.Text;
 
        SmtpMail.SmtpServer = "localhost";
 
        SmtpMail.Send(mail);
 
    }
}