asp.net 用继承方法实现页面判断session

using System; 
using System.Web; 
using System.Web.UI; 
using System.Web.SessionState; 
public class mana_session : Page 
{ 
public mana_session() 
{ 
} 
protected override void OnInit(EventArgs e) 
{ 
if (Session["uid"]== null || Session["uid"].ToString()=="") 
{ 
Response.Redirect("login.htm"); 
} 
} 
} 
 
 代码如下:

using System; 
using System.Web; 
using System.Web.UI; 
using System.Web.SessionState; 
public class mana_session : Page 
{ 
public mana_session() 
{ 
} 
protected override void OnInit(EventArgs e) 
{ 
if (Session["uid"]== null || Session["uid"].ToString()=="") 
{ 
Response.Redirect("login.htm"); 
} 
} 
} 
 
在需要判断session的页面的cs文件中，将此文件继承于mana_session这个基类 
例如 
Csharp 代码 
public partial class Index : mana_session