In-process Mode in asp.net
In-process mode simply means using ASP.NET session state in a similar manner to classic ASP session state. That is, session state is managed in process and if the process is re-cycled, state is lost. Given the new settings that ASP.NET provides, you might wonder why you would ever use this mode. The reasoning is quite simple: performance. The performance of session state, e.g. the time it takes to read from and write to the session state dictionary, will be much faster when the memory read to and from is in process, as cross-process calls add overhead when data is marshaled back and forth or possibly read from SQL Server.
In-process mode is the default setting for ASP.NET. When this setting is used, the only other session config.web settings used are cookieless and timeout.
If we call SessionState.aspx, set a session state value, and stop and start the ASP.NET process (iisreset), the value set before the process was cycled will be lost.
asp.net session configuration
Below is a sample config.web file used to configure the session state settings for an ASP.NET application:
cookieless="false"
timeout="20"
sqlconnectionstring="data source=127.0.0.1;user id=
server="127.0.0.1"
port="42424"
/>
The settings above are used to configure ASP.NET session state. Let's look at each in more detail and cover the various uses afterward.
* Mode. The mode setting supports three options: inproc, sqlserver, and stateserver. As stated earlier, ASP.NET supports two modes: in process and out of process. There are also two options for out-of-process state management: memory based (stateserver), and SQL Server based (sqlserver). We'll discuss implementing these options shortly.
* Cookieless. The cookieless option for ASP.NET is configured with this simple Boolean setting.
* Timeout. This option controls the length of time a session is considered valid. The session timeout is a sliding value; on each request the timeout period is set to the current time plus the timeout value
* Sqlconnectionstring. The sqlconnectionstring identifies the database connection string that names the database used for mode sqlserver.
* Server. In the out-of-process mode stateserver, it names the server that is running the required Windows NT service: ASPState.
* Port. The port setting, which accompanies the server setting, identifies the port number that corresponds to the server setting for mode stateserver.
How the SQL Server Session state entry is in the Web Config ??
<sessionState
mode="InProc"
stateConnectionString="tcpip=127.0.0.1:42424"
sqlConnectionString="data source=127.0.0.1;Trusted_Connection=yes"
cookieless="false"
timeout="20"
/>
