ASP.NET

Re: Implementing logout functionality for web application

7-Oct-09 20:28

Could you please elaborate on how can i check for session expiration.
I used to check for session.IsNewSession on each page.
But even that couldn't help,
hence would like to know how can i implement session expiration in every page.

Aspiring Techie,
Vishnu Nath

Christian Graus7-Oct-09 20:32

Re: Implementing logout functionality for web application

7-Oct-09 20:32

Your login should be stored in the session. You don't need to write some code to expire the session in every page, just set the value you check to null, when someone logs out.

Christian Graus

Driven to the arms of OSX by Vista.

Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.

janani137-Oct-09 20:43

janani13

7-Oct-09 20:43

Check the session variable is not null in page load of each pages.If null redirect to login page.It will avoid you to perform operations.

Re: Implementing logout functionality for web application

Abhijit Jana7-Oct-09 20:59

Abhijit Jana

7-Oct-09 20:59

Vishnu Nath wrote:
Could you please elaborate on how can i check for session expiration.
I used to check for session.IsNewSession on each page.

if(Session["UserID"] != null)
  {
   //Do Operation
  }
  else
  {
   Response.Redirect("Login.aspx");
  }

Abhijit Jana | Codeproject MVP
Web Site : abhijitjana.net
Visit My Latest Article : Beginner's Guide : Exploring IIS 6.0 With ASP.NET

Re: Implementing logout functionality for web application

Vishnu Nath7-Oct-09 22:39

Re: Implementing logout functionality for web application

7-Oct-09 22:39

Abhijit Jana wrote:
if(Session["UserID"] != null)
{
//Do Operation
}
else
{
Response.Redirect("Login.aspx");
}

This is only valid if a session for that variable was created and you are checking for its value.
But if someone requests this page directly, it will throw an error stating
Object refrence not set.

Aspiring Techie,
Vishnu Nath

Abhijit Jana7-Oct-09 22:50

Abhijit Jana

7-Oct-09 22:50

Please read this :
Exploring Session in ASP.Net[^]

Abhijit Jana | Codeproject MVP
Web Site : abhijitjana.net
Visit My Latest Article : Beginner's Guide : Exploring IIS 6.0 With ASP.NET

Re: Implementing logout functionality for web application

Christian Graus7-Oct-09 23:11

Re: Implementing logout functionality for web application

7-Oct-09 23:11

Buy a really basic book and read it. The code is CHECKING if the value is null.

Christian Graus

Driven to the arms of OSX by Vista.

Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.

Vishnu Nath7-Oct-09 23:20

Re: Implementing logout functionality for web application

7-Oct-09 23:20

Thanx for your suggestion and advice,
will surely do the same.
I have implemented my own logic on it. Smile | :)

Aspiring Techie,
Vishnu Nath

Anuj Banka8-Oct-09 2:14

Anuj Banka

8-Oct-09 2:14

What logic u applied.Beacuse back button take page from cache.so it take old session value.

so to avoid this wat u did?

I also want to know

Re: Implementing logout functionality for web application

Vishnu Nath8-Oct-09 7:20

Re: Implementing logout functionality for web application

8-Oct-09 7:20

U r right.
And to stop a user accessing a page even after logout, i simply disabled the browsers back button after logout through javascript.

Aspiring Techie,
Vishnu Nath

Anuj Banka8-Oct-09 18:08

Anuj Banka

8-Oct-09 18:08

U means u disable ur back button in ur whole project.

Re: Implementing logout functionality for web application

Abhijit Jana8-Oct-09 2:28

Abhijit Jana

8-Oct-09 2:28

What was the Wrong with CG's Answer ?

Abhijit Jana | Codeproject MVP
Web Site : abhijitjana.net
Visit My Latest Article : Beginner's Guide : Exploring IIS 6.0 With ASP.NET

Re: Implementing logout functionality for web application

Vishnu Nath8-Oct-09 7:17

Re: Implementing logout functionality for web application

8-Oct-09 7:17

No he wasn't wrong.
I had a bit concern, if a user tries to access the page directly, without following the normal routine, then the session variable which i would be checking on my page, would never have existed.
Hence i put out a check over there nd followed with the rest of the suggestions provided by all of u.

Aspiring Techie,
Vishnu Nath

Anuj Banka8-Oct-09 18:10

Anuj Banka

8-Oct-09 18:10

cgs ans not wrong but if we hav secure page in our site. user can view secure information

Re: Implementing logout functionality for web application [modified]

Yonathan11117-Oct-09 21:43

Yonathan1111

7-Oct-09 21:43

Make all the session variables null before logout.

modified on Thursday, October 8, 2009 4:04 AM

Re: Implementing logout functionality for web application

Vishnu Nath8-Oct-09 7:22

8-Oct-09 7:22

Thanks for everyone's active participation in helping me. Smile | :)

Aspiring Techie,
Vishnu Nath

How To Edit dll

ksss_maheshece7-Oct-09 17:47

7-Oct-09 17:47

Hi friends,
I've a vb source code for a dll. now i want change something on the Dll.
Though i edit and registerthat component it's not wokring fine.How can fix the pblm.

Cheers,
Mahesh

N a v a n e e t h7-Oct-09 17:59

N a v a n e e t h

7-Oct-09 17:59

You need source code for that to make changes.

ksss_maheshece wrote:
Though i edit and registerthat component

Is that a COM dll? You don't need to register .NET DLL's.

Navaneeth

How to use google | Ask smart questions

ksss_maheshece7-Oct-09 20:02

7-Oct-09 20:02

i have the source code.
i'm using that component in my applicatiASP on.
here i register my component in component liberary.Before it's working fine .now i want to change the dll.
Shalln't need to register once again?
can i know why? and how?

Thanks,
Mahesh

Christian Graus7-Oct-09 20:33

7-Oct-09 20:33

You seem to be pretty damn clueless. If you change a COM object, make sure you register the changed version. Simple really.

Christian Graus

Driven to the arms of OSX by Vista.

Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.

ksss_maheshece7-Oct-09 21:47

7-Oct-09 21:47

I've Edit the Dll source file and registered as well.But it doesn't reflect in the application.What would be the problem?
for Examble,
I have the connection string in my dll.I'd change the server and Database name.but it didn't reflect.Still remains in the same connection.
Thanks,
Mahesh

N a v a n e e t h7-Oct-09 22:20

N a v a n e e t h

7-Oct-09 22:20

Have you unregistered the previous one before you register new one? COM is mess and you will run into DLL hell issues.

Navaneeth

How to use google | Ask smart questions

Christian Graus7-Oct-09 22:24

7-Oct-09 22:24

Add a message box or other marker to prove that your new code is what is being run.

Christian Graus

Driven to the arms of OSX by Vista.

Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.

ksss_maheshece7-Oct-09 23:07

7-Oct-09 23:07

I tried my level best but it doesn't reflect that changes.
Thanks,
Mahesh