<%@ Page Language="C#" AutoEventWireup="true"
   CodeFile="Default.aspx.cs" Inherits="_Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
   <title>Demo kontrolki TextBox</title>
</head>
<body>
   <form id="form1" runat="server">
   <div>
      <h1>TextBox Demo</h1>
      <asp:TextBox ID="txtInput" runat="server"
         AutoPostBack="true"
         OnTextChanged="txtInput_TextChanged" >
      Wprowad dowolny tekst
      </asp:TextBox>
      <br />
      <asp:TextBox ID="txtEcho" runat="server"
         BackColor="LightGray"
         ReadOnly="True">
      </asp:TextBox>
   </div>
   </form>
</body>
</html>
