Microsoft c# ASPX code example for login webpage.
<%@ Page Title="SANS Secure Code Exercise" Debug="true" Language="C#" AutoEventWireup="true" CodeFile="login.aspx.cs" Inherits="sans_login" MasterPageFile="~/sans.master" %><%@ MasterType virtualPath="~/sans.master"%>
<script runat="server">
void OnLoggedIn(object sender, EventArgs e)
{
ProcessLogin((System.Web.UI.WebControls.Login) sender);
}
</script>
<asp:Content ID="Content1" ContentPlaceHolderID="MainContent" Runat="Server">
<asp:Login ID="Login1" OnLoggedIn="OnLoggedIn" runat="server">
<LayoutTemplate>
<table border="0" cellpadding="1" cellspacing="0"
style="border-collapse:collapse;">
<tr>
<td>
<table border="0" cellpadding="0">
<tr>
<td align="center" colspan="2">
Log In</td>
</tr>
<tr>
<td align="right">
<asp:Label ID="UserNameLabel" runat="server" AssociatedControlID="UserName">User Name:</asp:Label>
</td>
<td>
<asp:TextBox ID="UserName" runat="server"></asp:TextBox>
<asp:RequiredFieldValidator ID="UserNameRequired" runat="server"
ControlToValidate="UserName" ErrorMessage="User Name is required."
ToolTip="User Name is required." ValidationGroup="Login1">*</asp:RequiredFieldValidator>
<asp:RegularExpressionValidator ID="RegularExpressionValidator3" runat="server"
ControlToValidate="UserName" ErrorMessage="Bad Chars"
ValidationExpression="^[^%'\<\>"]*$"></asp:RegularExpressionValidator>
</td>
</tr>
<tr>
<td align="right">
<asp:Label ID="PasswordLabel" runat="server" AssociatedControlID="Password">Password:</asp:Label>
</td>
<td>
<asp:TextBox ID="Password" runat="server" TextMode="Password"></asp:TextBox>
<asp:RequiredFieldValidator ID="PasswordRequired" runat="server"
ControlToValidate="Password" ErrorMessage="Password is required."
ToolTip="Password is required." ValidationGroup="Login1">*</asp:RequiredFieldValidator>
<asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server"
ControlToValidate="Password" ErrorMessage="Bad Chars"
ValidationExpression="^[^%'\<\>"]*$"></asp:RegularExpressionValidator>
</td>
</tr>
<tr>
<td colspan="2">
<asp:CheckBox ID="RememberMe" runat="server" Text="Remember me next time." />
</td>
</tr>
<tr>
<td align="center" colspan="2" style="color:Red;">
<asp:Literal ID="FailureText" runat="server" EnableViewState="False"></asp:Literal>
</td>
</tr>
<tr>
<td align="right" colspan="2">
<asp:Button ID="LoginButton" runat="server" CommandName="Login" Text="Log In"
ValidationGroup="Login1" />
</td>
</tr>
</table>
</td>
</tr>
</table>
</LayoutTemplate>
</asp:Login>
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="LoginContent" Runat="Server">
</asp:Content>