Redirect to Home page if user already logged in, in same browser asp .net c#

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I want to make application that if user in logged in the web site in one tab of browser and if he open application in second tab than he should not redirect to login page but he should redirect to Home page. just like Facebook or yahoomail in asp.net C#

please help

Posted 9-Sep-11 23:27pm

pchindhade

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Tarika Joshi 10-Sep-11 6:03am

i need to give a different session id to the unique user every time he opens the same website in different window

2 solutions

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Arun Kumar K S · Answer 1 · 2011-09-09T23:38:00

Solution 1

Set your home page is the default page in site URL and write code for checking authentication in page load, This will redirect your Home page to login page if the user not logged in

One way of doing this is

Step 1) Assign one session variable with login user on the log in time in login page

Step 2) check that above session variable on each pages page load (Check session variable is null or not)

Step 3) Assign null to session variable on log out

Posted 9-Sep-11 23:38pm

Arun Kumar K S

Updated 9-Sep-11 23:48pm

v2

Comments

pchindhade 10-Sep-11 5:44am

I have done that but in authenticating it is showing error of object reference not set.

I have written code like if cookie is null than redirect to login.aspx and if not null than to home page. but on login.aspx page load it is showing this error.
thank you for reply
please help

Arun Kumar K S 10-Sep-11 5:50am

Use session variable instead of cookies

srinivas vadepally · Answer 2 · 2011-09-10T01:15:00

Solution 2

Hi pchindhade,

If you use the session properly,you don't get such problems.
For details click below link
Click me
any more queries just place a comment.
Have a good time!!!

Posted 10-Sep-11 1:15am

srinivas vadepally