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ASP.NET内置对象之Application对象

2008-09-24 00:00 861 查看

新建一个网站，包括两个网页，代码如下：
1、Index.aspx代码：

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Index.aspx.cs" Inherits="Index" %> 
<!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 runat="server"> 
<title>无标题页</title> 
</head> 
<body> 
<form id="form1" runat="server"> 
<div> 
<table style="width: 300px; height: 100px"> 
<tr> 
<td style="width: 100px"> 
用户名：</td> 
<td style="width: 246px"> 
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox></td> 
</tr> 
<tr> 
<td style="width: 100px"> 
密    码：</td> 
<td style="width: 246px"> 
<asp:TextBox ID="TextBox2" runat="server" TextMode="Password"></asp:TextBox></td> 
</tr> 
<tr> 
<td style="text-align: center;" colspan="2"> 
<asp:Button ID="Button1" runat="server" Text="登录" OnClick="Button1_Click" /></td> 
</tr> 
</table> 
</div> 
</form> 
</body> 
</html>

Index.aspx.cs代码：

using System; 
using System.Data; 
using System.Configuration; 
using System.Collections; 
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 Index : System.Web.UI.Page 
{ 
string strInfo; 
protected void Page_Load(object sender, EventArgs e) 
{ 
} 
protected void Button1_Click(object sender, EventArgs e) 
{ 
Application["Info"] = TextBox1.Text; 
strInfo = Application["Info"].ToString(); 
if (TextBox1.Text == "admin" && TextBox2.Text == "admin") 
{ 
Session["name"] = TextBox1.Text; 
Response.Redirect("Default.aspx?Info=" + strInfo + "");//地址栏的传值 
} 
} 
} 
2、Default.aspx代码： 
<%@ 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"> 
<html xmlns="http://www.w3.org/1999/xhtml" > 
<head runat="server"> 
<title>无标题页</title> 
</head> 
<body> 
<form id="form1" runat="server"> 
<div> 
<table style="width: 500px; height: 323px"> 
<tr> 
<td colspan="2"> 
<asp:TextBox ID="TextBox2" runat="server" Height="314px" Width="497px" TextMode="MultiLine"></asp:TextBox></td> 
</tr> 
<tr> 
<td> 
<asp:Label ID="Label1" runat="server" Text="Label"></asp:Label> 
<asp:TextBox ID="TextBox1" runat="server" Width="390px"></asp:TextBox></td> 
<td> 
  
<asp:Button ID="Button2" runat="server" Text="发送" OnClick="Button2_Click" /></td> 
</tr> 
</table> 
</div> 
</form> 
</body> 
</html> 
Default.aspx.cs代码： 
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) 
{ 
Label1.Text = Session["name"].ToString(); 
/*对象的增加 
Application.Add("App1", "Value1"); 
Application.Add("App2", "Value2"); 
Application.Add("App3", "Value3"); 
Response.Write("Application对象的使用"); 
Response.Write("<br>"); 
for (int i = 0; i < Application.Count; i++) 
{ 
Response.Write("变量名：" + Application.GetKey(i)); 
Response.Write(",值：" + Application[i] + "<p>"); 
Response.Write("<br>"); 
}*/ 
} 
protected void Button2_Click(object sender, EventArgs e) 
{ 
Application["content"] = TextBox1.Text; 
TextBox2.Text = TextBox2.Text + "\n" + Label1.Text + "说：" + Application["content"].ToString(); 
} 
}

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