diffrent ways iof sending variable values from one page to another page in asp.net

I think you should use Session (Session-StateServer or Session-SQLServer) for web application is hosted in WebGarden or webfarm . or any other Client side State management like cookies.

Configuration: For StateServer
<sessionstate>
    mode="InProc"
    stateConnectionString="tcpip=127.0.0.1:42424"
    sqlConnectionString="data source=127.0.0.1;Trusted_Connection=yes"
    cookieless="false" 
    timeout="20" /> </sessionstate>

Configuration: SQL Server
<sessionstate mode="SQLServer" sqlconnectionstring="..." /> 

For reference
Beginners Introduction to State Management Techniques in ASP.NET[^]
ASP.NET Session Management Internals[^]

Thanks
Akash Detroja

1. If you are using inproc session (when session info is in web servers memory) [THIS IS THE DEFAULT]

You will have to use a load balance that support connection affinity to sticky sessions. so that the load balancer will always forward request from a client to same server.

2. if you are using outporc session i.e. sqlserver or stateserver for session management.

This will take care of everything just fine. you will be needing a separate server and explicit configuration to do this. also you need to make sure that all the values you are putting in session are all serializable.

But i am guessing you are using the first way. so i suggest, check your load balancer to use connection affinity to sticky sessions. that is the only rescue. and what you asked for in the first place is not possible for inproc/default way of session handling.