Greetings: I am trying to pass a parameter from one page into another one. How do I do this? Is there a way when someone logs into the application, I do not want them to log in twice. I want the other page to know that this user is already logged in and give him or her OK to use the other page. This is just to prevent multiple log ins.

Ben bu meseleyi alabilirsiniz herhangi bir yardım appriciate.

Best Regards, David Ramezani