<%@ Page Language="C#" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" > <head id="Head1" runat="server"> <title>Simple Login Page</title> </head> <body> <form id="form1" runat="server"> Username: <asp:TextBox id="usernameTextBox" runat="server" /> <asp:RequiredFieldValidator id="usernameReq" runat="server" ControlToValidate="usernameTextBox" ErrorMessage="Username is required!" SetFocusOnError="True" /> Password:<br /> <asp:TextBox id="passwordTextBox" runat="server" TextMode="Password" /> <asp:RequiredFieldValidator id="passwordReq" runat="server" ControlToValidate="passwordTextBox" ErrorMessage="Password is required!" SetFocusOnError="True" /> <asp:Button id="submitButton" runat="server" Text="Submit" /> </form> </body> </html>