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Editorial Team
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Asked: 2026-05-21T23:22:41+00:00

I am trying to write a web service in ASP.NET which enables an outside

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I am trying to write a web service in ASP.NET which enables an outside application to access Session Variables such as the users that is currently logged in.

I thought that a correct way to do so would be to pass a cookie with a SessionID to the web service (or the SessionID itself), and have the web service return parameters of the Session object.

However, after a prolonged search I could not find a way to access Session variables with just a SessionID. Is this true? If so, is there an alternative way for me to write a service that will access session variables?

Thank you,

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1 Answer

  1. Editorial Team

    Off-hand, if you’re using SQL session storage you could just query the session database by session id…

    select
 s.[SessionItemShort]
,s.[SessionItemLong]
from [ASPStateTempSessions] as s
where s.[SessionId] = @sessionId

    iirc, SessionItemShort is a varbinary while SessionItemLong is an image… if the session item is larger than a varbinary(7000) it’ll get stored in SessionItemLong instead.

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