做壹個登錄頁面，如果輸入正確的用戶名和密碼，則進入歡迎頁面，否則錯誤。請寫出主要事件的程序代碼

Default1.aspx窗體代碼：

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

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

</head>

<body>

<div>

用戶名：

<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>

<br />

密碼：

<asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>

<br />

<asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="密碼" Width="116px" /></div>

</form>

</body>

</html>

代碼窗體的代碼如下：

using System;

using System.Data;

using System.Configuration;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Web.UI.HtmlControls;

public partial class _Default : System.Web.UI.Page

{

protected void Page_Load(object sender, EventArgs e)

{

}

protected void Button1_Click(object sender, EventArgs e)

{

if (TextBox1.Text == "admin" && TextBox2.Text == "admin")

{ Response.Redirect("res/Default2.aspx"); }

else

{ Response.Write("登陸失敗"); }

}