Basepage class + session General user logon permission Control

to determine whether a user is logged on, the common method is to use session control.
but many people prefer

 
Protected void page_load (Object sender, eventargs e ){}
 

To writeCodeOr even write in some buttons to determine whether a session exists ~~
Of course, this can achieve the effect. The problem is: if there are 1000 pages ~~ You need Ctrl + c... CTRL + V many times ~~~
My idea is to write a basepage class that inherits system. Web. UI. Page.

 

Code

  Public     Class  Basepage: system. Web. UI. Page
{
  //  The pageunload event does not mean that the browser is closed, but that the page is closed. Therefore, the following events are still executed during refresh.  
    Protected     Void  Page_unload (  Object Sender, eventargs E)
{

}

  Protected     Override     Void  Onpreinit (eventargs E)
{
  Base  . Onpreinit (E );
  If  (  !  Sessiondata. islogin ())
{  //  Go to the logon page: for example: 
  Response. Redirect (  String  . Format (  "  ~ /Relogin. aspx? Page = {0}  "  , Request. Path ));
}} 

 

Why do I need to include the page parameter here to return to the page before logon after successful logon


I also contributed a sessiondata class:

Code

  Using  System;
 Using  System. Collections. Generic;
  Using  System. LINQ;
  Using  System. Web;
  Using  Expressplatform. Common;
  Namespace  Expressplatform. Web. appcode
{
  Public     Class  Sessionkey
{
  Public    Const     String  Userinfo  =     "  User  "  ;
}
  ///     <Summary>  
  ///  Manage all session data in this class
 ///     </Summary>  
    Public     Class  Sessiondata
{
  ///     <Summary>  
  ///  Obtain user information in a session
  ///    </Summary>  
  ///     <Returns> </returns>  
    Public     Static  Mdlsessioncustomerinfo getuserinfo ()
{
Mdlsessioncustomerinfo userinfo  =  Sessionmanager  <  Mdlsessioncustomerinfo >  . Getsessionobject (sessionkey. userinfo );
  If  (Userinfo  =     Null  )
{
Userinfo  =     New  Mdlsessioncustomerinfo ();
  //  Store content to applicationsProgram  
 Sessionmanager  <  Mdlsessioncustomerinfo  >  . Setsessionobject (sessionkey. userinfo, userinfo );
}
  Return  Userinfo;
}
  ///     <Summary>  
  ///  Reset the user information in the session
  ///    </Summary>  
  ///     <Param name = "userinfo"> </param>  
    Public     Static     Void  Setuserinfo (mdlsessioncustomerinfo userinfo)
{
Sessionmanager  <  Mdlsessioncustomerinfo >  . Setsessionobject (sessionkey. userinfo, userinfo );
}
  ///     <Summary>  
  ///  Clear user information in the session
  ///     </Summary>  
    Public     Static    Void  Clearuserinfo ()
{
Sessionmanager  <  Mdlsessioncustomerinfo  >  . Setsessionobject (sessionkey. userinfo,  Null  );
}
  ///     <Summary>  
  ///  Login?
 ///     </Summary>  
  ///     <Returns> </returns>  
    Public     Static     Bool  Islogin ()
{
  Bool  RET =     False  ;
Mdlsessioncustomerinfo userinfo  =  Sessionmanager  <  Mdlsessioncustomerinfo  >  . Getsessionobject (sessionkey. userinfo );
  If  (Userinfo  ! =     Null )
RET  =     True  ;
  Return  RET;
}
}
} 

 

 

This article is original to me. It's too long for everyone to continue reading it here.

Http://asp.netfaq.cn/Coolite_ExtJs/thread-224-1-1.html

 
  Public ClassBasepage: system. Web. UI. Page