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Editorial Team
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Asked: 2026-06-13T20:27:14+00:00

I’m programming a Chat. Basically, I have a window ( TextBox ) where I

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I’m programming a Chat. Basically, I have a window (TextBox) where I want to display all users that are in the conversation at the moment but I do not wish to use a database.

So, I would need to keep my table of active users somewhere persistent something that does not get erased on refresh.

I looked in to Sessions. However, they expire and I can’t keep the array of my active users in there. I also looked in Application Object and it seems this could solve my dilemma. However:

Say I call 

String[] users = new users String[1000];  
Application['users'] = users;

In my Page_Load() method, sure I can store the new user in to that table but then each page load will override the table and I will always show only one user but I guess implementing something along lines is isset() could solve that.

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  1. Editorial Team

    So I would need to keep my table of active users somewhere persistant
    something that does not get erased on refresh.

    A database is the solution for that.

    The Application[] is actually a static variable, so its delete it when pool recycle, and also if you have more than one pool, than you have more than one common Application variables.

    Read about application state: Using static variables instead of Application state in ASP.NET

    See some other examples with asp.net chat:

    http://www.codeproject.com/Articles/33817/Build-a-Web-based-Chat-using-ASP-NET-Ajax

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