<%@ Page Title="" Language="C#" MasterPageFile="~/MyMaster.Master" AutoEventWireup="true" CodeBehind="UserRegistration.aspx.cs" Inherits="MyProject.UserRegistration" %>
<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" runat="server">
<div id="content">
<!-- Begin Slider -->
<div id="slider">
<div class="slider-frame"> </div>
<ul class="slider-items">
<li><img src="Styles/css/images/slide1.jpg" alt="Slide 1" /></li>
<li><img src="Styles/css/images/slide1.jpg" alt="Slide 1" /></li>
<li><img src="Styles/css/images/slide1.jpg" alt="Slide 1" /></li>
<li><img src="Styles/css/images/slide1.jpg" alt="Slide 1" /></li>
<li><img src="Styles/css/images/slide1.jpg" alt="Slide 1" /></li>
</ul>
<div class="cl"> </div>
<div class="slider-controls">
<ul></ul>
<div class="cl"> </div>
</div>
</div>
<form id="form1" runat="server">----removed-----------
<table align="center" border="1" cellpadding="1" cellspacing="1" class="Table"
style="width: 60%">
<tr align="center">
<td align="left" width="1024">
<fieldset>
<legend class="style5"><strong><em>Registration Page</em></strong></legend>
<table class="style2">
<tr>
<td class="style8">
<strong>First Name:</strong></td>
<td class="style4">
<asp:TextBox ID="txtFN" runat="server" Width="180px"></asp:TextBox>
</td>
<td>
<asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server"
ControlToValidate="txtFN" ErrorMessage="Please enter the first name..."
ForeColor="Red">*</asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td class="style8">
<strong>Last Name:</strong></td>
<td class="style4">
<asp:TextBox ID="txtLN" runat="server" Width="180px"></asp:TextBox>
</td>
<td>
<asp:RequiredFieldValidator ID="RequiredFieldValidator2" runat="server"
ControlToValidate="txtLN" ErrorMessage="Plese enter last name..."
ForeColor="Red">*</asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td class="style8">
<strong>User Name:</strong></td>
<td class="style4">
<asp:TextBox ID="txtUN" runat="server" Width="180px"></asp:TextBox>
</td>
<td>
<asp:RequiredFieldValidator ID="RequiredFieldValidator3" runat="server"
ControlToValidate="txtUN" ErrorMessage="Please enter the user name..."
ForeColor="Red">*</asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td class="style8">
<strong>Password:</strong></td>
<td class="style4">
<asp:TextBox ID="txtPass" runat="server" TextMode="Password" Width="180px"></asp:TextBox>
</td>
<td>
<asp:RequiredFieldValidator ID="RequiredFieldValidator4" runat="server"
ControlToValidate="txtPass" ErrorMessage="Please enter the password..."
ForeColor="Red">*</asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td class="style8">
<strong>Confirm Password:</strong></td>
<td class="style4">
<asp:TextBox ID="txtCP" runat="server" TextMode="Password" Width="180px"></asp:TextBox>
</td>
<td>
<asp:CompareValidator ID="CompareValidator1" runat="server"
ControlToCompare="txtCP" ControlToValidate="txtPass"
ErrorMessage="Please re-enter the confirm password..." ForeColor="Red">Please enter the correct Password</asp:CompareValidator>
</td>
</tr>
<tr>
<td class="style8">
<strong>Gender:</strong></td>
<td class="style4">
<asp:RadioButtonList ID="rdlGender" runat="server">
<asp:ListItem>Male</asp:ListItem>
<asp:ListItem>Female</asp:ListItem>
</asp:RadioButtonList>
</td>
<td>
<asp:RequiredFieldValidator ID="RequiredFieldValidator6" runat="server"
ControlToValidate="rdlGender" ErrorMessage="Please enter the gender..."
ForeColor="Red">*</asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td class="style8">
<strong>Address:</strong></td>
<td class="style4">
<asp:TextBox ID="txtAdd" runat="server" Width="180px"></asp:TextBox>
</td>
<td>
<asp:RequiredFieldValidator ID="RequiredFieldValidator7" runat="server"
ControlToValidate="txtAdd" ErrorMessage="Please enter the address..."
ForeColor="Red" SetFocusOnError="True">*</asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td class="style8">
<strong>Email ID:</strong></td>
<td class="style4">
<asp:TextBox ID="txtEmail" runat="server" Width="180px"></asp:TextBox>
</td>
<td>
<asp:RequiredFieldValidator ID="EmailRequiredFieldValidator8" runat="server"
ControlToValidate="txtEmail" ErrorMessage="Email address required"
ForeColor="Red">*</asp:RequiredFieldValidator>
<asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server"
ControlToValidate="txtEmail" Display="Dynamic"
ErrorMessage="Invalid email address" ForeColor="Red" SetFocusOnError="True"
ValidationExpression="\w+([-+.']\w+)*@gmail.com">Please enter the valid GMail account</asp:RegularExpressionValidator>
</td>
</tr>
<tr>
<td class="style7" colspan="3">
<asp:Button ID="btnSubmit" runat="server" onclick="btnSubmit_Click"
Text="Sign Up" />
</td>
</tr>
</table>
</fieldset></td>
</tr>
</table>
</form>---------removed-----------------
</div>
</asp:Content>
i already that i has a form tag in my master page i understabd that axp.net only allow a page can have only one server-side Form tag. After i removed the form tag in my page that link to master page it ocuurs the error Control 'ContentPlaceHolder1_txtFN' of type 'TextBox' must be placed inside a form tag with runat=server. Can everyone helps?